Stability of Aluminum Hydride Etherates and Its Solid-State Conversion to Alpha-Aluminum Hydride

Zhaoyang Zhu; Aifeng Jiang; Debin Xia; Ping Wang; Kaifeng Lin; Jizhuang Fan; Ruiqing Fan; Yulin Yang

doi:10.11944/j.issn.1000-0518.2019.09.190032

Stability of Aluminum Hydride Etherates and Its Solid-State Conversion to Alpha-Aluminum Hydride

Zhaoyang Zhu
, Aifeng Jiang
, Debin Xia
, Ping Wang
, Kaifeng Lin
, Jizhuang Fan^*
, Ruiqing Fan
, Yulin Yang^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Science and Technology on Aerospace Chemical Power Laboratory

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The problem of whether α-AlH₃ crystallized by aluminum hydride etherates (A1H₃ • raEt₂O) stored for varying time is systematically studied. First, A1H₃ •raEt₂O was prepared by a conventional method and stored under a nitrogen atmosphere for 1 to 20 days, and then α-AlH₃ was prepared by a solid phase and vacuum crystallizing technique based on the AlH₃^-raEt₂O. X R D, TGA and SEM analysis show that the ether composition gradually decreases during storage and α-AlH₃ with higher purity can be prepared within 10 days of storage. However, after 10 days, γ-AlH₃ with smaller particle size appeared. Finally, we confirm that the amount of ether in AlH₃^-raEt₂O is directly related to the quality of prepared α-AlH₃. Another highlight of this paper is the abandonment of the toxic reagent toluene used in conventional processes.

Translated title of the contribution	氢化铝乙醚配合物的稳定性及其固相转晶制备三氢化铝
Original language	English
Pages (from-to)	1069-1075
Number of pages	7
Journal	Chinese Journal of Applied Chemistry
Volume	36
Issue number	9
DOIs	https://doi.org/10.11944/j.issn.1000-0518.2019.09.190032
State	Published - Sep 2019
Externally published	Yes

Keywords

aluminum hydride
preparation
storage

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@article{cced4f0355744c86956551d46bbb84f5,

title = "Stability of Aluminum Hydride Etherates and Its Solid-State Conversion to Alpha-Aluminum Hydride",

abstract = "The problem of whether α-AlH3 crystallized by aluminum hydride etherates (A1H3 • raEt2O) stored for varying time is systematically studied. First, A1H3 •raEt2O was prepared by a conventional method and stored under a nitrogen atmosphere for 1 to 20 days, and then α-AlH3 was prepared by a solid phase and vacuum crystallizing technique based on the AlH3-raEt2O. X R D, TGA and SEM analysis show that the ether composition gradually decreases during storage and α-AlH3 with higher purity can be prepared within 10 days of storage. However, after 10 days, γ-AlH3 with smaller particle size appeared. Finally, we confirm that the amount of ether in AlH3-raEt2O is directly related to the quality of prepared α-AlH3. Another highlight of this paper is the abandonment of the toxic reagent toluene used in conventional processes.",

keywords = "aluminum hydride, preparation, storage",

author = "Zhaoyang Zhu and Aifeng Jiang and Debin Xia and Ping Wang and Kaifeng Lin and Jizhuang Fan and Ruiqing Fan and Yulin Yang",

year = "2019",

month = sep,

doi = "10.11944/j.issn.1000-0518.2019.09.190032",

language = "英语",

volume = "36",

pages = "1069--1075",

journal = "Chinese Journal of Applied Chemistry",

issn = "1000-0518",

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number = "9",

}

TY - JOUR

T1 - Stability of Aluminum Hydride Etherates and Its Solid-State Conversion to Alpha-Aluminum Hydride

AU - Zhu, Zhaoyang

AU - Jiang, Aifeng

AU - Xia, Debin

AU - Wang, Ping

AU - Lin, Kaifeng

AU - Fan, Jizhuang

AU - Fan, Ruiqing

AU - Yang, Yulin

PY - 2019/9

Y1 - 2019/9

N2 - The problem of whether α-AlH3 crystallized by aluminum hydride etherates (A1H3 • raEt2O) stored for varying time is systematically studied. First, A1H3 •raEt2O was prepared by a conventional method and stored under a nitrogen atmosphere for 1 to 20 days, and then α-AlH3 was prepared by a solid phase and vacuum crystallizing technique based on the AlH3-raEt2O. X R D, TGA and SEM analysis show that the ether composition gradually decreases during storage and α-AlH3 with higher purity can be prepared within 10 days of storage. However, after 10 days, γ-AlH3 with smaller particle size appeared. Finally, we confirm that the amount of ether in AlH3-raEt2O is directly related to the quality of prepared α-AlH3. Another highlight of this paper is the abandonment of the toxic reagent toluene used in conventional processes.

AB - The problem of whether α-AlH3 crystallized by aluminum hydride etherates (A1H3 • raEt2O) stored for varying time is systematically studied. First, A1H3 •raEt2O was prepared by a conventional method and stored under a nitrogen atmosphere for 1 to 20 days, and then α-AlH3 was prepared by a solid phase and vacuum crystallizing technique based on the AlH3-raEt2O. X R D, TGA and SEM analysis show that the ether composition gradually decreases during storage and α-AlH3 with higher purity can be prepared within 10 days of storage. However, after 10 days, γ-AlH3 with smaller particle size appeared. Finally, we confirm that the amount of ether in AlH3-raEt2O is directly related to the quality of prepared α-AlH3. Another highlight of this paper is the abandonment of the toxic reagent toluene used in conventional processes.

KW - aluminum hydride

KW - preparation

KW - storage

UR - https://www.scopus.com/pages/publications/85172686305

U2 - 10.11944/j.issn.1000-0518.2019.09.190032

DO - 10.11944/j.issn.1000-0518.2019.09.190032

M3 - 文章

AN - SCOPUS:85172686305

SN - 1000-0518

VL - 36

SP - 1069

EP - 1075

JO - Chinese Journal of Applied Chemistry

JF - Chinese Journal of Applied Chemistry

IS - 9

ER -

Stability of Aluminum Hydride Etherates and Its Solid-State Conversion to Alpha-Aluminum Hydride

Abstract

Keywords

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