Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/79057
Title: Tuning the electrocatalytic activity of Pt by structurally ordered PdFe/C for the hydrogen oxidation reaction in alkaline media
Authors: Xiao, WP
Lei, W
Wang, J 
Gao, GY
Zhao, TH
Cordeiro, MAL
Lin, RQ
Gong, MX
Guo, XY 
Stavitski, E
Xin, HLL
Zhu, Y 
Wang, DL
Issue Date: 2018
Publisher: Royal Society of Chemistry
Source: Journal of materials chemistry A, 28 June 2018, v. 6, no. 24, p. 11346-11352 How to cite?
Journal: Journal of materials chemistry A 
Abstract: Tuning the hydrogen adsorption energy (E-H) by controlling the surface electronic structure of Pt is essential for enhancing the hydrogen oxidation reaction (HOR) performance in alkaline media. This could be achieved by forming a Pt skin on PdFe/C nanoparticles with structurally ordered intermetallic (O-PdFe@Pt/C) or disordered alloy (D-PdFe@Pt/C). The HOR activity on O-PdFe@Pt/C exhibits an exchange current density of 1.49 A mg(Pt)(-1), which is 3.87 and 7.56 times higher than that on D-PdFe@Pt/C (0.385 A mg(Pt)(-1)) and Pt/C (0.197 A mg(Pt)(-1)), respectively. The excellent electrocatalytic HOR performance on O-PdFe@Pt/C can be ascribed to the attenuation of E-H on the Pt shell induced by the structurally ordered PdFe core, where the E-H on O-PdFe@Pt surface is 0.18 eV smaller than that on Pt according to DFT calculations.
URI: http://hdl.handle.net/10397/79057
ISSN: 2050-7488
EISSN: 2050-7496
DOI: 10.1039/c8ta03250e
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

2
Citations as of Apr 3, 2019

WEB OF SCIENCETM
Citations

1
Last Week
0
Last month
Citations as of Apr 6, 2019

Page view(s)

42
Last Week
1
Last month
Citations as of May 21, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.