Catalytic effect of (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 on hydrogen   storage properties of ultrafine magnesium particles

doi:10.1039/c7ra05461k

CORC > 北京大学 > 化学与分子工程学院

	Catalytic effect of (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 on hydrogen storage properties of ultrafine magnesium particles
	Liu, Peng ; Ma, Xiujuan ; Xie, Xiubo ; Li, Xingguo ; Liu, Tong
刊名	RSC ADVANCES
	2017
关键词	MG-BASED NANOCOMPOSITE SORPTION KINETICS NANOPARTICLES COMPOSITE HYDRIDE ALLOYS NB2O5 PHASE CO
DOI	10.1039/c7ra05461k
英文摘要	In order to improve hydrogen storage properties of magnesium, (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 (TiMn2 type) alloy particles have been added into magnesium ultrafine particles produced by a hydrogen plasma-metal reaction approach by ball milling. The (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 particles are uniformly dispersed on the surface of magnesium. The addition of (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 alloy improves both the hydrogen storage capacity and kinetics of magnesium. The magnesium-5 wt% (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 composite can absorb 6.00 wt% H-2 within 60 minutes at 523 K and desorb 6.00 wt% H-2 within 15 minutes at 623 K. With the increase of (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1, the hydrogenation and dehydrogenation kinetics of the composites improve. The apparent activation energies of magnesium-x wt% (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 (x = 5, 10, 30) composites for hydrogen absorption and desorption are 67.52, 65.80, 60.99 kJ mol(-1) and 121.37, 116.68, 77.25 kJ mol(-1), respectively. The enhanced hydrogen storage capacities and kinetics can be attributed to the effective catalysis of the (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 alloy and ultrafine size of magnesium particles.; National Natural Science Foundation of China and Baosteel Group Corporation [U1560106]; Aeronautical Science Foundation of China [2016ZF51050]; Scientific Research Foundation for the Returned Overseas Chinese Scholars (State Education Ministry); SCI(E); ARTICLE; 55; 34538-34547; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475911]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Liu, Peng,Ma, Xiujuan,Xie, Xiubo,et al. Catalytic effect of (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 on hydrogen storage properties of ultrafine magnesium particles[J]. RSC ADVANCES,2017.
APA	Liu, Peng,Ma, Xiujuan,Xie, Xiubo,Li, Xingguo,&Liu, Tong.(2017).Catalytic effect of (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 on hydrogen storage properties of ultrafine magnesium particles.RSC ADVANCES.
MLA	Liu, Peng,et al."Catalytic effect of (Ti0.85Zr0.15)(1.05)Mn1.2Cr0.6V0.1Cu0.1 on hydrogen storage properties of ultrafine magnesium particles".RSC ADVANCES (2017).