Carbon Fiber Supported Pt-Co Electrocatalyst for Coal Electrolysis for Hydrogen Production. Issue 13 (16th August 2019)

• Record Type: Journal Article
• Authors: Yu, Ping; Peng, Ren; Jiang, Hao; Zhang, Rong; Ma, Junchao; Zhang, Jin Z.; Botte, Gerardine G.
• Is Part Of: Journal of the Electrochemical Society. Volume 166:Issue 13(2019)
• Page Start: E395
• Page End: E400
• Publication Date: 2019-08-16
• Subjects: Electrocatalysis -- Electrochemical Engineering -- Fuel Cells -- Coal electrolysis -- Hydrogen production -- Platinum-cobalt; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0521913jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Carbon fibers (CFs) supported platinum-cobalt (Pt-Co) electrocatalysts are prepared with H2 heat-treatment and used for hydrogen production by coal electrooxidation. Pt-Co alloy was formed and characterized by X-ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The results show that the electrocatalystic activity and long-time stability of Pt-Co/CFs for coal electrolysis are enhanced with the introduction of cobalt. The PtCo/CFs (1:1) catalyst exhibits better catalytic activity than PtCo/CFs (7:3) and PtCo/CFs (3:7). The strong catalytic activities of the catalysts are attributed to synergistic effect between metallic alloying and modification of surface electrons of the bimetallic Pt-Co electrocatalysts.