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Ternary amide-hydride system: A study on LiAl(NH2)(4)-LiAlH4 interaction
Chua, Yong Shen1; Xiong, Zhitao2; Wu, Guotao2; Chen, Ping2
Corresponding AuthorChua, Yong Shen(yschua@usm.my) ; Xiong, Zhitao()
KeywordAmide-hydride interaction Dehydrogenation Ion migration mechanism NH3 mediation mechanism Hydrogen storage
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
2019-06-25
ISSN0925-8388
DOI10.1016/j.jallcom.2019.03.234
Volume790Pages:597-601
Funding ProjectUSM Short Term Grant[304/PKIMIA/6313210] ; Project of National Science Funds for Distinguish Young Scholars[51801197] ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology[2016YFE0118300]
Funding OrganizationUSM Short Term Grant ; USM Short Term Grant ; Project of National Science Funds for Distinguish Young Scholars ; Project of National Science Funds for Distinguish Young Scholars ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; USM Short Term Grant ; USM Short Term Grant ; Project of National Science Funds for Distinguish Young Scholars ; Project of National Science Funds for Distinguish Young Scholars ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; USM Short Term Grant ; USM Short Term Grant ; Project of National Science Funds for Distinguish Young Scholars ; Project of National Science Funds for Distinguish Young Scholars ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; USM Short Term Grant ; USM Short Term Grant ; Project of National Science Funds for Distinguish Young Scholars ; Project of National Science Funds for Distinguish Young Scholars ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS KeywordHYDROGEN STORAGE ; CHEMICAL-REACTION ; LIH ; DECOMPOSITION ; BOROHYDRIDE ; TRANSITION ; LIALH4 ; NA
AbstractLiAl(NH2)(4) is a ternary amide that readily decomposes to release ammonia at temperatures as low as similar to 90 degrees C. Owing to such instability as compared to binary amides, we hypothesize that the dehydrogenation mechanism involving ternary amide-hydride interaction would be significantly different from those of binary metal amide-hydride interaction. Therefore, in this study, interaction of LiAl(NH2)(4) and LiAlH4 has been investigated by means of mechanical milling and thermal method. It was found that dehydrogenation occurred spontaneously during the milling process and the rate of dehydrogenation increased with increasing amount of LiAlH4, suggesting an ion migration mediated dehydrogenation. As reaction progressed, the formation of Li3AlH6 as an intermediate was detected and a total of 8 equiv. of H-2 (7.5 wt%) can be released, forming LiH and AlN as the final product. In contrast, heating the homogenously ground LiAl(NH2)(4) and LiAlH4 sample resulted in the release of NH3 at low temperatures, indicating that NH3 mediation would take place in case of dehydrogenation. Further increase in temperature resulted in a rapid release of hydrogen from the interaction of the LiAl(NH)(2) and LiAlH4. It was also found that hydride with higher basicity is required to trigger amide-hydride interaction for dehydrogenation at low temperatures. (C) 2019 Elsevier B.V. All rights reserved.
Language英语
Funding OrganizationUSM Short Term Grant ; USM Short Term Grant ; Project of National Science Funds for Distinguish Young Scholars ; Project of National Science Funds for Distinguish Young Scholars ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; USM Short Term Grant ; USM Short Term Grant ; Project of National Science Funds for Distinguish Young Scholars ; Project of National Science Funds for Distinguish Young Scholars ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; USM Short Term Grant ; USM Short Term Grant ; Project of National Science Funds for Distinguish Young Scholars ; Project of National Science Funds for Distinguish Young Scholars ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; USM Short Term Grant ; USM Short Term Grant ; Project of National Science Funds for Distinguish Young Scholars ; Project of National Science Funds for Distinguish Young Scholars ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology ; Sino-Japanese Research Cooperative Program of Ministry of Science and Technology
WOS IDWOS:000464663600068
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/165603
Collection中国科学院大连化学物理研究所
Corresponding AuthorChua, Yong Shen; Xiong, Zhitao
Affiliation1.Univ Sains Malaysia, Sch Chem Sci, Usm 11800, Pulau Pinang, Malaysia
2.Chinese Acad Sci, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Chua, Yong Shen,Xiong, Zhitao,Wu, Guotao,et al. Ternary amide-hydride system: A study on LiAl(NH2)(4)-LiAlH4 interaction[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,790:597-601.
APA Chua, Yong Shen,Xiong, Zhitao,Wu, Guotao,&Chen, Ping.(2019).Ternary amide-hydride system: A study on LiAl(NH2)(4)-LiAlH4 interaction.JOURNAL OF ALLOYS AND COMPOUNDS,790,597-601.
MLA Chua, Yong Shen,et al."Ternary amide-hydride system: A study on LiAl(NH2)(4)-LiAlH4 interaction".JOURNAL OF ALLOYS AND COMPOUNDS 790(2019):597-601.
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