Journal article
Enhanced electrocatalytic activities of three dimensional PtCu@Pt bimetallic alloy nanofoams for oxygen reduction reaction
Catalysis science & technology, Vol.6(13), pp.5052-5059
01/01/2016
Abstract
Finding an approach to synthesize low cost catalysts with high activity and improved durability is the main challenge for the commercialization of proton exchange membrane fuel cells. The electrocatalytic performance of Pt-based catalysts could be improved significantly by accurately controlling the particle size, morphology and composition. In this work, PtCu bimetallic nanofoams, composed of fused nanoparticles with similar to 3 nm in diameter, were synthesized using a one-step reduction method. After dealloying with nitric acid, the PtCu@Pt core-shell bimetallic nanofoams were 7-fold more active in terms of mass activity, 14 times more active on the basis of specific activity, and more durable for ORR than the commercial Pt/C catalyst, which hold great promise in fuel cell applications.
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Details
- Title
- Enhanced electrocatalytic activities of three dimensional PtCu@Pt bimetallic alloy nanofoams for oxygen reduction reaction
- Creators
- Shaofang Fu - Washington State UniversityChengzhou Zhu - Washington State UniversityQiurong Shi - Washington State UniversityDan Du - Washington State UniversityYuehe Lin - Pacific Northwest National Laboratory
- Publication Details
- Catalysis science & technology, Vol.6(13), pp.5052-5059
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Royal Soc Chemistry
- Number of pages
- 8
- Grant note
- Washington State University, USA
- Identifiers
- 99901227840101842
- Language
- English
- Resource Type
- Journal article