A novel 2D Co3(HADQ)2 metal-organic framework as a highly active and stable electrocatalyst for acidic oxygen reduction

Iqbal，Rashid1,2; Ali，Sajjad3; Yasin，Ghulam1,2; Ibraheem，Shumaila1,2; Tabish，Mohammad4; Hamza，Mathar5; Chen，Henan1; Xu，Hu3; Zeng，Jie6; Zhao，Wei1

2022-02-15

10.1016/j.cej.2021.132642

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

Efficient and robust electrocatalysts for acidic Oxygen reduction reaction (ORR) is crucial for the proton exchange membrane hydrogen fuel cells. However, the current electrocatalysts suffer from the stability issues in the acidic enviorment during ORR. Herein, we introduce a new layer-stacked two-dimensional (2D) metal-organic framework (MOF), Co(HADQ) (HADQ = 2,3,6,7,10,11-hexaamine dipyrazino quinoxaline), synthesized for the first time. This novel MOF material shows the extremely high conductivity of 8,385.744 S/m with extraordinary activity (E = 0.836 V vs. RHE, n = 3.93, and j = 5.31 mAcm) and an exceptional stability (up to 20,000 cycles) as the electrocatalyst for ORR in an acidic media (pH = 0.29), outperforming most of the state of the art Metal-N-C and single-atom electrocatalysts for acidic ORR. Density functional theory calculations indicate that the Co-sites are the active sites. We propose that Co(HADQ) is a promising model catalyst for mechanistic studies of acidic ORR, due to its well defined and tunable structure.

2D MOF Acidic Oxygen Reduction DFT Electrocatalysis

SCI ; EI

英语

其他

Natural Science Foundation of China[21972096] ; Shenzhen Science and Technology Program[JCYJ20190808150615285]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:000730111800004

ELSEVIER SCIENCE SA

20214111006819

Density functional theory ; Electrocatalysis ; Electrocatalysts ; Electrolysis ; Metal-Organic Frameworks ; Organometallics ; Oxygen ; Proton exchange membrane fuel cells (PEMFC)

Metallurgy:531.1 ; Ore Treatment:533.1 ; Fuel Cells:702.2 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Probability Theory:922.1 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

ENGINEERING

2-s2.0-85116715867

Scopus

1.Institute for Advanced Study,Shenzhen University,Shenzhen,518060,China
2.College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen,518060,China
3.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
4.State Key Laboratory of Chemical Resource Engineering,College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing,100029,China
5.CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,National Center for Nanoscience and Technology,Zhongguancun, Beijing,Beiyitiao No. 11,100190,China
6.Hefei National Laboratory for Physical Sciences at the Microscale,Department of Chemical Physics,University of Science and Technology of China,Hefei,230026,China

Iqbal，Rashid,Ali，Sajjad,Yasin，Ghulam,et al. A novel 2D Co3(HADQ)2 metal-organic framework as a highly active and stable electrocatalyst for acidic oxygen reduction[J]. CHEMICAL ENGINEERING JOURNAL,2022,430.

Iqbal，Rashid.,Ali，Sajjad.,Yasin，Ghulam.,Ibraheem，Shumaila.,Tabish，Mohammad.,...&Zhao，Wei.(2022).A novel 2D Co3(HADQ)2 metal-organic framework as a highly active and stable electrocatalyst for acidic oxygen reduction.CHEMICAL ENGINEERING JOURNAL,430.

Iqbal，Rashid,et al."A novel 2D Co3(HADQ)2 metal-organic framework as a highly active and stable electrocatalyst for acidic oxygen reduction".CHEMICAL ENGINEERING JOURNAL 430(2022).