Efficient and Selective Electroreduction of CO2 to HCOOH over Bismuth-Based Bromide Perovskites in Acidic Electrolytes

Wang, Yan1; Wang, Chun2; Wei, Yi3; Wei, Fang1; Kong, Lichun1; Feng, Jiuju1; Lu, Ji-Qing1; Zhou, Xiaocheng2; Yang, Fa1

2022-08-01

10.1002/chem.202201832

CHEMISTRY-A EUROPEAN JOURNAL   影响因子和分区

0947-6539

1521-3765

Metal halide perovskites, primarily used as optoelectronic devices, have not been applied for electrochemical conversion due to their insufficient stability in moisture. Herein, two bismuth-based perovskites are introduced as novel electrocatalysts to convert CO2 into HCOOH in aqueous acidic media (pH 2.5), exhibiting a high Faradaic efficiency for HCOOH of >80 % in a wide potential range from -0.75 to -1.25 V. Their structural evolution against water was dynamically monitored by in situ spectra. Theoretical calculations further reveal that the formation of intermediate OCHO* on bismuth sites of Cs3Bi2Br9(111) play a pivotal role toward HCOOH production, which has a lower energy barrier than that on Cs2AgBiBr6(001) surfaces. Significantly, CO2 reacts with protons instead of water which can enhance CO2 reduction rate and suppress hydrogen evolution by avoiding carbonate formation in acidic electrolytes. This work paves the way for the extensive investigation of halide perovskites in aqueous systems.

acidic electrolytes bromide perovskites CO2 electroreduction formic acid OCHO* intermediate

SCI ; EI

英语

其他

National Natural Science Foundation of China[22102151] ; Natural Science Foundation of Zhejiang Province[LQ22B030001]

Chemistry

Chemistry, Multidisciplinary

WOS:000844223700001

WILEY-V C H VERLAG GMBH

20223512673676

Bismuth compounds ; Bromine compounds ; Carbon dioxide ; Cesium compounds ; Electrocatalysts ; Electrolytes ; Electrolytic reduction ; Formic acid ; Metal halides ; Optoelectronic devices

Minerals:482.2 ; Ore Treatment:533.1 ; Electric Batteries and Fuel Cells:702 ; Optical Devices and Systems:741.3 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2

CHEMISTRY

Web of Science

1.Zhejiang Normal Univ, Coll Chem & Life Sci, Key Lab Minist Educ Adv Catalysis Mat, Jinhua 321004, Zhejiang, Peoples R China
2.Nanjing Normal Univ, Sch Chem & Mat Sci, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Jiangsu Key Lab New Power Batteries, Nanjing 210023, Jiangsu, Peoples R China
3.Southern Univ Sci & Technol SUSTech, Dept Chem, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Guangdong, Peoples R China

Wang, Yan,Wang, Chun,Wei, Yi,et al. Efficient and Selective Electroreduction of CO2 to HCOOH over Bismuth-Based Bromide Perovskites in Acidic Electrolytes[J]. CHEMISTRY-A EUROPEAN JOURNAL,2022.

Wang, Yan.,Wang, Chun.,Wei, Yi.,Wei, Fang.,Kong, Lichun.,...&Yang, Fa.(2022).Efficient and Selective Electroreduction of CO2 to HCOOH over Bismuth-Based Bromide Perovskites in Acidic Electrolytes.CHEMISTRY-A EUROPEAN JOURNAL.

Wang, Yan,et al."Efficient and Selective Electroreduction of CO2 to HCOOH over Bismuth-Based Bromide Perovskites in Acidic Electrolytes".CHEMISTRY-A EUROPEAN JOURNAL (2022).