A facile synthetic route for highly durable mesoporous platinum thin film electrocatalysts based on graphene: morphological and support effects on the oxygen reduction reaction
- A facile synthetic route for highly durable mesoporous platinum thin film electrocatalysts based on graphene: morphological and support effects on the oxygen reduction reaction
- 백경열; 조계룡; 염용식; 서흔영; 플라딥; 윤호규
- electrocatalysts; oxygen reduction reaction; graphene; block copolymers; platinum; mesoporous
- Issue Date
- Journal of materials chemistry. A, Materials for energy and sustainability
- VOL 5, NO 7-3135
- 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.
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