Metal organic framework-ionic liquid hybrid catalysts for the selective electrochemical reduction of CO2 to CH4

Delmo, Ernest Pahuyo1; Wang, Yian1; Wang, Jing1,2; Zhu, Shangqian1; Li, Tiehuai1; Qin, Xueping1; Tian, Yibo1; Zhao, Qinglan1; Jang, Juhee1; Wang, Yinuo1; Gu, Meng2; Zhang, Lili3; Shao, Minhua1,4,5

2022-07-01

10.1016/S1872-2067(21)63970-0

CHINESE JOURNAL OF CATALYSIS   影响因子和分区

0253-9837

1872-2067

The electrochemical reduction of CO2 towards hydrocarbons is a promising technology that can utilize CO2 and prevent its atmospheric accumulation while simultaneously storing renewable energy. However, current CO2 electrolyzers remain impractical on a large scale due to the low current densities and faradaic efficiencies (FE) on various electrocatalysts. In this study, hybrid HKUST-1 metal-organic framework???fluorinated imidazolium-based room temperature ionic liquid (RTIL) electrocatalysts are designed to selectively reduce CO2 to CH4. An impressive FE of 65.5% towards CH4 at ???1.13 V is achieved for the HKUST-1/[BMIM][PF6] hybrid, with a stable FE greater than 50% maintained for at least 9 h in an H-cell. The observed improvements are attributed to the increased local CO2 concentration and the improved CO2-to-CH4 thermodynamics in the presence of the RTIL molecules adsorbed on the HKUST-1-derived Cu clusters. These findings offer a novel approach of immobilizing RTIL co-catalysts within porous frameworks for CO2 electroreduction applications. Published by Elsevier B.V. All rights reserved.

Methane Room temperature ionic liquid Metal organic framework Catalyst design DFT calculation CO(2 )electroreduction

SCI ; EI

Albanian

其他

Research Grants Council[16310419,16309418,16304821] ; Innovation and Technology Commission[ITC-CNERC14EG03] ; Jiangsu Key Laboratory for the Chemistry of Low-Dimensional Materials[JSKC19016]

Chemistry ; Engineering

Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical

WOS:000809568100004

ELSEVIER

20223012405047

Design for testability ; Electrocatalysts ; Electrolysis ; Electrolytic reduction ; Ionic liquids ; Metal-Organic Frameworks ; Thermodynamics

Metallurgy:531.1 ; Ore Treatment:533.1 ; Thermodynamics:641.1 ; Electrochemistry:801.4.1 ; 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.Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
3.Huaiyin Normal Univ, Jiangsu Key Lab Chem Low Dimens Mat, Huaian 223300, Jiangsu, Peoples R China
4.Hong Kong Univ Sci & Technol, Energy Inst, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
5.Hong Kong Univ Sci & Technol, Chinese Natl Engn Res Ctr Control & Treatment Hea, Kowloon, Clear Water Bay, Hong Kong, Peoples R China

Delmo, Ernest Pahuyo,Wang, Yian,Wang, Jing,et al. Metal organic framework-ionic liquid hybrid catalysts for the selective electrochemical reduction of CO2 to CH4[J]. CHINESE JOURNAL OF CATALYSIS,2022,43(7):1687-1696.

Delmo, Ernest Pahuyo.,Wang, Yian.,Wang, Jing.,Zhu, Shangqian.,Li, Tiehuai.,...&Shao, Minhua.(2022).Metal organic framework-ionic liquid hybrid catalysts for the selective electrochemical reduction of CO2 to CH4.CHINESE JOURNAL OF CATALYSIS,43(7),1687-1696.

Delmo, Ernest Pahuyo,et al."Metal organic framework-ionic liquid hybrid catalysts for the selective electrochemical reduction of CO2 to CH4".CHINESE JOURNAL OF CATALYSIS 43.7(2022):1687-1696.