Mg/Nb复合薄膜的结构调控及其对脱氢温度的影响

doi:10.11896/j.issn.1005-023X.2018.07.006

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Abstract Two groups of Mg/Nb composite films were prepared by magnetron sputtering. The effects of Nb layer thicknesses and substrate temperature of Mg/Nb composite films on the dehydrogenation temperatures were investigated. Results showed that the Nb layers with thicknesses of 1 nm and 2 nm exhibited the superior catalytic effects, which can lower the dehydrogenation temperatures to 110 ℃ and 122 ℃, respectively. Besides, the substrate temperature of 125 ℃ during sputtering presented the vastest enhancement to the dehydrogenation performance of Mg (100 nm)/Nb (1 nm) composite film. The dehydrogenation temperature could decrease to 100 ℃. Meanwhile, the relative mechanisms and the effects of Nb layer thicknesses and substrate temperatures of Mg/Nb composite thin films on their dehydrogenation temperatures were discussed.

Key words： Mg/Nb composite film hydrogen storage Nb substrate temperature dehydrogenation

Published: 11 May 2018

CLC number:	TG139+.7
	TB34

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	Articles by authors
	HUANG Wencheng
	ZHANG Jinguo
	YUAN Jun
	LIU Jiangwen

Cite this article:

HUANG Wencheng,ZHANG Jinguo,YUAN Jun, et al. Effects of Structural Tuning on the Dehydrogenation Temperatures of Mg/Nb Composite Films[J]. Materials Reports, 2018, 32(7): 1084-1087.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.07.006 OR http://www.mater-rep.com/EN/Y2018/V32/I7/1084

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