Pt nanocrystals electrodeposited on reduced graphene oxide/carbon fiber paper with efficient electrocatalytic properties

被引：5

作者：

Chen, Zhiling ^{[1
,2
]}

Zhou, You ^{[1
,2
]}

Li, Yuxin ^{[1
,2
]}

Liu, Jianguo ^{[1
,2
,3
]}

Zou, Zhigang ^{[1
,2
]}

机构：

[1] Nanjing Univ, Coll Engn & Appl Sci, Natl Lab Solid State Microstruct, Jiangsu Key Lab Nano Technol, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China

[3] Kunshan Sunlaite New Energy Co Ltd, 1699 South Zuchongzhi Rd, Suzhou 215347, Peoples R China

来源：

PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL | 2017年 / 27卷 / 04期

关键词：

Square-wave potential; Reduced graphene oxide; Concave nanocube; Composite electrode; Electrochemical performance; HIGH-INDEX FACETS; FORMIC-ACID; FUEL-CELL; PLATINUM NANOCRYSTALS; OXIDE; SHAPE; OXIDATION; NANOPARTICLES; CATALYSTS; ELECTROOXIDATION;

D O I：

10.1016/j.pnsc.2017.08.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon fiber paper (CFP) wrapped with reduced graphene oxide (rGO) film as the composite support (rGO/CFP) of Pt catalysts was studied. It was found that rGO could affect the size and morphology of Pt nanocrystals (NCs). Concave nanocubes (CNC) Pt NCs similar to 20 nm were uniformly electrodeposited on high reduced HrGO/CFP while irregular Pt NCs similar to 62 nm were loaded on low reduced LrGO. Compared with Pt-LrGO/CFP and Pt-MrGO/CFP, the CNC Pt-HrGO/CFP exhibited a higher electrochemically active surface area (121.7 m(2) g(-1)), as well as enhanced electrooxidation activity of methanol (499 mA mg(-1)) and formic acid (950 mA mg(-1)). The results further demonstrated that the CNC Pt-HrGO/CFP could serve as the gas diffusion electrode in fuel cells and yielded a satisfactory performance (1855 mW mg(-1)). The work can provide an attractive perspective on the convenient preparation of the novel gas diffusion electrode for proton exchange membrane fuel cells.

引用

页码：452 / 459

页数：8

共 31 条

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