Article
Chemistry, Multidisciplinary
Shulin Zhao, Yue Qin, Xuerong Wang, Chun Wang, Xin Chen, Yu Wang, Jie-Xiang Yu, Xiaojing Liu, Yuping Wu, Yuhui Chen
Summary: Reconstructed Bi2O2CO3 nanosheets (BOCR NSs) are synthesized by an in situ electrochemical anion exchange strategy from Bi2O2SO4, and achieve a high formate Faradaic efficiency (FEformate) of 95.7% at -1.1 V versus reversible hydrogen electrode (vs. RHE). The BOCR NSs also maintain FEformate above 90% in a wide potential range from -0.8 to -1.5 V in H-cell. The in situ spectroscopic studies reveal the anion exchange from Bi2O2SO4 to Bi2O2CO3 and the self-reduction to metallic Bi to construct Bi/Bi-O active site, facilitating the formation of OCHO* intermediate. This demonstrates the potential of anion exchange strategy in designing high-performance catalysts for CO2RR.
Article
Chemistry, Physical
Zhongxue Yang, Hongzhi Wang, Xiang Fei, Wenhang Wang, Yuezhu Zhao, Xiaoshan Wang, Xiaojie Tan, Qingshan Zhao, Huaiping Wang, Jiexin Zhu, Liang Zhou, Hui Ning, Mingbo Wu
Summary: Rod-like CuBi bimetallic catalysts synthesized by carbonization and oxidation of CuBi-MOF precursors showed significantly enhanced activity and selectivity for CO2RR due to the formation of Bi2CuO4 at the catalyst interface, resulting in an allured high FEformate of 100% at -0.77 V (vs. RHE) and a wide potential window of 900 mV, with remarkable durability in an H-cell. The dominance of the HCOO* pathway, boosted CO2 molecules adsorption capacity, and enhanced charge transfer capacity by Bi2CuO4 contributed to the improved catalytic performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Miao Wang, Shuai Liu, Bo Chen, Fengyu Tian, Chuang Peng
Summary: This study demonstrates that the Bi-Cu (2:1) bimetallic catalyst exhibits high faradaic efficiency and long-term stability in a wide potential window, which is attributed to the optimized interfacial electronic structure and electrocatalytic mechanism through HCOO* pathway.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Yidan Sun, Fenfen Wang, Fang Liu, Shukang Zhang, Shulin Zhao, Juan Chen, Yan Huang, Xiaojing Liu, Yuping Wu, Yuhui Chen
Summary: A series of PdCu bimetallic alloy catalysts with tunable compositions based on dendritic architectures were reported, which can efficiently convert CO2 to formate at lower potentials, with an enlarged potential window and high selectivity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Daniel Tan, Wonhee Lee, Young Eun Kim, You Na Ko, Min Hye Youn, Ye Eun Jeon, Jumi Hong, Jeong Eun Park, Jaeho Seo, Soon Kwan Jeong, Yejung Choi, Hyuk Choi, Hyun You Kim, Ki Tae Park
Summary: CO2 electrocatalytic conversion is a viable approach to reduce the atmospheric CO2 concentration. In this study, the fabrication of indium-bismuth nanosphere demonstrated outstanding performance in efficient CO2 reduction to formate, surpassing traditional catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Daniel Tan, Wonhee Lee, Young Eun Kim, You Na Ko, Min Hye Youn, Ye Eun Jeon, Jumi Hong, Jeong Eun Park, Jaeho Seo, Soon Kwan Jeong, Yejung Choi, Hyuk Choi, Hyun You Kim, Ki Tae Park
Summary: In this study, indium-bismuth nanospheres were fabricated and showed exceptional performance for electrocatalytic reduction of CO2 to formate. The tuned electronic properties induced by the synergistic interaction between indium and bismuth enable stable adsorption of intermediates on the catalyst surface, resulting in a high faradaic efficiency of nearly 100%.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Le Li, Xuan Jin, Xiaohan Yu, Miao Zhong
Summary: In this work, homogeneously alloyed Cu1-xBix bimetallic catalysts were fabricated via physical vapor deposition, demonstrating excellent electrical conductivity over a large area. The Cu-Bi catalysts were found to significantly suppress the competing H-2 evolution reaction and enhance the selectivity of CO2 reduction to formate. The catalysts exhibited high formate Faradaic efficiency and cathodic energy efficiency at a lower cathodic potential, and maintained stability at a certain current density.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Maolin Zhang, Zedong Zhang, Zhenghang Zhao, Hao Huang, Dalaver H. Anjum, Dingsheng Wang, Jr-hau He, Kuo-Wei Huang
Summary: Cu-Sn composite catalysts can be designed to selectively produce formate or CO by varying the Cu/Sn composition, thanks to the critical existence of small amounts of Cu or Sn single atoms in the catalysts.
