Facile preparation of PdNi/rGO and its electrocatalytic performance towards formic acid oxidation

She, Yiyi1; Lu, Zhouguang2; Fan, Wenguang1; Jewell, Simon1; Leung, Michael K. H.1

2014

10.1039/c3ta14546h

Journal of Materials Chemistry A   影响因子和分区

2050-7488

2050-7496

A highly dispersed and active PdNi alloy supported on reduced graphene oxide (rGO) was successfully prepared for formic acid electro-oxidation under acidic conditions. The material was prepared by a simultaneous reduction method using NaBH4 as the reductant, followed by annealing in H-2 at 500 degrees C. Different characterization methods verified that H-2 annealing at an appropriate temperature had a significant influence on both physiochemical composition and electrocatalytic performance of the synthesized catalysts. H-2 annealing at 500 degrees C facilitated formation of a PdNi alloy without agglomeration of the nano-sized metallic catalyst, while without H-2 treatment Ni was found predominantly in the form of Ni(OH)(2). Cyclic voltammetry and chromoamperometric testing demonstrated that, when compared to the sample without H-2 treatment, PdNi/rGO after H-2 annealing exhibited better catalytic activity and stability towards formic acid electro-oxidation. The enhanced performance can be explained by the modification of the electronic structure of Pd by Ni after alloy formation and the large specific surface area and excellent electron conductivity of the rGO support.

SCI ; EI

英语

其他

Natural Science Foundation of China[21001117]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000331893700028

ROYAL SOC CHEMISTRY

20140917404301

Annealing ; Binary alloys ; Catalyst activity ; Catalytic oxidation ; Cyclic voltammetry ; Electronic structure ; Electrooxidation ; Formic acid ; Graphene ; Nanocatalysts ; Nickel alloys ; Oxidation ; Sodium Borohydride

Heat Treatment Processes:537.1 ; Precious Metals:547.1 ; Nickel Alloys:548.2 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1

Web of Science

1.City Univ Hong Kong, Abil R&D Energy Res Ctr, Sch Energy & Environm, Hong Kong, Hong Kong, Peoples R China
2.South Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen, Guangdong, Peoples R China

She, Yiyi,Lu, Zhouguang,Fan, Wenguang,et al. Facile preparation of PdNi/rGO and its electrocatalytic performance towards formic acid oxidation[J]. Journal of Materials Chemistry A,2014,2(11):3894-3898.

She, Yiyi,Lu, Zhouguang,Fan, Wenguang,Jewell, Simon,&Leung, Michael K. H..(2014).Facile preparation of PdNi/rGO and its electrocatalytic performance towards formic acid oxidation.Journal of Materials Chemistry A,2(11),3894-3898.

She, Yiyi,et al."Facile preparation of PdNi/rGO and its electrocatalytic performance towards formic acid oxidation".Journal of Materials Chemistry A 2.11(2014):3894-3898.