期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 39, 期 12, 页码 6729-6736出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2014.01.200
关键词
Pt nanoparticles; MOF-5; Nanoporous carbon; Direct borohydride-hydrogen peroxide fuel cell; Anode electrocatalyst
资金
- National Natural Science Foundation of China [51272221, 51072173, 21203161]
- Natural Science Foundation of Hunan Province, China [13JJ4051]
- Scientific Research Fund of Hunan Provincial Education Department [11A118]
The nanoporous carbon (NPC) is synthesized by carbonization of metal-organic framework-5 (MOP-5, [Zn4O(bdc)(3)], bdc = 1,4-benzenedicarboxylate) with furfuryl alcohol (FA) as carbon source and used as the carrier of the anode catalyst for the direct borohydride-hydrogen peroxide fuel cell (DBHFC). Then the NPC-supported Pt anode catalyst (Pt/NPC) is firstly prepared by a modified NaBH4 reduction method. The obtained Pt/NPC catalyst is characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive spectrometry (EDS), cyclic voltammetry, chronopotentiometry, chronoamperometry and fuel cell test. The results show that the Pt/NPC is made up of the spherical Pt nanoparticles which disperse uniformly on the surface of the NPC with average size 2.38 nm, and exhibits 36.38% higher current density for directly borohydride oxidation than the Vulcan XC-72 carbon supported Pt (Pt/XC-72). Besides, the DBHFC using the Pt/NPC as anode electrocatalyst shows the maximum power density as high as 54.34 mW cm(-2) at 25 degrees C. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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