Improvement of carbon dioxide electroreduction by crystal surface modification of ZIF-8

被引：5

作者：

Zhang, Ting ^{[1
,2
]}

Liu, Hong ^{[3
,6
]}

Han, Xu ^{[1
]}

Biset-Peiro, Marti ^{[2
]}

Yang, Yunhui ^{[1
]}

Imaz, Inhar ^{[1
]}

Maspoch, Daniel ^{[1
,4
]}

Yang, Bo ^{[3
]}

Morante, Joan Ramon ^{[2
,5
]}

Arbiol, Jordi ^{[1
,4
]}

机构：

[1] Catalan Inst Nanosci & Nanotechnol ICN2, CSIC & BIST, Campus UAB, Barcelona 08193, Catalonia, Spain

[2] Catalonia Inst Energy Res IREC, Jardins Dones Negre 1, Barcelona 08930, Catalonia, Spain

[3] ShanghaiTech Univ, Sch Phys Sci & Technol, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China

[4] Pg Lluis Co 23, ICREA, Barcelona 08010, Catalonia, Spain

[5] Univ Barcelona, Dept Phys, Barcelona 08028, Catalonia, Spain

[6] Chinese Acad Sci, ShangHai Inst Microsyst & Informat Technol, State Key Lab Informat Funct Mat, Lab X 2020, Shanghai 200050, Peoples R China

来源：

DALTON TRANSACTIONS | 2023年 / 52卷 / 16期

关键词：

METAL-ORGANIC FRAMEWORKS; TOTAL-ENERGY CALCULATIONS; ELECTROCATALYTIC REDUCTION; CO2; REDUCTION; CHEMISTRY; CATALYST; SIZE;

D O I：

10.1039/d3dt00185g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Metal-organic frameworks (MOFs) possess high CO2 adsorption properties and are considered to be a promising candidate for the electrochemical carbon dioxide reduction reaction (eCO(2)RR). However, their insufficient selectivity and current density constrain their further exploration in the eCO(2)RR. In this work, by introducing a very small proportion of 2,5-dihydroxyterephthalic acid (DOBDC) into ZIF-8, a surface modified ZIF-8-5% catalyst was synthesized by a post-modification method, exhibiting enhanced selectivity (from 56% to 79%) and current density (from -4 mA cm(-2) to -10 mA m(-2)) compared to ZIF-8. Density functional theory (DFT) calculations further demonstrate that the boosted eCO(2)RR performance on ZIF-8-5% could be attributed to the improved formation of the *COOH intermediate stemming from successful DOBDC surface modification. This work opens a new path for improving the catalytic properties of MOFs via their surface modification.

引用

页码：5234 / 5242

页数：9