Article
Multidisciplinary Sciences
Qing Zhao, John Mark P. Martirez, Emily A. Carter
Summary: This study investigates the mechanism of copper (Cu) in CO2RR electrocatalysis through quantum mechanical calculations and reveals the importance of hydrogenated CO species as precursors for C-C bond formation. These findings contribute to the rational design of efficient and selective CO2RR electrocatalysts.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Multidisciplinary
Yanling Qiu, Wenbin Xu, Pengfei Yao, Qiong Zheng, Huamin Zhang, Xianfeng Li
Summary: This study focuses on the electrochemical reduction of CO2 to valuable chemicals using Cu electrodes derived from Cu2O with predominant (111) facets. The optimized electrode shows high faradaic efficiency for HCOOH production, surpassing most reported Cu electrodes. The catalytic activity of unit active sites on Cu2O-derived Cu electrodes is found to be higher than that on blank Cu electrodes, with OCHO* production being favored in the presence of cetyltrimethylammonium bromide.
Article
Electrochemistry
Hannah L. A. Dickinson, Mark D. Symes
Summary: The rising levels of carbon dioxide in the atmosphere have led to research efforts in generating energy from renewable sources that do not contribute to further increases in atmospheric CO2. At the same time, atmospheric CO2 can be used as a feedstock for storing renewable energy, specifically through electroreduction of CO2 using renewable sources to produce hydrocarbon fuels that do not increase net CO2 levels when burned. To make this renewable-powered production of hydrocarbons from CO2 a reality, improved electrocatalysts for carbon dioxide reduction are needed, particularly bimetallic catalysts combining copper with other metals. This review provides an overview of recent progress in CO2 electroreduction using bimetallic cathodes composed of copper and various other metals, with a focus on studies exploring beyond two-electron reduction products in the last two years.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Ziqi Zhang, Jinyun Xu, Yu Zhang, Liping Zhao, Ming Li, Guoqiang Zhong, Di Zhao, Minjing Li, Xudong Hu, Wenju Zhu, Chunming Zheng, Xiaohong Sun
Summary: This paper explores the challenge of increasing global CO2 emissions and highlights the role of porous metal oxide materials in electrocatalytic reduction of CO2 (CO2RR). Porous metal oxides offer high surface area and tunability for optimizing CO2RR reaction mechanisms.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Analytical
Yang Yue, Xiaohuan Zou, Yuande Shi, Jiannan Cai, Yuxuan Xiang, Zhongshui Li, Shen Lin
Summary: In this study, a low crystallinity CuO-SnO2/C catalyst was synthesized by integrating CuO and SnO2 on carbon black, which exhibited significantly enhanced selectivity, activity, and stability towards the reduction of carbon dioxide. The well-distributed CuO and SnO2 nanoparticles on carbon black resulted in a larger electrochemically active surface area (ECSA) and faster electron transfer capacity, contributing to the enhanced electrocatalytic process. The low crystallinity of CuO on CuO-SnO2/C facilitated the easier electron transfer to the CO2 surface, accelerating the reduction reaction. The obtained CuO-SnO2/C with low crystallinity efficiently catalyzed the reduction of CO2 to formic acid and syngas, with a high Faradaic efficiency (FE) of C1 products (HCOOH + CO) of 80%, and 100% FE can be utilized.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Girma W. Woyessa, Jay-ar B. dela Cruz, Mohammad Rameez, Chen-Hsiung Hung
Summary: A novel nanocomposite catalyst has been developed for efficient electrochemical CO2 reduction to CO, achieving high Faradaic efficiency and selectivity, which can be attributed to the intimate interface interaction between materials and higher electrochemically active surface area.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Miyeon Chang, Wenhao Ren, Weiyan Ni, Seunghwa Lee, Xile Hu
Summary: In this study, the effects of three different ionomers (Nafion, Sustainion-type XA-9, and poly(terphenyl piperidinium) (PTP)) on the electrochemical reduction of CO2 using Cu-based electrocatalysts were investigated. It was found that Nafion had little influence on the performance, XA-9 promoted CO formation, and PTP favored hydrogen and formate production. The observed effects were attributed to charge transfer and hydrophilicity/hydrophobicity of the ionomers. This study highlights the structure-sensitive nature of the ionomer-catalyst interaction in CO2RR.
Article
Chemistry, Multidisciplinary
Shenghua Chen, Zedong Zhang, Wenjun Jiang, Shishi Zhang, Jiexin Zhu, Liqiang Wang, Honghui Ou, Shahid Zaman, Lin Tan, Peng Zhu, Erhuan Zhang, Peng Jiang, Yaqiong Su, Dingsheng Wang, Yadong Li
Summary: This study presents a novel tandem catalyst that efficiently converts CO2 to CH4, improving CH4 yield and increasing Faradaic efficiency, offering a promising strategy for the rational design of high-efficiency multisite catalytic systems.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Benjamin P. Charnay, Zhihao Cui, Melissa A. Marx, Joseph Palazzo, Anne C. Co
Summary: This study investigates the electrochemical reduction of aldehydes to alcohols as a pathway for converting CO2 to alcohols. Experimental results support the proposed mechanism of reducing acetaldehyde and propionaldehyde to ethanol and 1-propanol on a Cu catalyst. Notably, acetaldehyde is selectively reduced to ethanol on Cu, but not on Au, as supported by both experimental observations and DFT calculations.
