Publications

@article{Holoubek2025,

title = {Double-Layer Design Enables Independent Kinetic Modulation in CO                    _{2}                    Electrolysis},

author = {John Holoubek and Kuan-Yu Lin and Xun Guan and Jing Wang and Huayue Ai and Jian Qin and Yi Cui},

doi = {10.1021/acsenergylett.5c03397},

issn = {2380-8195},

year  = {2026},

date = {2026-01-09},

urldate = {2026-01-09},

journal = {ACS Energy Lett.},

volume = {11},

number = {1},

pages = {726--732},

publisher = {American Chemical Society (ACS)},

keywords = {Echem},

pubstate = {published},

tppubtype = {article}

}

@article{Feng2025,

title = {Hydrotrope-enabled high concentration aqueous electrolytes for reversible and sustainable iron metal anodes},

author = {Guangxia Feng and Zaichun Liu and John Holoubek and Louisa C. Greenburg and Ge Zhang and Yuqi Li and Xun Guan and Yi Cui and Pu Zhang and Adam Brest and Xueli Zheng and Yi Cui},

doi = {10.1038/s41467-025-65160-w},

issn = {2041-1723},

year  = {2025},

date = {2025-12-00},

urldate = {2025-12-00},

journal = {Nat Commun},

volume = {16},

number = {1},

publisher = {Springer Science and Business Media LLC},

keywords = {Energy Storage},

pubstate = {published},

tppubtype = {article}

}

@article{D5EE02978C,

title = {A solvation-driven reevaluation of organic electrolytes for zinc batteries},

author = {John Holoubek and Pu Zhang and Chad Serrao and Huayue Ai and Il Rok Choi and Louisa C. Greenburg and Xun Guan and Angela Cai and Wenbo Zhang and Yi Cui},

url = {http://dx.doi.org/10.1039/D5EE02978C},

doi = {10.1039/D5EE02978C},

year  = {2025},

date = {2025-01-01},

urldate = {2025-01-01},

journal = {Energy Environ. Sci.},

volume = {18},

issue = {18},

pages = {8608-8617},

publisher = {The Royal Society of Chemistry},

abstract = {Zinc batteries promise low-cost energy storage for grids but are limited by poor negative electrode reversibility. Thermodynamically stable organic electrolytes can theoretically enhance said reversibility but present high raw material costs and sluggish electrochemical kinetics. Herein, we demonstrate that abandoning the state-of-the-art chemistries based on fluorinated zinc salts and specialty solvents for those based on ZnCl2 and mass-produced organic solvents can simultaneously remedy both issues. The Zn2+ solvation structure of these electrolytes substantially reduces the Zn deposition overpotential relative to conventional organic systems and generates polyhedral Zn with preferential Zn(002) texturing. Optimized electrolytes based on ZnCl2 and ethyl acetate (EA) demonstrate Coulombic efficiencies (CE) of >99.9% without any discernible losses during 24 hour calendar aging. Economic projections indicate that these systems present a more than 80% reduction in the levelized electrolyte cost relative to aqueous systems when 24 hours of corrosion losses are considered. Lastly, we demonstrate a hybrid Zn/Na full cell, in which the designed electrolyte is projected to contribute only 5.0% of the material cost. This work offers a route to scalable, low-cost organic electrolytes for Zn batteries.},

keywords = {Energy Storage},

pubstate = {published},

tppubtype = {article}

}

@article{Shi2024,

title = {Long‐Term Autotrophic Growth and Solar‐to‐Chemical Conversion in \textit{Shewanella Oneidensis} MR‐1 through Light‐Driven Electron Transfer},

author = {Yan Shi and Kejing Zhang and Jianxin Chen and Bingtian Zhang and Xun Guan and Xin Wang and Tong Zhang and Han Song and Long Zou and Xiangfeng Duan and Haichun Gao and Zhang Lin},

