A facile synthetic route for highly durable mesoporous platinum thin film electrocatalysts based on graphene: morphological and support effects on the oxygen reduction reaction

Title
A facile synthetic route for highly durable mesoporous platinum thin film electrocatalysts based on graphene: morphological and support effects on the oxygen reduction reaction
Authors
백경열조계룡염용식서흔영플라딥윤호규
Keywords
electrocatalysts; oxygen reduction reaction; graphene; block copolymers; platinum; mesoporous
Issue Date
2017-02
Publisher
Journal of materials chemistry. A, Materials for energy and sustainability
Citation
VOL 5, NO 7-3135
Abstract
Porous-structured noble metal electrocatalysts offer activity and durability benefits based on high surface area and interconnected nanostructure, respectively. However, the conventional technical methods used for synthesizing the porous structure are still difficult and remain defects on the structure. Here we report a facile route for the synthesis of uniform, large-area mesoporous platinum thin films based on ionic polymer doped graphene, which exhibit substantially enhanced activity and durability for oxygen reduction relative to commercial Pt/C. Notably, the remarkable durability (≥ 95% retention of electrochemical activities after 30,000 cycles of intensive accelerated durability tests) is acquired that is ascribed to the synergetic effects derived from the interconnected Pt structure (morphology) and ionic polymer-doped graphene (support). The suggested robust concept for the controlled mesoporous-structured platinum thin film on graphene could be a great breakthrough for a highly durable electrocatalyst.
URI
http://pubs.kist.re.kr/handle/201004/65130
ISSN
2050-7488
Appears in Collections:
KIST Publication > Article
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