文献类型：期刊文献

英文题名：Catalytical enhancement on hydrogen production from LiAlH4 by Fe-Fe2O3 addition

作者：Shen, Xiaobo[1,2];Zhang, Xuening[1];Xiao, Qiuping[3];Liu, Haifeng[4]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[3]Shanghai Res Inst Chem Ind, 2666 West Guangfu Rd, Shanghai 200062, Peoples R China;[4]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, POB 272, Shanghai 200237, Peoples R China

年份：2022

卷号：47

期号：38

起止页码：16964

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20221812056748);WOS:【SCI-EXPANDED(收录号:WOS:000799077700006)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 22078095) and the Shanghai Science and Technology Committee (Grant No.19QB1402800, 20dz1200903 and 21QC1400400) .

语种：英文

外文关键词：Hydrogen energy; Metal hydrides; Thermal behavior; Kinetic parameters; Fe-Fe < sub > 2 <; sub > O < sub > 3 <; sub > catalysts

摘要：Hydrogen storage technology plays an important role on the development of hydrogen fuel cell and lithium aluminum hydride is a powerful candidate for solid-state hydrogen storage materials. However, the high stability and slow dehydrogenation kinetics of LiAlH4 hinder its application. In this paper, the two-step thermal decomposition properties of LiAlH4 with and without Fe-Fe2O3 catalysts are investigated. According to the master plots, the model of mample power law (Pn) and nucleation and growth (An) are the optimal mechanism functions for the two-step decomposition of LiAlH4, respectively. After doping catalysts, the activation energies decrease significantly. The theoretical and optimized kinetic method are consistent with each other on activation energy. And the latter can also yield other kinetic parameters for a more comprehensive kinetic modelling of LiAlH4 decom-position. Furthermore, Fe-Al2O3 and Fe-Al intermetallics generated during dehydroge-nation might significantly improve the hydrogen release properties of LiAlH4. (c) 2022 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.