doi = {10.1002/anie.202412072},

issn = {1521-3773},

year  = {2024},

date = {2024-12-16},

urldate = {2024-12-16},

journal = {Angew Chem Int Ed},

volume = {63},

number = {51},

publisher = {Wiley},

abstract = {<jats:title>Abstract</jats:title><jats:p>Members of the genus <jats:italic>Shewanella</jats:italic> are known for their versatile electron accepting routes, which allow them to couple decomposition of organic matter to reduction of various terminal electron acceptors for heterotrophic growth in diverse environments. Here, we report autotrophic growth of <jats:italic>Shewanella oneidensis</jats:italic> MR‐1 with photoelectrons provided by illuminated biogenic CdS nanoparticles. This hybrid system enables photosynthetic oscillatory acetate production from CO<jats:sub>2</jats:sub> for over five months, far exceeding other inorganic‐biological hybrid system that can only sustain for hours or days. Biochemical, electrochemical and transcriptomic analyses reveal that the efficient electron uptake of <jats:italic>S. oneidensis</jats:italic> MR‐1 from illuminated CdS nanoparticles supplies sufficient energy to stimulate the previously overlooked reductive glycine pathway for CO<jats:sub>2</jats:sub> fixation. The continuous solar‐to‐chemical conversion is achieved by photon induced electric recycling in sulfur species. Overall, our findings demonstrate that this mineral‐assisted photosynthesis, as a widely existing and unique model of light energy conversion, could support the sustained photoautotrophic growth of non‐photosynthetic microorganisms in nutrient‐lean environments and mediate the reversal of coupled carbon and sulfur cycling, consequently resulting in previously unknown environmental effects. In addition, the hybrid system provides a sustainable and flexible platform to develop a variety of solar products for carbon neutrality.</jats:p>},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Guan2024c,

title = {Seawater alkalization via an energy-efficient electrochemical process for CO            _{2}            capture},

author = {Xun Guan and Ge Zhang and Jinlei Li and Sang Cheol Kim and Guangxia Feng and Yuqi Li and Tony Cui and Adam Brest and Yi Cui},

doi = {10.1073/pnas.2410841121},

issn = {1091-6490},

year  = {2024},

date = {2024-11-05},

urldate = {2024-11-05},

journal = {Proc. Natl. Acad. Sci. U.S.A.},

volume = {121},

number = {45},

publisher = {Proceedings of the National Academy of Sciences},

abstract = {<jats:p>

            Electrochemical pH-swing strategies offer a promising avenue for cost-effective and energy-efficient carbon dioxide (CO

            <jats:sub>2</jats:sub>

            ) capture, surpassing the traditional thermally activated processes and humidity-sensitive techniques. The concept of elevating seawater’s alkalinity for scalable CO

            <jats:sub>2</jats:sub>

            capture without introducing additional chemical as reactant is particularly intriguing due to its minimal environmental impact. However, current commercial plants like chlor-alkali process or water electrolysis demand high thermodynamic voltages of 2.2 V and 1.23 V, respectively, for the production of sodium hydroxide (NaOH) from seawater. These high voltages are attributed to the asymmetric electrochemical reactions, where two completely different reactions take place at the anode and cathode. Here, we developed a symmetric electrochemical system for seawater alkalization based on a highly reversible and identical reaction taking place at the anode and cathode. We utilize hydrogen evolution reaction at the cathode, where the generated hydrogen is looped to the anode for hydrogen oxidation reaction. Theoretical calculations indicate an impressively low energy requirement ranging from 0.07 to 0.53 kWh/kg NaOH for established pH differences of 1.7 to 13.4. Experimentally, we achieved the alkalization with an energy consumption of 0.63 kWh/kg NaOH, which is only 38% of the theoretical energy requirements of the chlor-alkali process (1.64 kWh/kg NaOH). Further tests demonstrated the system’s potential of enduring high current densities (~20 mA/cm

            <jats:sup>2</jats:sup>

            ) and operating stability over an extended period (>110 h), showing its potential for future applications. Notably, the CO

            <jats:sub>2</jats:sub>

            adsorption tests performed with alkalized seawater exhibited remarkably improved CO

            <jats:sub>2</jats:sub>

            capture dictated by the production of hydroxide compared to the pristine seawater.

