Ultraporous palladium on flexible graphene-coated carbon fiber paper as high-performance electro-catalysts for the electro-oxidation of ethanol

被引:62
作者
Sawangphruk, Montree [1 ,2 ]
Krittayavathananon, Atiweena [1 ]
Chinwipas, Natee [1 ]
机构
[1] Kasetsart Univ, Natl Ctr Excellence Petr Petrochem & Adv Mat, Dept Chem Engn, Fac Engn, Bangkok 10900, Thailand
[2] Kasetsart Univ, Ctr Adv Studies Nanotechnol & Its Applicat Chem, Bangkok 10900, Thailand
关键词
ENHANCED ELECTROCATALYTIC ACTIVITY; ALKALINE MEDIA; FUEL-CELLS; METHANOL ELECTROOXIDATION; OXIDATION REACTION; SMALL MOLECULES; FORMIC-ACID; PD; NI; ELECTRODEPOSITION;
D O I
10.1039/c2ta00659f
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
For palladium nanocatalysts (PdNCs) to be used as a successfully high-performance direct ethanol fuel cell anode material, improvements in electro-catalytic activity and stability are needed. Here we show an excellent controllable electrodeposition method for fabricating the ultraporous structure of PdNCs. Ultraporous PdNCs were coated on three different carbon materials: flexible carbon fiber paper (CFP), and CFP modified with either graphene oxide (GO) or reduced graphene oxide (rGO) nanosheets. The as-fabricated electrode of PdNCs/rGO/CFP exhibits higher catalytic activity toward the electro-oxidation of ethanol in alkaline media, more excellent poisoning tolerance to carbonaceous species, and higher stability than other electrodes.
引用
收藏
页码:1030 / 1034
页数:5
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