Article
Chemistry, Multidisciplinary
Yaming Hao, Yikun Kang, Shaoyan Wang, Zhe Chen, Can Lei, Xueting Cao, Lin Chen, Yefei Li, Zhipan Liu, Ming Gong
Summary: In this study, an electrode/electrolyte synergy strategy was developed to enhance both proton and electron transfers, resulting in efficient neutral water oxidation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Chen Qiao, Zahid Usman, Jie Wei, Lin Gan, Jianhua Hou, Yingying Hao, Youqi Zhu, Jiatao Zhang, Chuanbao Cao
Summary: A catalyst kinetics optimization strategy is proposed based on tuning active site intermediates adsorption. The construction of M-OOH on the catalytic site before the rate-determining step is crucial in this strategy, as it optimizes the overall catalytic kinetics by preventing competition from other intermediates. Through significantly reducing the kinetic energy barrier, M-OOH is formed on the active site at low overpotential, resulting in improved kinetics.
Article
Nanoscience & Nanotechnology
Yuanfeng Gao, Qingyu Xue, Jiayuan Li, Mingkai Zhang, Yuanyuan Ma, Yongquan Qu
Summary: Coupling acid-electrolyte proton exchange membrane fuel cells with cathodic hydrogenation shows potential in energy and chemical industry. The use of phytate coordination on Cu surface enhances the kinetic of proton adsorption/activation and hydrogenation activity. This work provides a promising approach to integrate electricity generation and chemical production.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Jin-Woo Lee, Geon-U Kim, Dong Jun Kim, Yeonjee Jeon, Sheng Li, Taek-Soo Kim, Jung-Yong Lee, Bumjoon J. Kim
Summary: By adding a high-molecular weight polymer acceptor, efficient and mechanically robust active layers with high efficiency and stretchability can be constructed in organic solar cells.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shuanglin He, Fang Huang, Qianqian Wu, Ping Zhang, Ying Xiong, Jie Yang, Rong Zhang, Fang Wang, Lin Chen, T. Leo Liu, Fei Li
Summary: A rare mononuclear manganese complex was reported as a mimic of [FeFe]-hydrogenase, successfully mimicking the functions of its active site by utilizing two consecutive MS-CPET processes to achieve low overpotential in electrochemical hydrogen production.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Physical
Feng Zhu, Wenbin Zhang, Jiao Xun, Bi-Jun Geng, Qing-Man Liang, Yang Yang
Summary: This review focuses on the effects of proton donor/acceptor on several typical electrocatalytical reactions, including species, concentration, pKa, and steric hindrance. Specifically, the proton transfer pathway arising from ligand design strategy of molecular catalysts and modification of electrode-electrolyte interface is presented.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Ming Li, Binbin Du, Yinghao Wu, Shijie Dai, Lingling Zheng, Chao Gao, Yuanhao Wang, Daqin Yun
Summary: The study utilizes a fused-ring electron acceptor as an interfacial material to improve TiO2 surface, decrease defects of the ETL surface, promote the growth of perovskite with large grain size and high quality, enhance interfacial charge transfer, and suppress interfacial charge recombination. The highest PCE achieved for rigid PSCs is 19.61% with reduced hysteresis effect, while flexible PSC with the interfacial modifier ITIC reaches a PCE of 14.87% with improved stability, showing great potential for commercialization.
ORGANIC ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Niklas von Wolff, Marc Robert
Summary: Electron serves as the ultimate redox reagent for building and reshaping molecular structures. Understanding and controlling the parameters involved in dissociative electron transfer (DET) reactivity and its coupling with proton transfer are crucial for enhancing selectivity, kinetics, and energy efficiency in molecular chemistry. Various applications, such as photoredox catalysis, CO2 reduction, and alcohol oxidation, highlight the broad range of processes encompassed by DET pathways and demonstrate the importance of studying the driving force-rate relationships for future developments in energy efficient catalytic schemes in redox organic chemistry.