          </jats:p>},

keywords = {Echem},

pubstate = {published},

tppubtype = {article}

}

@article{Zhang2024,

title = {Spontaneous lithium extraction and enrichment from brine with net energy output driven by counter-ion gradients},

author = {Ge Zhang and Yuqi Li and Xun Guan and Guoliang Hu and Hance Su and Xueer Xu and Guangxia Feng and Sanzeeda Baig Shuchi and Sang Cheol Kim and Jiawei Zhou and Rong Xu and Xin Xiao and Allen Wu and Yi Cui},

doi = {10.1038/s44221-024-00326-2},

issn = {2731-6084},

year  = {2024},

date = {2024-11-00},

urldate = {2024-11-00},

journal = {Nat Water},

volume = {2},

number = {11},

pages = {1091--1101},

publisher = {Springer Science and Business Media LLC},

keywords = {Echem},

pubstate = {published},

tppubtype = {article}

}

@article{Li2024,

title = {In situ formation of liquid crystal interphase in electrolytes with soft templating effects for aqueous dual-electrode-free batteries},

author = {Yuqi Li and Xueli Zheng and Evan Z. Carlson and Xin Xiao and Xiwen Chi and Yi Cui and Louisa C. Greenburg and Ge Zhang and Elizabeth Zhang and Chenwei Liu and Yufei Yang and Mun Sek Kim and Guangxia Feng and Pu Zhang and Hance Su and Xun Guan and Jiawei Zhou and Yecun Wu and Zhichen Xue and Weiyu Li and Michal Bajdich and Yi Cui},

doi = {10.1038/s41560-024-01638-z},

issn = {2058-7546},

year  = {2024},

date = {2024-11-00},

urldate = {2024-11-00},

journal = {Nat Energy},

volume = {9},

number = {11},

pages = {1350--1359},

publisher = {Springer Science and Business Media LLC},

keywords = {Energy Storage},

pubstate = {published},

tppubtype = {article}

}

@article{Schuman2024,

title = {Integrated Proteomics and Metabolomics Reveal Altered Metabolic Regulation of \textit{Xanthobacter autotrophicus} under Electrochemical Water-Splitting Conditions},

author = {Zachary Schuman and Yongchao Xie and Samantha O’Keeffe and Xun Guan and Jihui Sha and Jingwen Sun and James A. Wohlschlegel and Junyoung O. Park and Chong Liu},

doi = {10.1021/acsami.4c07363},

issn = {1944-8252},

year  = {2024},

date = {2024-08-07},

urldate = {2024-08-07},

journal = {ACS Appl. Mater. Interfaces},

volume = {16},

number = {31},

pages = {40973--40979},

publisher = {American Chemical Society (ACS)},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Guan2024b,

title = {Redox and Energy Homeostasis Enabled by Photocatalytic Material–Microbial Interfaces},

author = {Xun Guan and Sevcan Erşan and Yongchao Xie and Junyoung Park and Chong Liu},

doi = {10.1021/acsnano.4c05763},

issn = {1936-086X},

year  = {2024},

date = {2024-08-06},

urldate = {2024-08-06},

journal = {ACS Nano},

volume = {18},

number = {31},

pages = {20567--20575},

publisher = {American Chemical Society (ACS)},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Che2024,

title = {Synergistic material–microbe interface toward deeper anaerobic defluorination},

author = {Shun Che and Xun Guan and Roselyn Rodrigues and Yaochun Yu and Yongchao Xie and Chong Liu and Yujie Men},

doi = {10.1073/pnas.2400525121},

issn = {1091-6490},

year  = {2024},

date = {2024-07-30},

urldate = {2024-07-30},

journal = {Proc. Natl. Acad. Sci. U.S.A.},

volume = {121},

number = {31},

publisher = {Proceedings of the National Academy of Sciences},

abstract = {<jats:p>

            Per- and polyfluoroalkyl substances (PFAS), particularly the perfluorinated ones, are recalcitrant to biodegradation. By integrating an enrichment culture of reductive defluorination with biocompatible electrodes for the electrochemical process, a deeper defluorination of a C

            <jats:sub>6</jats:sub>

            -perfluorinated unsaturated PFAS was achieved compared to the biological or electrochemical system alone. Two synergies in the bioelectrochemical system were identified: i) The in-series microbial-electrochemical defluorination and ii) the electrochemically enabled microbial defluorination of intermediates. These synergies at the material–microbe interfaces surpassed the limitation of microbial defluorination and further turned the biotransformation end products into less fluorinated products, which could be less toxic and more biodegradable in the environment. This material–microbe hybrid system brings opportunities in the bioremediation of PFAS driven by renewable electricity and warrants future research on mechanistic understanding of defluorinating and electroactive microorganisms at the material–microbe interface for system optimizations.

