Releasing 17.8 wt% H2 from lithium borohydride ammoniate
作者： Xueli Zheng , Guotao Wu , Wen Li , Zhitao Xiong , Teng He
DOI: 10.1039/C1EE01480C
关键词:
摘要: Release of ca. 17.8 wt% hydrogen was observed from the Co-catalyzed lithium borohydride ammoniate, Li(NH3)4/3BH4 (with equivalent protic and hydridic atoms, composed solid Li(NH3)BH4 liquid Li(NH3)2BH4), in temperature range 135 to 250 °C a closed vessel. The low NH3 equilibrium vapor pressure ammoniate vessel results retention majority vicinity LiBH4, thus, creates an environment favorable for direct dehydrogenation rather than deammoniation. is two-step process forming intermediates Li4BN3H10 LiBH4. final residue mixture BN Li3BN2. presence nanosized Co catalyst effectively promote release.
rsc.org
sci-hub.se 参考文章(64)
F. E. Pinkerton, J. F. Herbst, Tetragonal I41/amd crystal structure of Li3BN2 from dehydrogenated Li-B-N-H Journal of Applied Physics. ,vol. 99, pp. 113523- ,(2006) , 10.1063/1.2202236
YH Guo, XB Yu, L Gao, GL Xia, ZP Guo, Hua-Kun Liu, None, Significantly improved dehydrogenation of LiBH4 destabilized by TiF3 Energy and Environmental Science. ,vol. 3, pp. 465- 470 ,(2010) , 10.1039/B915779D
H. E. Kissinger, Reaction Kinetics in Differential Thermal Analysis Analytical Chemistry. ,vol. 29, pp. 1702- 1706 ,(1957) , 10.1021/AC60131A045
W J Zhang, Y M Chong, I Bello, S T Lee, Nucleation, growth and characterization of cubic boron nitride (cBN) films Journal of Physics D. ,vol. 40, pp. 6159- 6174 ,(2007) , 10.1088/0022-3727/40/20/S03
Jacques van Wonterghem, Steen Mørup, Christian J. W. Koch, Stuart W. Charles, Steven Wells, Formation of ultra-fine amorphous alloy particles by reduction in aqueous solution Nature. ,vol. 322, pp. 622- 623 ,(1986) , 10.1038/322622A0
Yong Shen Chua, Guotao Wu, Zhitao Xiong, Teng He, Ping Chen, Calcium Amidoborane Ammoniate-Synthesis, Structure, and Hydrogen Storage Properties Chemistry of Materials. ,vol. 21, pp. 4899- 4904 ,(2009) , 10.1021/CM9020222
Y PEI, P GUO, M QIAO, H LI, S WEI, H HE, K FAN, The modification effect of Fe on amorphous CoB alloy catalyst for chemoselective hydrogenation of crotonaldehyde Journal of Catalysis. ,vol. 248, pp. 303- 310 ,(2007) , 10.1016/J.JCAT.2007.03.024
F.E. Pinkerton, M.S. Meyer, Reversible hydrogen storage in the lithium borohydride-calcium hydride coupled system Journal of Alloys and Compounds. ,vol. 464, ,(2008) , 10.1016/J.JALLCOM.2007.09.125
Richard J. Keaton, Johanna M. Blacquiere, R. Tom Baker, Base metal catalyzed dehydrogenation of ammonia-borane for chemical hydrogen storage. Journal of the American Chemical Society. ,vol. 129, pp. 1844- 1845 ,(2007) , 10.1021/JA066860I
S Amendola, A safe, portable, hydrogen gas generator using aqueous borohydride solution and Ru catalyst International Journal of Hydrogen Energy. ,vol. 25, pp. 969- 975 ,(2000) , 10.1016/S0360-3199(00)00021-5