Nanoporous carbon supported platinum-copper nanocomposites as anode catalysts for direct borohydride-hydrogen peroxide fuel cell

被引：30
|
作者：
Liu, Jing [1 ]
Zhao, Qinglan [1 ]
Chen, Shuhua [1 ]
Yi, Lanhua [1 ]
Wang, Xianyou [1 ]
Wei, Wei [1 ]
机构：
[1] Xiangtan Univ, Key Lab Environm Friendly Chem & Applicat, Hunan Prov Key Lab Electrochem Energy Storage & C, Minist Educ,Sch Chem, Xiangtan 411105, Hunan, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2015年 / 171卷
基金：
中国国家自然科学基金;
关键词：
direct borohydride-hydrogen peroxide fuel cell; anode electrocatalyst; bimetallic catalyst; nanoporous carbon; metal-organic framework-5; PT-CU NANOPARTICLES; OXIDATION REACTION; POROUS CARBON; ELECTROOXIDATION; PERFORMANCE; GRAPHENE; CATHODE; ELECTROCATALYSTS; ELECTRODES; METHANOL;
D O I：
10.1016/j.electacta.2015.05.002
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Nanoporous carbon (NPC) supported Pt-Cu nanocomposites (PtxCu/NPC) with different Pt/Cu molar ratios have been successfully synthesized via NaBH4 reduction method and used as anode catalysts for direct borohydride-hydrogen peroxide fuel cell (DBHFC). The as-synthesized PtxCu/NPC electrocatalysts are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), cyclic voltammetry (CV), chronoamperometry (CA), rotating disc electrode (RDE) and fuel cell test. It has been found that the PtCu nanoparticles are uniformly dispersed on the surface of the NPC support with average size of about 2.3 nm. Besides, the PtxCu/NPC catalysts show higher activities for borohydride oxidation than that of monometallic Pt/NPC and Vulcan XC-72 carbon supported Pt2Cu (Pt2Cu/XC-72) catalysts. Especially, the DBHFC equipped with Pt2Cu/NPC as anode catalyst shows the maximum power density of 89 mW cm(-2) at 25 degrees C. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：96 / 104
页数：9
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