Article
Chemistry, Multidisciplinary
Mirco Natali, Agnese Amati, Nicola Demitri, Elisabetta Iengo
Summary: Aromatic amino acids such as l-tyrosine and l-tryptophan play a role in mediating electron transfer reactions in natural systems. This study prepared and characterized two novel conjugates based on porphyrin chromophores and l-tryptophan as electron/proton donor. Photophysical investigation showed different quenching mechanisms operating upon visible-light excitation, highlighting the unique role of l-tryptophan in proton-coupled electron transfer.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Rohit D. Chavan, Daniel Prochowicz, Bartlomiej Bonczak, Marcin Fialkowski, Mohammad Mahdi Tavakoli, Pankaj Yadav, Manushi J. Patel, Sanjeev K. Gupta, Pankaj N. Gajjar, Chang Kook Hong
Summary: Novel solution-processable azahomofullerene derivatives (AHF) serve as effective electron-transport layers in perovskite solar cells, achieving higher photovoltaic performances and improved device stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Chenyu Han, Huanxiang Jiang, Pengchao Wang, Lu Yu, Jianxiao Wang, Jianhua Han, Wenfei Shen, Nan Zheng, Shuguang Wen, Yonghai Li, Xichang Bao
Summary: The structure of the BHJ is crucial to the efficiency of organic solar cells, with side chain engineering being a feasible way to manipulate BHJ networks. Isomerization of alkyl chains can reduce the acceptor's crystallinity and enhance the BHJ morphology, leading to improved efficiency.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Nanoscience & Nanotechnology
Yingying Chen, Yunyu Tang, Jiazhi Zou, Kaiwen Zeng, Glib Baryshnikov, Chengjie Li, Yongshu Xie
Summary: Concerted companion dyes, such as XW61, have shown effectiveness in developing efficient DSSCs. By introducing a stronger electron donor moiety, represented by the fluorenyl indoline unit, into the dye structures, enhanced photocurrent density values were achieved. The complementary absorption characteristics of the porphyrin and organic dye moieties led to panchromatic absorption and superior light-harvesting capabilities, resulting in high photovoltaic performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Gert Krauss, Adrian Hochgesang, John Mohanraj, Mukundan Thelakkat
Summary: This study introduces a new concept of using multielectron acceptor (MEA) salts as dopants for conjugated polymers to improve their conductivity and charge carrier concentration. By comparing the doping efficiency of different dopants on different polymers, it is found that MEA dopants can increase carrier density while reducing doping load, providing a highly efficient doping strategy for conjugated polymers.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Chase L. Radford, Priyadarshani D. Mudiyanselage, Amy L. Stevens, Timothy L. Kelly
Summary: Organic solar cells are attractive for indoor and low-light applications, but face challenges such as low photocurrents and susceptibility to defects. This study introduces heteroatom-based blocking groups to enhance the efficiency of non-fullerene acceptor-based solar cells. The results highlight the importance of designing donor:acceptor systems specifically for indoor applications.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Jiang Huang, Dan Zhao, Zifan Dou, Qingshan Fan, Na Li, Shuihai Peng, Haoran Liu, Yadong Jiang, Junsheng Yu, Chang-Zhi Li
Summary: This study has achieved high-performance ITO-free organic solar cells through the incorporation of a newly designed column-patterned microcavity (CPM) for effective optical confinement of thin near-infrared BHJs. By utilizing optical interference, light scattering and local surface plasmons of patterned electrodes, the photocurrent density of OSCs was significantly improved for thin BHJs with near 100 nm thickness.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Physical
Heng Rao, Julien Bonin, Marc Robert
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Chemistry, Multidisciplinary
Heng Rao, Chern-Hooi Lim, Julien Bonin, Garret M. Miyake, Marc Robert
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Multidisciplinary
Bing Ma, Gui Chen, Claire Fave, Lingjing Chen, Ryo Kuriki, Kazuhiko Maeda, Osamu Ishitani, Tai-Chu Lau, Julien Bonin, Marc Robert
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Ruwen Wang, Etienne Boutin, Nicolas Barreau, Fabrice Odobel, Julien Bonin, Marc Robert
Summary: The challenge of converting CO2 into valuable compounds, such as fuels, using renewable energy sources and sustainable compounds is being addressed through artificial photosynthesis research. One promising approach involves solar-assisted electrochemical processes where electrons are supplied by a photovoltaic cell. A PV-EC system has been developed that can reduce CO2 to CO and then convert it to methanol with limited bias voltage. The efficiency of this CO2-to-CH3OH reaction is around 28% under ideal conditions.
Review
Chemistry, Inorganic & Nuclear
Alessandro Perazio, Grace Lowe, Roberto Gobetto, Julien Bonin, Marc Robert
Summary: This review focuses on recent advances in photocatalytic CO2 reduction using heterogenized molecular catalysts. It discusses the chemistry of attaching catalysts to different supports to produce hybrid materials and explores the impact on photocatalytic performance, as well as the potential future impact of these systems on solar fuels research.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Bing Ma, Matias Blanco, Laura Calvillo, Lingjing Chen, Gui Chen, Tai-Chu Lau, Goran Drazic, Julien Bonin, Marc Robert, Gaetano Granozzi
Summary: The cobalt quaterpyridine complexes covalently linked to graphene surfaces with carboxylic acid groups showed high activity and exceptional stability in visible-light-driven CO2 catalytic conversion, with the ability to control product selectivity without compromising efficiency.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Sara Navarro-Jaen, Mirella Virginie, Julien Bonin, Marc Robert, Robert Wojcieszak, Andrei Y. Khodakov
Summary: This review compares different pathways for CO2 reduction to methanol and discusses the advantages and drawbacks of various catalysts, concluding that heterogeneous hydrogenation catalysis and electrocatalysis show the most promise for large-scale methanol synthesis from CO2.