          </jats:p>},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Guan2024,

title = {Performance evaluation and multidisciplinary analysis of catalytic fixation reactions by material–microbe hybrids},

author = {Xun Guan and Yongchao Xie and Chong Liu},

doi = {10.1038/s41929-024-01151-2},

issn = {2520-1158},

year  = {2024},

date = {2024-05-00},

urldate = {2024-05-00},

journal = {Nat Catal},

volume = {7},

number = {5},

pages = {475--482},

publisher = {Springer Science and Business Media LLC},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Xie2023,

title = {Unexpected metabolic rewiring of CO            _{2}            fixation in H            _{2}            -mediated materials–biology hybrids},

author = {Yongchao Xie and Sevcan Erşan and Xun Guan and Jingyu Wang and Jihui Sha and Shuangning Xu and James A. Wohlschlegel and Junyoung O. Park and Chong Liu},

doi = {10.1073/pnas.2308373120},

issn = {1091-6490},

year  = {2023},

date = {2023-10-17},

urldate = {2023-10-17},

journal = {Proc. Natl. Acad. Sci. U.S.A.},

volume = {120},

number = {42},

publisher = {Proceedings of the National Academy of Sciences},

abstract = {<jats:p>

            A hybrid approach combining water-splitting electrochemistry and H

            <jats:sub>2</jats:sub>

            -oxidizing, CO

            <jats:sub>2</jats:sub>

            -fixing microorganisms offers a viable solution for producing value-added chemicals from sunlight, water, and air. The classic wisdom without thorough examination to date assumes that the electrochemistry in such a H

            <jats:sub>2</jats:sub>

            -mediated process is innocent of altering microbial behavior. Here, we report unexpected metabolic rewiring induced by water-splitting electrochemistry in H

            <jats:sub>2</jats:sub>

            -oxidizing acetogenic bacterium

            <jats:italic>Sporomusa ovata</jats:italic>

            that challenges such a classic view. We found that the planktonic

            <jats:italic>S. ovata</jats:italic>

            is more efficient in utilizing reducing equivalent for ATP generation in the materials–biology hybrids than cells grown with H

            <jats:sub>2</jats:sub>

            supply, supported by our metabolomic and proteomic studies. The efficiency of utilizing reducing equivalents and fixing CO

            <jats:sub>2</jats:sub>

            into acetate has increased from less than 80% of chemoautotrophy to more than 95% under electroautotrophic conditions. These observations unravel previously underappreciated materials’ impact on microbial metabolism in seemingly simply H

            <jats:sub>2</jats:sub>

            -mediated charge transfer between biotic and abiotic components. Such a deeper understanding of the materials–biology interface will foster advanced design of hybrid systems for sustainable chemical transformation.

          </jats:p>},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Guan2022,

title = {Maximizing light-driven CO2 and N2 fixation efficiency in quantum dot–bacteria hybrids},

author = {Xun Guan and Sevcan Erşan and Xiangchen Hu and Timothy L. Atallah and Yongchao Xie and Shengtao Lu and Bocheng Cao and Jingwen Sun and Ke Wu and Yu Huang and Xiangfeng Duan and Justin R. Caram and Yi Yu and Junyoung O. Park and Chong Liu},

doi = {10.1038/s41929-022-00867-3},

issn = {2520-1158},

year  = {2022},

date = {2022-11-00},

urldate = {2022-11-00},

journal = {Nat Catal},

volume = {5},

number = {11},

pages = {1019--1029},

publisher = {Springer Science and Business Media LLC},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Sheng2021,

title = {De Novo Approach to Encapsulating Biocatalysts into Synthetic Matrixes: From Enzymes to Microbial Electrocatalysts},

