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author:

Shao, P. (Shao, P..) [1] | Yi, L. (Yi, L..) [2] | Chen, J.-Q. (Chen, J.-Q..) [3] | Cao, C. (Cao, C..) [4] | Zhang, H.-X. (Zhang, H.-X..) [5] | Zhang, J. (Zhang, J..) [6]

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Abstract:

Electrocatalytic carbon dioxide reduction reaction (CO2RR) is a promising strategy to mitigate the greenhouse gas effect. The implementation of such a technique highly depends on efficient electrocatalysts. Here, we report a composite catalyst of Ag@BIF-73NSs, prepared by loading Ag nanoparticles on boron imidazolate framework (BIF) nanosheets (BIF-73NSs) through the hydroxyl functional group of the organic ligand in BIF-73NSs, as an electrocatalyst for electroreduction of CO2 to CO. In the obtained Ag@BIF-73NSs catalysts, ultrasmall Ag nanoparticles (∼2 nm) were evenly dispersed on the ultrathin 2D BIF-73 nanosheets with a thickness of ∼2 nm. Electrocatalytic results clearly demonstrated that Ag@BIF-73NSs exhibits much higher performance for electrocatalytic reduction of CO2 to CO with a FE close to 90%, which is comparable to those of pure Ag, but comparatively at much lower Ag loading (Ag, 3.39 wt%). Moreover, the mass current density of Ag@BIF-73NSs (1816.67 A cm−2 g−1 Ag, ICP-AES 3.39 wt% Ag) is 1101-fold higher than that of Ag@graphene (1.65 A cm−2 g−1 Ag, ICP-AES 57.13 wt% Ag) sheet composites. These results indicate that Ag@BIF-73NSs achieves highly selective CO generation with low metal Ag loading in electrochemical CO2RR catalysis by evenly loading Ag nanoparticles on ultrathin boron imidazolate framework nanosheets through coordination effects. © 2023 The Royal Society of Chemistry.

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  • [ 1 ] [Shao P.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 2 ] [Shao P.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 3 ] [Yi L.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 4 ] [Chen J.-Q.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 5 ] [Cao C.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 6 ] [Zhang H.-X.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 7 ] [Zhang J.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China

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Source :

Sustainable Energy and Fuels

ISSN: 2398-4902

Year: 2023

Issue: 17

Volume: 7

Page: 4120-4126

5 . 0

JCR@2023

5 . 0 0 0

JCR@2023

ESI HC Threshold:49

JCR Journal Grade:2

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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