NATURE REVIEWS CHEMISTRY
(2021)
Article
Chemistry, Physical
Martin Kientz, Grace Lowe, Blaine G. McCarthy, Garret M. Miyake, Julien Bonin, Marc Robert
Summary: We have evaluated six phenoxazine derivatives as visible light photosensitizers for the photochemical reduction of CO2 to CO with an iron porphyrin catalyst in organic media. The phenoxazine core was functionalized with electron-donating or -withdrawing groups to modify the photophysical properties. Our observation shows that there is no correlation between the production of CO and the excited state potential of the phenoxazine, but a clear correlation can be made between the oxidation potentials of the phenoxazine and the production of CO. This indicates that the process was limited by photosensitizer regeneration and that electron transfers not directly related to the catalyst activation could play a key role in homogeneous photocatalytic systems.
Article
Energy & Fuels
Ifan E. L. Stephens, Karen Chan, Alexander Bagger, Shannon W. Boettcher, Julien Bonin, Etienne Boutin, Aya K. Buckley, Raffaella Buonsanti, Etosha R. Cave, Xiaoxia Chang, See Wee Chee, Alisson H. M. da Silva, Phil de Luna, Oliver Einsle, Balazs Endrodi, Maria Escudero-Escribano, Jorge V. Ferreira de Araujo, Marta C. Figueiredo, Christopher Hahn, Kentaro U. Hansen, Sophia Haussener, Sara Hunegnaw, Ziyang Huo, Yun Jeong Hwang, Csaba Janaky, Buddhinie S. Jayathilake, Feng Jiao, Zarko P. Jovanov, Parisa Karimi, Marc T. M. Koper, Kendra P. Kuhl, Woong Hee Lee, Zhiqin Liang, Xuan Liu, Sichao Ma, Ming Ma, Hyung-Suk Oh, Marc Robert, Beatriz Roldan Cuenya, Jan Rossmeisl, Claudie Roy, Mary P. Ryan, Edward H. Sargent, Paula Sebastian-Pascual, Brian Seger, Ludmilla Steier, Peter Strasser, Ana Sofia Varela, Rafael E. Vos, Xue Wang, Bingjun Xu, Hossein Yadegari, Yuxiang Zhou
Summary: This article reviews recent progress in electrochemical CO2 reduction, discusses the challenges towards commercialization, and highlights opportunities for further research. The goal is to establish a low- or zero-emission carbon cycle.
JOURNAL OF PHYSICS-ENERGY
(2022)
Article
Chemistry, Physical
Marcella Bonchio, Julien Bonin, Osamu Ishitani, Tong-Bu Lu, Takeshi Morikawa, Amanda J. Morris, Erwin Reisner, Debashrita Sarkar, Francesca M. Toma, Marc Robert
Summary: Visible-light-driven conversion of CO2 to fuels and valuable compounds has been highly active in recent years. However, these processes and catalytic systems are still in early stages of development, with fundamental mechanistic challenges needing to be addressed. Collaborative efforts are needed to explore various approaches and establish robust practices to advance our understanding of these necessary processes.
Article
Chemistry, Physical
Srinivasulu Parshamoni, Cedric Viravaux, Marc Robert, Caroline Mellot-Draznieks, Gui Chen, Pierre Mialane, Anne Dolbecq, Julien Bonin
Summary: In this study, cobalt complexes were immobilized in two different metal-organic frameworks (MOFs) and characterized through solid state characterization techniques and density functional theory calculations. The resulting composite materials showed efficient and selective reduction of CO2 to CO under visible-light irradiation, with the favorable environment provided by the MOF scaffold.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
E. Boutin, L. Merakeb, B. Ma, B. Boudy, M. Wang, J. Bonin, E. Anxolabehere-Mallart, M. Robert
CHEMICAL SOCIETY REVIEWS
(2020)
Review
Chemistry, Inorganic & Nuclear
Elodie Anxolabehere-Mallart, Julien Bonin, Claire Fave, Marc Robert
DALTON TRANSACTIONS
(2019)
Article
Chemistry, Multidisciplinary
Heng Rao, Julien Bonin, Marc Robert
Article
Chemistry, Multidisciplinary
Heng Rao, Julien Bonin, Marc Robert
CHEMICAL COMMUNICATIONS
(2017)