author = {Tianran Sheng and Xun Guan and Chong Liu and Yude Su},

doi = {10.1021/acsami.1c09708},

issn = {1944-8252},

year  = {2021},

date = {2021-11-10},

urldate = {2021-11-10},

journal = {ACS Appl. Mater. Interfaces},

volume = {13},

number = {44},

pages = {52234--52249},

publisher = {American Chemical Society (ACS)},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Xiang2021,

title = {Ag^{II}‐Mediated Electrocatalytic Ambient CH_{4} Functionalization Inspired by HSAB Theory},

author = {Danlei Xiang and Jesus A. Iñiguez and Jiao Deng and Xun Guan and Antonio Martinez and Chong Liu},

doi = {10.1002/anie.202104217},

issn = {1521-3773},

year  = {2021},

date = {2021-08-09},

urldate = {2021-08-09},

journal = {Angew Chem Int Ed},

volume = {60},

number = {33},

pages = {18152--18161},

publisher = {Wiley},

abstract = {<jats:title>Abstract</jats:title><jats:p>Although most class (b) transition metals have been studied in regard to CH<jats:sub>4</jats:sub> activation, divalent silver (Ag<jats:sup>II</jats:sup>), possibly owing to its reactive nature, is the only class (b) high‐valent transition metal center that is not yet reported to exhibit reactivities towards CH<jats:sub>4</jats:sub> activation. We now report that electrochemically generated Ag<jats:sup>II</jats:sup> metalloradical readily functionalizes CH<jats:sub>4</jats:sub> into methyl bisulfate (CH<jats:sub>3</jats:sub>OSO<jats:sub>3</jats:sub>H) at ambient conditions in 98 % H<jats:sub>2</jats:sub>SO<jats:sub>4</jats:sub>. Mechanistic investigation experimentally unveils a low activation energy of 13.1 kcal mol<jats:sup>−1</jats:sup>, a high pseudo‐first‐order rate constant of CH<jats:sub>4</jats:sub> activation up to 2.8×10<jats:sup>3</jats:sup> h<jats:sup>−1</jats:sup> at room temperature and a CH<jats:sub>4</jats:sub> pressure of 85 psi, and two competing reaction pathways preferable towards CH<jats:sub>4</jats:sub> activation over solvent oxidation. Reaction kinetic data suggest a Faradaic efficiency exceeding 99 % beyond 180 psi CH<jats:sub>4</jats:sub> at room temperature for potential chemical production from widely distributed natural gas resources with minimal infrastructure reliance.</jats:p>},

keywords = {Echem},

pubstate = {published},

tppubtype = {article}

}

@article{Lu2021c,

title = {Perfluorocarbon nanoemulsions create a beneficial O2 microenvironment in N2-fixing biological | inorganic hybrid},

author = {Shengtao Lu and Roselyn M. Rodrigues and Shuyuan Huang and Daniel A. Estabrook and John O. Chapman and Xun Guan and Ellen M. Sletten and Chong Liu},

doi = {10.1016/j.checat.2021.06.002},

issn = {2667-1093},

year  = {2021},

date = {2021-08-00},

urldate = {2021-08-00},

journal = {Chem Catalysis},

volume = {1},

number = {3},

pages = {704--720},

publisher = {Elsevier BV},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Lu2021,

title = {Perfluorocarbon nanoemulsions create a beneficial O2 microenvironment in N2-fixing biological | inorganic hybrid},

author = {Shengtao Lu and Roselyn M. Rodrigues and Shuyuan Huang and Daniel A. Estabrook and John O. Chapman and Xun Guan and Ellen M. Sletten and Chong Liu},

doi = {10.1016/j.checat.2021.06.002},

issn = {2667-1093},

year  = {2021},

date = {2021-08-00},

journal = {Chem Catalysis},

volume = {1},

number = {3},

pages = {704--720},

publisher = {Elsevier BV},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{<LineBreak>doi:10.1126/science.abf3427,

title = {Silver nanoparticles boost charge-extraction efficiency in \textit{Shewanella} microbial fuel cells},

