Facile synthesis of anhydrous Li2B12H12 with high purity by solvent-free method

Liqing He; Huaiyu Shao; Michael Felderhoff; Hai Wen Li; Xiangnan Li; Qing Zhu; Dehui Zhang; Dong Wu; Yanda Fu; Yonghong Deng; Zhouguang Lu

doi:10.1016/j.ica.2017.05.025

Facile synthesis of anhydrous Li₂B₁₂H₁₂ with high purity by solvent-free method

Liqing He, Huaiyu Shao, Michael Felderhoff, Hai Wen Li, Xiangnan Li, Qing Zhu, Dehui Zhang, Dong Wu, Yanda Fu, Yonghong Deng, Zhouguang Lu

Kyushu University Platform of Inter/Transdisciplinary Energy Research

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

8 Citations (Scopus)

Abstract

This work is aimed to synthesize anhydrous Li₂B₁₂H₁₂ with high purity via solvent-free reaction between solid state reagents LiBH₄ and B₁₀H₁₄. The reaction is conducted respectively in open system and sealed system for comparison. It is observed to experience three thermodynamic steps: (1) melting of B₁₀H₁₄ at 103 °C, (2) phase transition of LiBH₄ at 118 °C and (3) Li₂B₁₂H₁₂ formation at 135 °C. With appropriate heat treatment at 180 °C for 2 h, Li₂B₁₂H₁₂ with purity high as 93% is obtained in open system of 2LiBH₄ + 1.4B₁₀H₁₄ with excess B₁₀H₁₄. Sealed system reacting at approximate even optimized conditions is unavailable to produce such high purity of Li₂B₁₂H₁₂. Chemical equilibrium confines the sufficient interaction between LiBH₄ and B₁₀H₁₄ in sealed system but it does not do in open system.

Original language	English
Pages (from-to)	147-151
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	464
DOIs	https://doi.org/10.1016/j.ica.2017.05.025
Publication status	Published - 2017

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.ica.2017.05.025

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title = "Facile synthesis of anhydrous Li2B12H12 with high purity by solvent-free method",

abstract = "This work is aimed to synthesize anhydrous Li2B12H12 with high purity via solvent-free reaction between solid state reagents LiBH4 and B10H14. The reaction is conducted respectively in open system and sealed system for comparison. It is observed to experience three thermodynamic steps: (1) melting of B10H14 at 103 °C, (2) phase transition of LiBH4 at 118 °C and (3) Li2B12H12 formation at 135 °C. With appropriate heat treatment at 180 °C for 2 h, Li2B12H12 with purity high as 93% is obtained in open system of 2LiBH4 + 1.4B10H14 with excess B10H14. Sealed system reacting at approximate even optimized conditions is unavailable to produce such high purity of Li2B12H12. Chemical equilibrium confines the sufficient interaction between LiBH4 and B10H14 in sealed system but it does not do in open system.",

author = "Liqing He and Huaiyu Shao and Michael Felderhoff and Li, {Hai Wen} and Xiangnan Li and Qing Zhu and Dehui Zhang and Dong Wu and Yanda Fu and Yonghong Deng and Zhouguang Lu",

note = "Funding Information: This work was partially supported by the National Natural Science Foundation of China (No. 21671096), Shenzhen Key Laboratory Project (ZDSYS201603311013489) and the Natural Science Foundation of Shenzhen (No. JCYJ20150630145302231, and JCYJ20150331101823677). It was also partially supported by the SRG2016-00088-FST at University of Macau and FDCT (118/2016/A3), Macau SAR, China and previously German-Chinese Sustainable Fuel Partnership (GCSFP). Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.ica.2017.05.025",

language = "English",

volume = "464",

pages = "147--151",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Facile synthesis of anhydrous Li2B12H12 with high purity by solvent-free method

AU - He, Liqing

AU - Shao, Huaiyu

AU - Felderhoff, Michael

AU - Li, Hai Wen

AU - Li, Xiangnan

AU - Zhu, Qing

AU - Zhang, Dehui

AU - Wu, Dong

AU - Fu, Yanda

AU - Deng, Yonghong

AU - Lu, Zhouguang

N1 - Funding Information: This work was partially supported by the National Natural Science Foundation of China (No. 21671096), Shenzhen Key Laboratory Project (ZDSYS201603311013489) and the Natural Science Foundation of Shenzhen (No. JCYJ20150630145302231, and JCYJ20150331101823677). It was also partially supported by the SRG2016-00088-FST at University of Macau and FDCT (118/2016/A3), Macau SAR, China and previously German-Chinese Sustainable Fuel Partnership (GCSFP). Publisher Copyright: © 2017 Elsevier B.V.

PY - 2017

Y1 - 2017

N2 - This work is aimed to synthesize anhydrous Li2B12H12 with high purity via solvent-free reaction between solid state reagents LiBH4 and B10H14. The reaction is conducted respectively in open system and sealed system for comparison. It is observed to experience three thermodynamic steps: (1) melting of B10H14 at 103 °C, (2) phase transition of LiBH4 at 118 °C and (3) Li2B12H12 formation at 135 °C. With appropriate heat treatment at 180 °C for 2 h, Li2B12H12 with purity high as 93% is obtained in open system of 2LiBH4 + 1.4B10H14 with excess B10H14. Sealed system reacting at approximate even optimized conditions is unavailable to produce such high purity of Li2B12H12. Chemical equilibrium confines the sufficient interaction between LiBH4 and B10H14 in sealed system but it does not do in open system.

AB - This work is aimed to synthesize anhydrous Li2B12H12 with high purity via solvent-free reaction between solid state reagents LiBH4 and B10H14. The reaction is conducted respectively in open system and sealed system for comparison. It is observed to experience three thermodynamic steps: (1) melting of B10H14 at 103 °C, (2) phase transition of LiBH4 at 118 °C and (3) Li2B12H12 formation at 135 °C. With appropriate heat treatment at 180 °C for 2 h, Li2B12H12 with purity high as 93% is obtained in open system of 2LiBH4 + 1.4B10H14 with excess B10H14. Sealed system reacting at approximate even optimized conditions is unavailable to produce such high purity of Li2B12H12. Chemical equilibrium confines the sufficient interaction between LiBH4 and B10H14 in sealed system but it does not do in open system.

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JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Facile synthesis of anhydrous Li₂B₁₂H₁₂ with high purity by solvent-free method

Abstract

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