SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2024, Vol. 71 ›› Issue (7): 225-234.DOI: 10.1016/j.cjche.2024.02.011

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Hydrogen release of NaBH4 below 60 °C with binary eutectic mixture of xylitol and erythritol additive

Yugang Shu1, Jiaguang Zheng1,2, Chengguo Yan1, Ao Xia1, Meiling Lv1, Zhenxuan Ma1, Zhendong Yao3   

  1. 1. School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China;
    3. College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China
  • Received:2023-11-29 Revised:2024-01-24 Online:2024-08-30 Published:2024-07-28
  • Contact: Jiaguang Zheng,E-mail:jgzheng@just.edu.cn;Zhendong Yao,E-mail:zhendongyao@foxmail.com
  • Supported by:
    The authors appreciatively acknowledge the financial support from the National Natural Science Foundation of China (52201255), the Natural Science Foundation of Jiangsu Province (BK20210884) and the Innovation, and Entrepreneurship Program of Jiangsu Province (JSSCBS20211007).

Hydrogen release of NaBH4 below 60 °C with binary eutectic mixture of xylitol and erythritol additive

Yugang Shu1, Jiaguang Zheng1,2, Chengguo Yan1, Ao Xia1, Meiling Lv1, Zhenxuan Ma1, Zhendong Yao3   

  1. 1. School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China;
    3. College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China
  • 通讯作者: Jiaguang Zheng,E-mail:jgzheng@just.edu.cn;Zhendong Yao,E-mail:zhendongyao@foxmail.com
  • 基金资助:
    The authors appreciatively acknowledge the financial support from the National Natural Science Foundation of China (52201255), the Natural Science Foundation of Jiangsu Province (BK20210884) and the Innovation, and Entrepreneurship Program of Jiangsu Province (JSSCBS20211007).

Abstract: NaBH4 was widely regarded as a low-cost hydrogen storage material due to its high-mass hydrogen capacity of approximately 10.8% (mass) and high volumetric hydrogen capacity of around 115 g·L–1. However, it exhibits strong stability and requires temperatures above 500 °C for hydrogen release in practical applications. In this study, two polyhydric alcohols, xylitol and erythritol (XE), were prepared as a binary eutectic sugar alcohol through a grinding-melting method. This binary eutectic sugar alcohol was used as a proton-hydrogen carrier to destabilize NaBH4. The 19NaBH4-16XE composite material prepared by ball milling could start releasing hydrogen at 57.5 °C, and the total hydrogen release can reach over 88.8% (4.45% (mass)) of the theoretical capacity. When the 19NaBH4-16XE composite was pressed into solid blocks, the volumetric hydrogen capacity of the block-shaped composite could reach 67.2 g·L–1. By controlling the temperature, the hydrogen desorption capacity of the NaBH4-XE composite material was controllable, which has great potential for achieving solid-state hydrogen production from NaBH4.

Key words: Hydrogen, Desorption, Binary mixture, NaBH4, Xylitol, Erythritol

摘要: NaBH4 was widely regarded as a low-cost hydrogen storage material due to its high-mass hydrogen capacity of approximately 10.8% (mass) and high volumetric hydrogen capacity of around 115 g·L–1. However, it exhibits strong stability and requires temperatures above 500 °C for hydrogen release in practical applications. In this study, two polyhydric alcohols, xylitol and erythritol (XE), were prepared as a binary eutectic sugar alcohol through a grinding-melting method. This binary eutectic sugar alcohol was used as a proton-hydrogen carrier to destabilize NaBH4. The 19NaBH4-16XE composite material prepared by ball milling could start releasing hydrogen at 57.5 °C, and the total hydrogen release can reach over 88.8% (4.45% (mass)) of the theoretical capacity. When the 19NaBH4-16XE composite was pressed into solid blocks, the volumetric hydrogen capacity of the block-shaped composite could reach 67.2 g·L–1. By controlling the temperature, the hydrogen desorption capacity of the NaBH4-XE composite material was controllable, which has great potential for achieving solid-state hydrogen production from NaBH4.

关键词: Hydrogen, Desorption, Binary mixture, NaBH4, Xylitol, Erythritol