author = {Bocheng Cao and Zipeng Zhao and Lele Peng and Hui-Ying Shiu and Mengning Ding and Frank Song and Xun Guan and Calvin K. Lee and Jin Huang and Dan Zhu and Xiaoyang Fu and Gerard C. L. Wong and Chong Liu and Kenneth Nealson and Paul S. Weiss and Xiangfeng Duan and Yu Huang},

url = {https://www.science.org/doi/abs/10.1126/science.abf3427},

doi = {10.1126/science.abf3427},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

journal = {Science},

volume = {373},

number = {6561},

pages = {1336-1340},

abstract = {The bacterium Shewanella oneidensis is well known to use extracellular electron sinks, metal oxides and ions in nature or electrodes when cultured in a fuel cell, to power the catabolism of organic material. However, the power density of microbial fuel cells has been limited by various factors that are mostly related to connecting the microbes to the anode. Cao et al. found that a reduced graphene oxide–silver nanoparticle anode circumvents some of these issues, providing a substantial increase in current and power density (see the Perspective by Gaffney and Minteer). Electron microscopy revealed silver nanoparticles embedded or attached to the outer cell membrane, possibly facilitating electron transfer from internal electron carriers to the anode. —MAF A silver nanoparticle anode greatly boosts the performance of Shewanella biofilm–based microbial fuel cells. Microbial fuel cells (MFCs) can directly convert the chemical energy stored in organic matter to electricity and are of considerable interest for power generation and wastewater treatment. However, the current MFCs typically exhibit unsatisfactorily low power densities that are largely limited by the sluggish transmembrane and extracellular electron-transfer processes. Here, we report a rational strategy to boost the charge-extraction efficiency in Shewanella MFCs substantially by introducing transmembrane and outer-membrane silver nanoparticles. The resulting Shewanella-silver MFCs deliver a maximum current density of 3.85 milliamperes per square centimeter, power density of 0.66 milliwatts per square centimeter, and single-cell turnover frequency of 8.6 × 105 per second, which are all considerably higher than those of the best MFCs reported to date. Additionally, the hybrid MFCs feature an excellent fuel-utilization efficiency, with a coulombic efficiency of 81%.},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Lu2020,

title = {Electricity-powered artificial root nodule},

author = {Shengtao Lu and Xun Guan and Chong Liu},

doi = {10.1038/s41467-020-15314-9},

issn = {2041-1723},

year  = {2020},

date = {2020-12-00},

urldate = {2020-12-00},

journal = {Nat Commun},

volume = {11},

number = {1},

publisher = {Springer Science and Business Media LLC},

abstract = {<jats:title>Abstract</jats:title><jats:p>Root nodules are agricultural-important symbiotic plant-microbe composites in which microorganisms receive energy from plants and reduce dinitrogen (N<jats:sub>2</jats:sub>) into fertilizers. Mimicking root nodules using artificial devices can enable renewable energy-driven fertilizer production. This task is challenging due to the necessity of a microscopic dioxygen (O<jats:sub>2</jats:sub>) concentration gradient, which reconciles anaerobic N<jats:sub>2</jats:sub> fixation with O<jats:sub>2</jats:sub>-rich atmosphere. Here we report our designed electricity-powered biological|inorganic hybrid system that possesses the function of root nodules. We construct silicon-based microwire array electrodes and replicate the O<jats:sub>2</jats:sub> gradient of root nodules in the array. The wire array compatibly accommodates N<jats:sub>2</jats:sub>-fixing symbiotic bacteria, which receive energy and reducing equivalents from inorganic catalysts on microwires, and fix N<jats:sub>2</jats:sub> in the air into biomass and free ammonia. A N<jats:sub>2</jats:sub> reduction rate up to 6.5 mg N<jats:sub>2</jats:sub> per gram dry biomass per hour is observed in the device, about two orders of magnitude higher than the natural counterparts.</jats:p>},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Rodrigues2019,

title = {Perfluorocarbon nanoemulsion promotes the delivery of reducing equivalents for electricity-driven microbial CO2 reduction},

author = {Roselyn M. Rodrigues and Xun Guan and Jesus A. Iñiguez and Daniel A. Estabrook and John O. Chapman and Shuyuan Huang and Ellen M. Sletten and Chong Liu},

