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Facile and one-pot synthesis of uniform PtRu nanoparticles on polydopamine-modified multiwalled carbon nanotubes for direct methanol fuel cell application.

Authors
  • Chen, Fengxia1
  • Ren, Junkai2
  • He, Qian2
  • Liu, Jun3
  • Song, Rui4
  • 1 College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; Program of Chemical and Biochemical Engineering, Sino-Danish College, Chinese Academy of Sciences, Beijing 100190, China. , (China)
  • 2 College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China. , (China)
  • 3 E.N.T, Renmin Hospital of Henan Province, Zhengzhou 450000, China. Electronic address: [email protected] , (China)
  • 4 College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: [email protected] , (China)
Type
Published Article
Journal
Journal of Colloid and Interface Science
Publisher
Elsevier
Publication Date
Jul 01, 2017
Volume
497
Pages
276–283
Identifiers
DOI: 10.1016/j.jcis.2017.03.026
PMID: 28288373
Source
Medline
Keywords
License
Unknown

Abstract

A facile, environment-friendly and one-pot synthesis method for the preparation of high performance PtRu electrocatalysts on the multiwalled carbon nanotubes (MWCNTs) is reported. Herein, bimetallic PtRu electrocatalysts are deposited onto polydopamine (Pdop) - functionalized MWCNTs by mildly stirring at room temperature. Without the use of expensive chemicals or corrosive acids, this noncovalent functionalization of MWCNTs by Pdop is simple, facile and eco-friendly, and thus preserving the integrity and electronic structure of MWCNTs. Due to the well improved dispersion and the decreased size of alloy nanoparticles, the PtRu electrocatalysts on Pdop-functionalized MWCNTs show much better dispersion, higher electrochemically active surface area, and higher electrocatalytic activity for the electrooxidation of methanol in direct methanol fuel cells, compared with the conventional acid-treated MWCNTs.

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