Thermally-assisted milling and hydrogenolysis for synthesizing ultrafine MgH2 with destabilized thermodynamics
作者
Huang, LJ (Huang, L. J.) 1
Shi, ST (Shi, S. T.) 1
Cui, J (Cui, J.) 1
Liu, JW (Liu, J. W.) 1
Ouyang, LZ (Ouyang, L. Z.) 1
Wang, H (Wang, H.) 1
查看 Web of Science ResearcherID 和 ORCID (由 Clarivate 提供) NANOTECHNOLOGY
卷32
期28
文献号285402
DOI10.1088/1361-6528/abf20e
出版时间JUL 9 2021
文献类型Article
摘要
A novel process has been developed to synthesize MgH2 nanoparticles by combining ball milling and thermal hydrogenolysis of di-n-butylmagnesium (C4H9)(2)Mg, denoted as MgBu2. With the aid of mechanical impact, the hydrogenolysis temperature of MgBu2 in heptane and cyclohexane solution was considerably lowered down to 100 degrees C, and the MgH2 nanoparticles with an average particle size of ca. 8.9 nm were obtained without scaffolds. The nano-size effect of the MgH2 nanoparticles causes a notable decrease in the onset dehydrogenation temperature of 225 degrees C and enthalpy of 69.78 kJ mol(-1) center dot H-2. This thermally-assisted milling and hydrogenolysis process may also be extended for synthesizing other nanomaterials.
关键词
作者关键词hydrogen storage materialsMgH2thermally-assisted millinghydrogenolysisnanoparticles
作者信息
通讯作者地址
Wang, H.
(通讯作者)
South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Peoples R China
地址
1 South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Peoples R China
电子邮件地址mehwang@scut.edu.cn
类别/分类
研究方向Science & Technology - Other TopicsMaterials SciencePhysics