Sodium borohydride regeneration via direct hydrogen transformation of sodium metaborate tetrahydrate

时间:2018-07-31作者:浏览量:845


Sodium borohydride regeneration via direct hydrogen transformation of sodium metaborate tetrahydrate

作者:Zhong, H (Zhong, Hao)[1 ]; Ouyang, LZ (Ouyang, Liuzhang)[1,2 ]; Liu, JW (Liu, Jiangwen)[1 ]; Peng, CH (Peng, Chenghong)[1 ]; Zhu, XK (Zhu, Xiaoke)[1 ]; Zhu, WH (Zhu, Weiheng)[1 ]; Fang, F (Fang, Fang)[3 ]; Zhu, M (Zhu, Min)[1 ]

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JOURNAL OF POWER SOURCES


卷:390

页:71-77

DOI:10.1016/j.jpowsour.2018.04.037

出版年:JUN 30 2018

文献类型:Article

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摘要

Irreversibility negatively impacts the application of NaBH4 hydrolysis for hydrogen generation. Byproduct regeneration is key to solving this issue. In this work, the direct byproduct of aqueous NaBH4 hydrolysis, NaBO2 center dot 4H(2)O, is reacted with Mg2Si to regenerate NaBH4 via ball milling at room temperature under an argon atmosphere. In this process, the H- in NaBH4 is exclusively from the H+ in NaBO2 center dot 4H(2)O. The regenerated NaBH4, with a maximum yield of 74%, has the same physicochemical properties as a commercial sample. We also demonstrate that Mg2Si reacts with NaBO2 center dot 4H(2)O to generate NaBO2 center dot 4H(2)O, followed by a direct reaction between the residual Mg2Si and NaBO2 center dot 4H(2)O to produce NaBH4. The energy efficiency of this method is approximately 40%.

作者信息

通讯作者地址:Ouyang, LZ (通讯作者)

显示更多South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址:Fang, F (通讯作者)
显示更多Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China.


地址:

显示更多[ 1 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
      [ 2 ] Key Lab Fuel Cell Technol Guangdong Prov, China Australia Joint Lab Energy & Environm Mat, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 3 ] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China


电子邮件地址:meouyang@scut.edu.cn; f_fang@fudan.edu.cn

基金资助致谢
基金资助机构授权号
Foundation for Innovative Research Groups of the National Natural Science Foundation of China 
NSFC51621001 
National Natural Science Foundation of China Projects 
51431001 
51771075 
Colleges Pearl River Scholar Funded Scheme  
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出版商

ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS

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