Article
Chemistry, Multidisciplinary
Menglu Li, Wenbo Li, Wentao Song, Cheng Wang, Yingfang Yao, Congping Wu, Wenjun Luo, Zhigang Zou
Summary: Through the electro-deposition of Bi catalysts on Cu foams, it was found that Cu not only acted as the electrode substrates, but also the active materials for CO2 reduction.
Article
Chemistry, Applied
Linlin Wang, Xin Li, Leiduan Hao, Song Hong, Alex W. Robertson, Zhenyu Sun
Summary: To facilitate the electrochemical reduction of CO2 to fuels and valuable chemicals, the development of active, low-cost, and selective catalysts is crucial. In this study, a novel catalyst consisting of CuO nanoparticles anchored on Cu-MOF nanosheets was reported. The catalyst exhibited efficient CO2 conversion to ethylene with high faradaic efficiency and demonstrated stability and high power conversion efficiency. The excellent electrocatalytic performance was attributed to the interface between CuO and Cu-MOF and the unique structure of Cu-MOF.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Congyi He, Siyu Wang, Xingxing Jiang, Qi Hu, Hengpan Yang, Chuanxin He
Summary: In this study, carbon nanofiber-supported bimetallic cobalt-copper catalysts were successfully synthesized through electrospinning and pyrolysis techniques. These catalysts exhibited efficient electrochemical reduction of CO2 with high faradaic efficiency and stability. This work provides a facile and economic method for fabricating efficient bimetallic catalysts for CO2 electroreduction and other electrocatalysis applications.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Jan Vavra, Tzu-Hsien Shen, Dragos Stoian, Vasiliki Tileli, Raffaella Buonsanti
Summary: This study reveals the reconstruction mechanism of Cu-based nanocatalysts during the electrochemical CO2 reduction reaction, as well as the key role of copper oxides in this process, through a combination of electrochemical in situ transmission electron microscopy and operando X-ray absorption spectroscopy. Understanding these underlying processes provides a pathway to rational design of Cu electro(re)deposited catalysts and stability improvement for catalysts fabricated by other methods.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Jing-Jing Wang, Hong-Juan Wang, Chao Zhang, Yun-Nan Gong, Ya-Li Bai, Tong-Bu Lu
Summary: The study presents a novel Cu/pyrenyl-graphdiyne composite catalyst for efficient conversion of CO2 to formate in electroreduction, exhibiting excellent selectivity and activity achieved through the combined use of metallic Cu nanoparticles and 2D Pyr-GDY support.
Article
Chemistry, Multidisciplinary
Qiucheng Xu, Aoni Xu, Sahil Garg, Asger B. Moss, Ib Chorkendorff, Thomas Bligaard, Brian Seger
Summary: In this study, a descriptor called surface-accessible CO2 concentration ([CO2](SA)) was developed to indicate the limits of CO2-to-CO conversion in CO2 electrolysis. Three general strategies were identified to enrich [CO2](SA), resulting in improved performance. The maximum j(CO) achieved was 368 +/- 28 mA cm(geo)(-2) using a commercial silver catalyst.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jibo Liu, Huijie Shi, Qi Shen, Chenyan Guo, Guohua Zhao
Article
Chemistry, Physical
Chenyan Guo, Peng He, Rongrong Cui, Qi Shen, Nianjun Yang, Guohua Zhao
ADVANCED ENERGY MATERIALS
(2019)
Article
Chemistry, Physical
Rongrong Cui, Qi Shen, Chenyan Guo, Bo Tang, Nianjun Yang, Guohua Zhao
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Electrochemistry
Xuan Jiang, Diwen Ying, Xi Liu, Meichuan Liu, Song Zhou, Chenyan Guo, Guohua Zhao, Yalin Wang, Jinping Jia
ELECTROCHIMICA ACTA
(2020)
Article
Chemistry, Physical
Chenyan Guo, Jingui Zheng, Hongwei Deng, Penghui Shi, Guohua Zhao
Summary: Boron-doped diamond materials exhibit excellent electrochemical and photoelectrochemical properties, making them promising for various applications. Surface modification enhances their performance, while challenges and future research directions in boron-doped diamond photoelectrochemistry are also discussed for theoretical guidance.
Article
Chemistry, Multidisciplinary
Jibo Liu, Chenyan Guo, Xiaojun Hu, Guohua Zhao
Article
Chemistry, Physical
Jibo Liu, Huijie Shi, Qi Shen, Chenyan Guo, Guohua Zhao
APPLIED CATALYSIS B-ENVIRONMENTAL
(2017)
Article
Chemistry, Physical
Qi Shen, Xiaofeng Huang, Jibo Liu, Chenyan Guo, Guohua Zhao
APPLIED CATALYSIS B-ENVIRONMENTAL
(2017)