Abstract: Ammonia borane (AB, NH3BH3) is nontoxic easily transportable solid hydride with high stability in air. In this work we demonstrate that simple mixing of AB with TiO2 (anatase) allows for hydrogen gas to be generated at temperatures as low as 80 °C. No losses of hydrogen have been observed during preparation of hydride-containing composites. It was shown that the adsorption of water vapor on TiO2 and the increase of TiO2 loading considerably accelerated the rate of AB decomposition. The experimentally observed formation of B–O chemical bonds and the elevated heat emission suggest strong interaction of AB with the adsorbed water species on TiO2 surface. It has been found that this interaction proceeds at a higher rate comparing with binary AB/H2O systems. The heat being released in the process is thought to contribute to overcoming the activation barrier in the dehydrogenation of ammonia borane to produce hydrogen gas.

Cite: Komova O.V. , Simagina V.I. , Kayl N.L. , Odegova G.V. , Netskina O.V. , Chesalov Y.A. , Ozerova A.M.
Improved Low-Temperature Hydrogen Generation from NH3BH3 and TiO2 Composites Pretreated with Water
International Journal of Hydrogen Energy. 2013. V.38. N15. P.6442-6449. DOI: 10.1016/j.ijhydene.2013.03.074 WOS Scopus РИНЦ ANCAN OpenAlex

Dates:

Submitted:	Jan 25, 2013
Accepted:	Mar 14, 2013
Published online:	Apr 9, 2013
Published print:	May 20, 2013

Identifiers:

Web of science:	WOS:000319233000019
Scopus:	2-s2.0-84877741570
Elibrary:	20428200
Chemical Abstracts:	2013:564171
Chemical Abstracts (print):	160:162081
OpenAlex:	W2037745478

Citing:

DB	Citing
Web of science	18
Scopus	19
Elibrary	20
OpenAlex	20

Altmetrics: