Journal article
Ultrasonic enhanced synthesis of multi-walled carbon nanotube supported Pt-Co bimetallic nanoparticles as catalysts for the oxygen reduction reaction
RSC advances, Vol.5(41), pp.32685-32689
01/01/2015
Abstract
Carbon material supported bi-or tri-metallic nanoparticles were usually used to replace noble metals, such as platinum, for improving catalytic performance and reducing the cost. In this paper, a carboxylate-functionalized multi-walled carbon nanotube supported bimetallic platinum-cobalt nanoparticles catalyst was synthesized using a simple one-step ultrasonic method. Electrochemical experiments showed that this catalyst exhibited excellent electrocatalytic activity in acid solution for the oxygen reduction reaction. In detail, the onset potential and half-wave potential of this catalyst positively shifted compared with the commercial platinum/carbon catalyst. The as-prepared catalyst also presented a high mass activity. Additionally, it showed a four-electron reduction pathway for the oxygen reduction reaction and exhibited better stability (about 82.8% current density was maintained) than platinum/carbon during the current durability test.
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Details
- Title
- Ultrasonic enhanced synthesis of multi-walled carbon nanotube supported Pt-Co bimetallic nanoparticles as catalysts for the oxygen reduction reaction
- Creators
- Shaofang Fu - Washington State UniversityGuohai Yang - Washington State UniversityYazhou Zhou - Washington State UniversityHorng-Bin Pan - University of IdahoChien M. Wai - University of IdahoDan Du - Washington State UniversityYuehe Lin - Washington State University
- Publication Details
- RSC advances, Vol.5(41), pp.32685-32689
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Royal Soc Chemistry
- Number of pages
- 5
- Grant note
- Washington State University, USA DE-AC05-76RL01830 / DOE by Battelle; United States Department of Energy (DOE)
- Identifiers
- 99901227842401842
- Language
- English
- Resource Type
- Journal article