Cited 31 time in webofscience Cited 23 time in scopus

Enhanced electrocatalysis of PtRu onto graphene separated by Vulcan carbon spacer

Title
Enhanced electrocatalysis of PtRu onto graphene separated by Vulcan carbon spacer
Authors
Woo, SeungheeLee, JaeyoungPark, Seung-KeunKim, HasuckChung, Taek DongPiao, Yuanzhe
DGIST Authors
Kim, Hasuck
Issue Date
2013-01
Citation
Journal of Power Sources, 222, 261-266
Type
Article
Article Type
Article
Keywords
GrapheneMethanol OxidationPlatinumPolymer Electrolyte Membrane Fuel Cell (PEMFC)RutheniumVulcan Carbon
ISSN
0378-7753
Abstract
For low temperature polymer fuel cells, carbon supporting material is an important factor that may affect the performance of supported electrocatalysts owing to interactions and surface reactivity. In this research, we design a well-arranged structure of grapheneeVulcan carbon composite to prepare highly dispersed 40 wt.% PtRu electrocatalysts. The Vulcan carbon is added as a nano spacer to enhance electrocatalytic activities of the PtRu catalysts in a methanol oxidation and fuel cell performance resulting in its higher utilization efficiency. The results show that Vulcan carbon is effectively designed to array of graphene sheets, resulting in more triple-phase boundaries available for electrochemical reaction and better mass transport in the catalyst layer. © 2012 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/3269
DOI
10.1016/j.jpowsour.2012.07.115
Publisher
Elsevier B.V.
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringETC1. Journal Articles
Energy Science and EngineeringEnergy Systems Engineering1. Journal Articles


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