4.8 Article

Hydrogen generation from lithium borohydride solution over nano-sized platinum dispersed on LiCoO2

期刊

JOURNAL OF POWER SOURCES
卷 155, 期 2, 页码 325-328

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ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2005.04.019

关键词

lithium borohydride; chemical hydride; hydrogen generation; catalyst; nano-pt; high-resolution transmission electron microscopy

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A stoichiometric amount of hydrogen was generated by catalytic hydrolysis reaction of lithium borohydride solution over nano-sized platinum dispersed on LiCoO2 (Pt-LiCoO2). The catalyst was characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and energy dispersive X-ray spectroscopy (EDS). Analysis showed that the particles size of platinum was about 2 run and they are dispersed on LiCoO2. The H-2 generation rate was expressed by the zero order rate equation and increased with an increase of the catalyst content. Compared with a mixture of Pt and LiCoO2, catalytic properties of Pt-LiCoO2 was superior. The reason proposed for the higher catalytic activity of Pt-LiCoO2 was the small platinum particle size. (c) 2005 Elsevier B.V. All rights reserved.

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