title: Facile and one-pot synthesis of uniform PtRu nanoparticles on polydopamine-modified multiwalled carbon nanotubes for direct methanol fuel cell application.
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.
authors.affiliation: 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.
authors.forename: Fengxia
authors.initials: F
authors.lastname: Chen
authors.affiliation: College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Junkai
authors.initials: J
authors.lastname: Ren
authors.affiliation: College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: He
authors.affiliation: E.N.T, Renmin Hospital of Henan Province, Zhengzhou 450000, China. Electronic address: liujun64@126.com.
authors.forename: Jun
authors.initials: J
authors.lastname: Liu
authors.affiliation: College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: rsong@ucas.ac.cn.
authors.forename: Rui
authors.initials: R
authors.lastname: Song
keywords: Direct methanol fuel cell; Electrocatalyst; One-pot synthesis; Polydopamine; PtRu nanoparticles