Abstract
Hollow core mesoporous shell carbon (HCMSC) has been explored for the first time as an anode catalyst support in proton exchange membrane fuel cell (PEMFC). The fantastic structural characteristics of the HCMSC such as large specific surface area and mesoporous volume and well-developed three-dimensionally interconnected bimodal porosity make it an excellent catalyst support in PEMFC. The supported PtRu nanoparticles have shown smaller particle size and better dispersion on the HCMSC than on commercial carbon black Vulcan XC-72. Considerable improvements in the electrocatalytic activity toward H2 oxidation and fuel cell performance have been demonstrated by the HCMSC-supported PtRu nanoparticles compared with Vulcan XC-72 supported ones (i.e., corresponding to an enhancement of more than 60% in power density compared with that of PtRu/Vulcan), implying that HCMSC is a superb anode catalyst support in PEMFC.
Original language | English |
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Pages (from-to) | 25-30 |
Number of pages | 6 |
Journal | Catalysis Today |
Volume | 146 |
Issue number | 1-2 |
DOIs | |
State | Published - 15 Aug 2009 |
Bibliographical note
Funding Information:The authors thank KETEP and WCU Research Program for financial support and the Korean Basic Science Institute at Jeonju, Chuncheon and Deajeon for SEM, TEM and XRD measurements. In particular, JSYu thanks Prof. Vincenzo Tricoli at University of Pisa for helpful discussion regarding this work.
Keywords
- Catalyst support
- Electrocatalyst
- Hollow core mesoporous shell carbon
- Hydrogen oxidation
- Proton exchange membrane fuel cell