Silver-Graphene Nanoribbon Composite Catalyst for the Oxygen Reduction Reaction in Alkaline Electrolyte

被引：63

作者：

Davis, Danae J. ^{[1
]}

Raji, Abdul-Rahman O. ^{[2
]}

Lambert, Timothy N. ^{[1
]}

Vigil, Julian A. ^{[1
]}

Li, Lei ^{[2
]}

Nan, Kewang ^{[3
]}

Tour, James M. ^{[2
,3
,4
]}

机构：

[1] Sandia Natl Labs, Dept Mat Devices & Energy Technol, Albuquerque, NM 87185 USA

[2] Rice Univ, Dept Chem, Houston, TX 77005 USA

[3] Rice Univ, Houston, TX 77005 USA

[4] Rice Univ, Richard E Smalley Inst Nanoscale Sci & Technol, Houston, TX 77005 USA

来源：

ELECTROANALYSIS | 2014年 / 26卷 / 01期

基金：

美国能源部;

关键词：

Silver nanoparticles; Graphene nanoribbons; Oxygen reduction reaction; Catalysis; AG NANOPARTICLES; FUNCTIONALIZATION; HYBRIDS; STATE; PT/C; AU;

D O I：

10.1002/elan.201300254

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Silver-graphene nanoribbons (Ag-GNRs) were prepared from the chemical unzipping of multiwalled carbon nanotubes (MWCNTs) by reaction with Na/K alloy, Ag(O2CCH3) and then CH3OH. Ag-GNRs exhibited improved electrocatalytic ability for the oxygen reduction reaction (ORR) in 0.1 M KOH as compared to the underlying GNR substrate alone and displayed an earlier onset and higher currents than a commercial Ag/Carbon (Ag/C) catalyst. The Ag-GNR hybrid demonstrates an outstanding tolerance to CH3OH crossover which exceeds that of the commercial benchmark, 20% Pt/C.

引用

页码：164 / 170

页数：7

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