Growth kinetics of MgH2 nanocrystallites prepared by ball milling
Growth kinetics of MgH2 nanocrystallites prepared by ball milling
复制标题
球磨制备MgH2纳米晶的生长动力学
DOI:
10.1016/j.jmst.2020.01.063
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发表时间:
2020-08
影响因子:
10.9
通讯作者:
Zhang Qingan
中科院分区:
文献类型:
--
作者:
Zhou Caiqin;Peng Yayu;Zhang Qingan
MgH2is one of promising hydrogen storage materials due to its high hydrogen capacity of 7.6 wt%. However, MgH2nanocrystallites easily grow up during hydrogen absorption―desorption cycling, leading to deterioration of hydrogen storage properties. To clarify the growth kinetics of MgH2crystallites, the growth characteristics of MgH2nanocrystallites are investigated in this work. The growth exponents of MgH2nanocrystallites in pure MgH2and MgH2―10 wt% Pr3Al11samples are evaluated to ben= 5 andn= 6, respectively. Meanwhile, their activation energies for crystallite growth are also determined to be 109.2 and 144.2 kJ/mol, respectively. The increase of growth exponent and rise of activation energy for crystallite growth in MgH2―10 wt% Pr3Al11composite are ascribed to the presence of nano-sized Pr3Al11phase.
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影响因子:
3.6
作者:
R. Würschum;S. Herth;U. Brossmann
通讯作者:
R. Würschum;S. Herth;U. Brossmann
影响因子:
9.4
作者:
Malow, TR;Koch, CC
通讯作者:
Koch, CC
DOI:
10.1023/a:1008663804495
发表时间:
1997-11-01
期刊:
INTERFACE SCIENCE
影响因子:
--
作者:
Schonfelder, B;Wolf, D;Furtkamp, M
通讯作者:
Furtkamp, M
影响因子:
5.2
作者:
Alexandre R. Bueno;Renata F.M. Oman;Paula M. Jardim;Nicolás A. Rey;R. D. de Avillez
通讯作者:
Alexandre R. Bueno;Renata F.M. Oman;Paula M. Jardim;Nicolás A. Rey;R. D. de Avillez
影响因子:
6
作者:
Pang Yuepeng;Li Qian
通讯作者:
Li Qian