Hydrogen generation from NaBH4 for portable proton exchange membrane fuel cell

Bingxue Sun, Xingguo Li, Jie Zheng
{"title":"Hydrogen generation from NaBH4 for portable proton exchange membrane fuel cell","authors":"Bingxue Sun,&nbsp;Xingguo Li,&nbsp;Jie Zheng","doi":"10.1016/j.matre.2023.100248","DOIUrl":null,"url":null,"abstract":"<div><p>Sodium borohydride (NaBH<sub>4</sub>) is considered as the most potential hydrogen storage material for portable proton exchange membrane fuel cells (PEMFC) because of its high theoretical hydrogen capacity. However, the slow and poor kinetic stability of hydrogen generation from NaBH<sub>4</sub> hydrolysis limits its application. There are two main factors influencing the kinetics stability of hydrogen generation from NaBH<sub>4</sub>. One factor is that the alkaline by-products (NaBO<sub>2</sub>) of the hydrolysis reaction can increase the pH of the solution, thus inhibiting the reaction process. It mainly happens in the NaBH<sub>4</sub> solution hydrolysis system. Another factor is that the monotonous increase in reaction temperature leads to uncontrollable and unpredictable hydrolysis rates in the solid NaBH<sub>4</sub> hydrolysis system. This is due to the excess heat generated from this exothermic reaction in the initial reaction of NaBH<sub>4</sub> hydrolysis. In this perspective, we summarize the latest research progress in hydrogen generation from NaBH<sub>4</sub> and emphasize the design principles of catalysts for hydrogen generation from NaBH<sub>4</sub> solution and solid state NaBH<sub>4</sub>. The importance of carbon as catalyst support material for NaBH<sub>4</sub> hydrolysis is also highlighted.</p></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":"4 1","pages":"Article 100248"},"PeriodicalIF":0.0000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666935823001155/pdfft?md5=10a4b96c00916d6192474726fa273518&pid=1-s2.0-S2666935823001155-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"材料导报:能源(英文)","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666935823001155","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Sodium borohydride (NaBH4) is considered as the most potential hydrogen storage material for portable proton exchange membrane fuel cells (PEMFC) because of its high theoretical hydrogen capacity. However, the slow and poor kinetic stability of hydrogen generation from NaBH4 hydrolysis limits its application. There are two main factors influencing the kinetics stability of hydrogen generation from NaBH4. One factor is that the alkaline by-products (NaBO2) of the hydrolysis reaction can increase the pH of the solution, thus inhibiting the reaction process. It mainly happens in the NaBH4 solution hydrolysis system. Another factor is that the monotonous increase in reaction temperature leads to uncontrollable and unpredictable hydrolysis rates in the solid NaBH4 hydrolysis system. This is due to the excess heat generated from this exothermic reaction in the initial reaction of NaBH4 hydrolysis. In this perspective, we summarize the latest research progress in hydrogen generation from NaBH4 and emphasize the design principles of catalysts for hydrogen generation from NaBH4 solution and solid state NaBH4. The importance of carbon as catalyst support material for NaBH4 hydrolysis is also highlighted.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
利用 NaBH4 制氢,用于便携式质子交换膜燃料电池
硼氢化钠(NaBH4)因其理论氢容量高而被认为是便携式质子交换膜燃料电池(PEMFC)最具潜力的储氢材料。然而,NaBH4 水解产生氢气的过程缓慢且动力学稳定性差,这限制了它的应用。影响 NaBH4 制氢动力学稳定性的主要因素有两个。一个因素是水解反应的碱性副产物(NaBO2)会增加溶液的 pH 值,从而抑制反应过程。这主要发生在 NaBH4 溶液水解系统中。另一个因素是,在固态 NaBH4 水解体系中,反应温度的单调升高会导致无法控制和预测的水解速率。这是由于在 NaBH4 水解的初始反应中,这种放热反应产生了过多的热量。从这个角度,我们总结了 NaBH4 制氢的最新研究进展,并强调了 NaBH4 溶液和固态 NaBH4 制氢催化剂的设计原则。我们还强调了碳作为 NaBH4 水解催化剂支撑材料的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
材料导报:能源(英文)
材料导报:能源(英文) Renewable Energy, Sustainability and the Environment, Nanotechnology
CiteScore
13.00
自引率
0.00%
发文量
0
审稿时长
50 days
期刊最新文献
Outside Front Cover Contents A triboelectric nanogenerator based on a spiral rotating shaft for efficient marine energy harvesting of the hydrostatic pressure differential Synthesis of nanostructured zinc oxide and its composite with carbon dots for DSSCs applications using flexible electrode Advancements in biomass gasification research utilizing iron-based oxygen carriers in chemical looping: A review
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1