期刊
RSC ADVANCES
卷 5, 期 128, 页码 106245-106251出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra20895e
关键词
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资金
- National Natural Science Foundation of China [21443006]
- Provincial Natural Science Foundation of Guangdong [2014A030310179]
- Young Creative Talents Project of Guangdong Province Education Department [2014KQNCX200]
- Science and Technology Project of Maoming [2014006]
- Doctor Startup Project of the local University [513086]
The development of multi-component electrocatalysts offers great promise to enhance catalytic performance for the oxygen reduction reaction (ORR) of fuel cells. Herein, we report a novel hybrid material consisting of multiple components of tungsten carbide (WC), iron sulfide (FeS), FePt and nitrogen-doped carbon (NC), i.e. WC/FeS/FePt/NC hybrid architecture, as a high-performance electrocatalyst for the ORR. Due to the attractive multiple promoting effects from these components, the present Pt-based electrocatalyst exhibits an excellent mass activity of 317 mA mg(-1) Pt (at 0.9 V vs. RHE), which is about 2.5 times as high as that of commercial Pt/C catalyst (125 mA mg(-1) Pt). Moreover, superior durability in acidic electrolyte of the WC/FeS/FePt/NC is also demonstrated for the ORR. Importantly, this work provides a new approach for the design of high-performance ORR electrocatalysts by integrating the promoting effects of multiple components (especially for carbides and sulphides) on noble metals, which presents promising potential application for fuel cells.
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