Journal article
Ultrasonic-assisted synthesis of carbon nanotube supported bimetallic Pt-Ru nanoparticles for effective methanol oxidation
Journal of materials chemistry. A, Materials for energy and sustainability, Vol.3(16), pp.8459-8465
01/01/2015
Abstract
In this paper, we demonstrate a facile and one-step ultrasonic method to synthesize a carboxylate functionalized multi-walled carbon nanotube supported bimetallic platinum ruthenium nanoparticle (Pt-Ru/c-MWNT) catalyst. The results show that the atomic Pt-Ru ratio is approximately 1 : 1, and the Pt mass loading in the catalyst is 8%. In addition, Pt-Ru nanoparticles with bimetallic structure, ultrasmall size (1.9 nm), and uniform distribution were well-dispersed onto the surface of c-MWNTs, which exhibit enhanced electrocatalytic performance toward methanol oxidation. It is found that this catalyst has a much higher electrochemically active surface area (ECSA) (133.2 m(2) g(Pt)(-1)) and current density for methanol oxidation (1236.0 mA mg(Pt)(-1)) than those of commercial Pt/C (20 wt%) (55.6 m(2) g(Pt)(-1), 214.2 mA mg(Pt)(-1)). Furthermore, the oxidation current density of the Pt-Ru/c-MWNT catalyst at 10 000 s is 22.5 mA mg(Pt)(-1), which indicates a long-term high electrocatalytic activity of the Pt-Ru/c-MWNT catalyst for methanol oxidation in acid media.
Metrics
1 Record Views
Details
- Title
- Ultrasonic-assisted synthesis of carbon nanotube supported bimetallic Pt-Ru nanoparticles for effective methanol oxidation
- Creators
- Yazhou Zhou - Washington State UniversityGuohai Yang - Washington State UniversityHorng-Bin Pan - University of IdahoChengzhou Zhu - Washington State UniversityShaofang Fu - Washington State UniversityQiurong Shi - Washington State UniversityDan Du - Washington State UniversityXiaonong Cheng - Jiangsu UniversityJuan Yang - Zhanjiang Experimental StationChien M. Wai - University of IdahoYuehe Lin - Washington State University
- Publication Details
- Journal of materials chemistry. A, Materials for energy and sustainability, Vol.3(16), pp.8459-8465
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Royal Soc Chemistry
- Number of pages
- 7
- Grant note
- 50902061 / National Science Foundation of China; National Natural Science Foundation of China (NSFC) CXZZ13_0664 / Scientific and Technical Innovation Project for Graduate Students WSU start-up grant
- Identifiers
- 99901227637401842
- Language
- English
- Resource Type
- Journal article