Article
Nanoscience & Nanotechnology
Chan Yang, Yarong Hu, Sanxiu Li, Qun Huang, Juan Peng
Summary: In this study, self-supporting bimetallic nanoleaves consisting of Bi and Sb components were fabricated on carbon paper using a facile electrodeposition method. The synergistic effect of Bi and Sb and the change of electronic structure led to high formate selectivity and excellent stability in the electrochemical CO2 reduction reaction. Furthermore, the bimetallic Bi-Sb catalyst exhibited outstanding stability for formate generation in flow cells, which is rarely reported in previous studies. This work offers new insights into the development of bimetallic self-supporting electrodes for CO2 reduction.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yicheng Li, Ernest Pahuyo Delmo, Guoyu Hou, Xianglong Cui, Ming Zhao, Zhihong Tian, Yu Zhang, Minhua Shao
Summary: Incorporating bismuth-based catalysts with L-histidine, a common amino acid molecule, is an effective strategy to overcome the trade-off between activity and selectivity in electrochemical carbon dioxide reduction reaction. The catalyst exhibits excellent performance in a wide potential range.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jinshuo Zou, Chong-Yong Lee, Gordon G. Wallace
Summary: The study investigates the impact of electrolyte alkalinity on CO2 electroreduction performance in a flow-cell system based on SnS nanosheets, revealing that alkaline electrolyte widens the potential window for CO2 electroreduction, leading to high Faradaic efficiency and current densities.
Article
Chemistry, Multidisciplinary
Huaxin Li, Xian Yue, Jing Che, Zhou Xiao, Xianbo Yu, Fenglei Sun, Chao Xue, Junhui Xiang
Summary: In this study, Cu-Bi aerogels with enhanced CO2RR activity were successfully constructed using a simple one-step self-assembly method. The Cu1Bi2 exhibits excellent CO2RR activity towards formic acid at a potential of -0.9 V vs. RHE, with a high faradaic efficiency (FE) of 96.57%, and the FEHCOOH remains above 80.18% in a wide potential window.
Article
Chemistry, Physical
Xueli Wang, Lu-Hua Zhang, Datong Chen, Jiayu Zhan, Jiangyi Guo, Zisheng Zhang, Fengshou Yu
Summary: In this study, an oxygen-vacancy-rich ultrasmall bismuth subcarbonate supported on reduced graphene oxide composite was designed for electrochemical CO2-to-formate conversion. The composite exhibited outstanding formate selectivity and high partial current density over a wide potential range. Theoretical results showed that the abundant oxygen vacancies lowered the energy barrier for CO2 formation, leading to high formate selectivity.
Article
Chemistry, Physical
Sheng Chang, Yimin Xuan, Jingjing Duan, Kai Zhang
Summary: This study presents a modified Bi/Nafion interface that demonstrates excellent stability and selectivity in CO2 conversion. The modification of Nafion enhances the CO2 adsorption capability and promotes proton-coupled electron transfer, leading to improved CO2 conversion efficiency. This work provides valuable insights into the interfacial manipulation of electrodes for converting CO2 into valuable products.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Aya Gomaa Abdelkader Mohamed, Enbo Zhou, Zipeng Zeng, Jiafang Xie, Dunfeng Gao, Yaobing Wang
Summary: The study demonstrates that optimization of Zn(Pb) electrocatalyst efficiently reduces CO2 to formate with controlled CO evolution selectivity, representing a significant step towards practical electrocatalysis. The alloying effect between Zn and Pb plays a crucial role in suppressing CO and achieving superior activity for a selective CO2-to-formate reduction.
