title: Facile Fabrication of Platinum-Cobalt Alloy Nanoparticles with Enhanced Electrocatalytic Activity for a Methanol Oxidation Reaction.
abstract: Decreasing the cost associated with platinum-based catalysts along with improving their catalytic properties is a major challenge for commercial direct methanol fuel cells. In this work, a simple and facile strategy was developed for the more efficient preparation of multi-walled carbon nanotube (MWCNT) -supported Pt/CoPt composite nanoparticles (NPs) via solution plasma sputtering with subsequent thermal annealing. Quite different from general wet synthesis methods, Pt/CoPt composite NPs were directly derived from metal wire electrodes without any additions. The obtained Pt/CoPt/MWCNTs composite catalysts exhibited tremendous improvement in the electro-oxidation of methanol in acidic media with mass activities of 1719 mA mg-1Pt. This value is much higher than that of previous reports of Pt-Co alloy and commercial Pt/C (3.16 times) because of the many active sites and clean surface of the catalysts. The catalysts showed good stability due to the special synergistic effects of the CoPt alloy. Pt/CoPt/MWCNTs can be used as a promising catalyst for direct methanol fuel cells. In addition, this solution plasma sputtering-assisted synthesis method introduces a general and feasible route for the synthesis of binary alloys.
authors.affiliation: College of Materials Science and Engineering, Nanjing Tech University, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|The Synergetic Innovation Center for Advanced Material, y, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.
authors.forename: Huihong
authors.initials: H
authors.lastname: Huang
authors.affiliation: College of Materials Science and Engineering, Nanjing Tech University, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|The Synergetic Innovation Center for Advanced Material, y, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.
authors.forename: Xiulan
authors.initials: X
authors.lastname: Hu
authors.affiliation: College of Materials Science and Engineering, Nanjing Tech University, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|The Synergetic Innovation Center for Advanced Material, y, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.
authors.forename: Jianbo
authors.initials: J
authors.lastname: Zhang
authors.affiliation: College of Materials Science and Engineering, Nanjing Tech University, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|The Synergetic Innovation Center for Advanced Material, y, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Su
authors.affiliation: College of Materials Science and Engineering, Nanjing Tech University, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|The Synergetic Innovation Center for Advanced Material, y, Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.|Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Xin-Mo-Fan Road No. 5, 210009, Nanjing, Jiangsu, China.
authors.forename: JieXu
authors.initials: J
authors.lastname: Cheng