Molecular Catalyst with Near 100% Selectivity for CO2 Reduction in Acidic Electrolytes

Jiang, Zhan1; Zhang, Zisheng1,2; Li, Huan1; Tang, Yirong1; Yuan, Yubo1; Zao, Jie1; Zheng, Hongzhi1; Liang, Yongye1,3

2022-12-01

10.1002/aenm.202203603

Advanced Energy Materials   影响因子和分区

1614-6832

1614-6840

The electrocatalytic carbon dioxide reduction reaction (CO2RR) in an acidic medium is conducive to the efficient utilization of CO2 by preventing the formation of carbonate/bicarbonate. However, acidic media are more favorable for the hydrogen evolution reaction (HER), resulting in unsatisfactory CO2RR selectivities. It is demonstrated that the molecularly dispersed electrocatalyst of beta-tetra methoxy-substituted nickel phthalocyanine on carbon nanotubes (NiPc-OMe MDE) can efficiently catalyze CO2RR in acidic media (pH 2 to 0.47) with Faradaic efficiencies of CO >98% over a wide range of current densities from -50 to -400 mA cm(-2). It is found that the superior selectivity performance can be attributed to the presence of potassium ions, the high preference of CO2RR over HER on the active site, and few side reaction sites. The study illuminates the potential of molecular electrocatalysts for selective and rapid reduction of CO2 in acid media.

acidic electrolytes CO2 reduction metal phthalocyanines molecular electrocatalysis

SCI ; EI

英语

第一 ; 通讯

[22075125] ; [2019B121205001] ; [JCYJ20220818100618039] ; [JCYJ20190809142415351]

Chemistry ; Energy & Fuels ; Materials Science ; Physics

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000901413900001

WILEY-V C H VERLAG GMBH

20230113326851

Catalyst selectivity ; Electrocatalysis ; Electrocatalysts ; Electrolytes ; Electrolytic reduction ; Pollution control

Ore Treatment:533.1 ; Electric Batteries and Fuel Cells:702 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
3.Southern Univ Sci & Technol, Guangdong Hong Kong Macao Joint Lab Photon Thermal, Shenzhen 518055, Peoples R China

Jiang, Zhan,Zhang, Zisheng,Li, Huan,et al. Molecular Catalyst with Near 100% Selectivity for CO2 Reduction in Acidic Electrolytes[J]. Advanced Energy Materials,2022,13(6).

Jiang, Zhan.,Zhang, Zisheng.,Li, Huan.,Tang, Yirong.,Yuan, Yubo.,...&Liang, Yongye.(2022).Molecular Catalyst with Near 100% Selectivity for CO2 Reduction in Acidic Electrolytes.Advanced Energy Materials,13(6).

Jiang, Zhan,et al."Molecular Catalyst with Near 100% Selectivity for CO2 Reduction in Acidic Electrolytes".Advanced Energy Materials 13.6(2022).