无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2023, Vol. 55 ›› Issue (12): 146-151.doi: 10.19964/j.issn.1006-4990.2023-0137

• 催化材料 • 上一篇    下一篇

海绵负载Co-B催化剂催化硼氢化钠水解制氢性能研究

刘啸1(), 谢镭1, 邓霁峰2, 时雨1, 郑捷2   

  1. 1.江苏集萃分子工程研究院有限公司,江苏 苏州 215500
    2.北京大学化学与分子工程学院,北京 100091
  • 收稿日期:2023-03-13 出版日期:2023-12-10 发布日期:2023-12-14
  • 作者简介:刘啸(1990— ),男,博士,工程师,主要研究方向为氢化物水解制氢催化剂及工艺研究;E-mail:liuxiao9011@126.com

Study on performance of sponge supported Co-B catalyst for hydrogen generation from catalytic hydrolysis of sodium borohydride

LIU Xiao1(), XIE Lei1, DENG Jifeng2, SHI Yu1, ZHENG Jie2   

  1. 1. Sunan Institute for Molecular Engineering,Peking University,Suzhou 215500,China
    2. College of Chemistry and Molecular Engineering,Peking University,Beijing 100091,China
  • Received:2023-03-13 Published:2023-12-10 Online:2023-12-14

摘要:

采用浸渍-还原法制备了聚乙烯醇缩甲醛(PVFM)海绵负载的Co-B/PVFM催化剂,考察了硼氢化钠浓度、氢氧化钠浓度及反应温度对其催化硼氢化钠水解制氢性能的影响。结果表明,制氢速率随硼氢化钠的浓度及反应温度的升高而增大,随氢氧化钠浓度的升高呈先增大后减小的趋势,反应活化能为29.02 kJ/mol。在连续式反应器中Co-B/PVFM催化剂催化硼氢化钠水解制氢速率可达12.0 L/min,可为1 kW的燃料电池供应氢气,并且催化活性持续100 min没有发生衰减,表现出极大的实际应用潜力。

关键词: Co-B催化剂, 硼氢化钠, 水解, 制氢

Abstract:

Polyvinyl formal(PVFM) sponge supported Co-B/PVFM catalyst was prepared by impregnation-reduction method,and the effects of sodium borohydride concentration,sodium hydroxide concentration and reaction temperature on the catalytic hydrolysis of sodium borohydride were investigated.The results showed that the hydrogen production rate was increased with the increase of sodium borohydride concentration and reaction temperature,and with the increase of sodium hydroxide concentration,the hydrogen production rate was firstly increased and then decreased.The activation energy of the hydrolysis reaction was 29.02 kJ/mol.In the continuous reactor,Co-B/PVFM catalyst could catalyze hydrolysis of sodium borohydride to produce hydrogen at a rate of 12.0 L/min,which could supply hydrogen for 1 kW fuel cell,and the catalytic activity did not decay for 100 min,showing great practical application potential.

Key words: Co-B catalyst, NaBH4, hydrolysis, hydrogen generation

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