doi = {10.1038/s41929-019-0264-0},

issn = {2520-1158},

year  = {2019},

date = {2019-05-00},

urldate = {2019-05-00},

journal = {Nat Catal},

volume = {2},

number = {5},

pages = {407--414},

publisher = {Springer Science and Business Media LLC},

keywords = {Material-Biology},

pubstate = {published},

tppubtype = {article}

}

@article{Li2017,

title = {Synthesis of 2D Layered BiI_{3}Nanoplates, BiI_{3}/WSe_{2}van der Waals Heterostructures and Their Electronic, Optoelectronic Properties},

author = {Jia Li and Xun Guan and Chen Wang and Hung‐Chieh Cheng and Ruoqi Ai and Kangkang Yao and Peng Chen and Zhengwei Zhang and Xidong Duan and Xiangfeng Duan},

doi = {10.1002/smll.201701034},

issn = {1613-6829},

year  = {2017},

date = {2017-10-00},

urldate = {2017-10-00},

journal = {Small},

volume = {13},

number = {38},

publisher = {Wiley},

abstract = {<jats:p>Two–dimensional layered materials (2DLMs) have attracted considerable recent interest as a new material platform for fundamental materials science and potential new technologies. Here we report the growth of layered metal halide materials and their optoelectronic properties. BiI<jats:sub>3</jats:sub>nanoplates can be readily grown on SiO<jats:sub>2</jats:sub>/Si substrates with a hexagonal geometry, with a thickness in the range of 10–120 nm and a lateral dimension of 3–10 µm. Transmission electron microscopy and electron diffraction studies demonstrate that the individual nanoplates are high quality single crystals. Micro‐Raman studies show characteristic<jats:italic>A</jats:italic><jats:sub>g</jats:sub>band at ≈115 cm<jats:sup>−1</jats:sup>with slight red‐shift with decreasing thickness, and micro‐photoluminescence studies show uniform emission around 690 nm with blue‐shift with decreasing thickness. Electrical transport studies of individual nanoplates show n‐type semiconductor characteristics with clear photoresponse. Further, the BiI<jats:sub>3</jats:sub>can be readily grown on other 2DLMs (e.g., WSe<jats:sub>2</jats:sub>) to form van der Waals heterostructures. Electrical transport measurements of BiI<jats:sub>3</jats:sub>/WSe<jats:sub>2</jats:sub>vertical heterojunctions demonstrate p–n diode characteristics with gate‐tunable rectification behavior and distinct photovoltaic effect. The synthesis of the BiI<jats:sub>3</jats:sub>nanoplates can expand the library of 2DLMs and enable a wider range of van der Waals heterostructures.</jats:p>},

keywords = {Materials},

pubstate = {published},

tppubtype = {article}

}

@article{Wang2016,

title = {Chemical vapor deposition growth of single-crystalline cesium lead halide microplatelets and heterostructures for optoelectronic applications},

author = {Yiliu Wang and Xun Guan and Dehui Li and Hung-Chieh Cheng and Xidong Duan and Zhaoyang Lin and Xiangfeng Duan},

doi = {10.1007/s12274-016-1317-1},

issn = {1998-0000},

year  = {2017},

date = {2017-04-00},

urldate = {2017-04-00},

journal = {Nano Res.},

volume = {10},

number = {4},

pages = {1223--1233},

publisher = {Tsinghua University Press},

keywords = {Materials},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1021/acsnano.7b01507,

title = {Growth of Single-Crystalline Cadmium Iodide Nanoplates, CdI2/MoS2 (WS2, WSe2) van der Waals Heterostructures, and Patterned Arrays},

author = {Ruoqi Ai and Xun Guan and Jia Li and Kangkang Yao and Peng Chen and Zhengwei Zhang and Xidong Duan and Xiangfeng Duan},

url = {https://doi.org/10.1021/acsnano.7b01507},

doi = {10.1021/acsnano.7b01507},

year  = {2017},

date = {2017-01-01},

urldate = {2017-01-01},

journal = {ACS Nano},

volume = {11},

number = {3},

pages = {3413-3419},

note = {PMID: 28303713},

keywords = {Materials},

pubstate = {published},

tppubtype = {article}

}