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分子筛USY负载硼化钴非晶态合金催化剂的制备及其在催化硼氢化钠水解制氢中的应用

赵士夺 ,  李芳 ,  李其明 ,  梁志花

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引用本文: 赵士夺, 李芳, 李其明, 梁志花. 分子筛USY负载硼化钴非晶态合金催化剂的制备及其在催化硼氢化钠水解制氢中的应用[J]. 应用化学, 2016, 33(6): 655-660. doi: 10.11944/j.issn.1000-0518.2016.06.150327 shu
Citation:  ZHAO Shiduo, LI Fang, LI Qiming, LIANG Zhihua. Preparation of USY Zeolite Supported Cobalt Boride Amorphous Alloy Catalysts and Its Application in Catalytic Hydrogen Production via Hydrolysis of Sodium Borohydride[J]. Chinese Journal of Applied Chemistry, 2016, 33(6): 655-660. doi: 10.11944/j.issn.1000-0518.2016.06.150327 shu

分子筛USY负载硼化钴非晶态合金催化剂的制备及其在催化硼氢化钠水解制氢中的应用

  • 1.

    a 辽宁石油化工大学化学化工与环境学部, 石油化工重点实验室 辽宁 抚顺 113001;

  • 2.

    b 中国科学院煤制乙二醇及相关技术重点实验室 福州 350002

    • 通讯作者: 李其明,副教授;Tel/Fax:15242352060;E-mail:lqm_dicp@163.com;研究方向:储氢能源与催化新材料
  • 基金项目:

    国家自然科学基金项目（21201096）；辽宁省教育厅资助项目（L2010242）；辽宁省教育厅辽宁石油化工大学石油化工重点实验室项目（LZ2015050）；中国科学院煤制乙二醇及相关技术重点实验室资助项目 

摘要: 采用浸渍法与化学还原法相结合制备了一系列USY型分子筛负载非晶态合金硼化钴（CoB/USY）催化剂,并系统探究了该催化剂在催化硼氢化钠水解制氢中的催化活性。XRD表征表明，USY分子筛载体上负载的活性组分CoB属于非晶态结构。通过扫描电子显微镜，对比了负载型CoB/USY催化剂和粉末状CoB催化剂的微观形貌，发现非晶态合金活性组分CoB能够很好的分布在USY分子筛载体表面,较粉末状CoB有更高的分散度。催化硼氢化钠水解制氢实验结果表明，相对于粉末状CoB催化剂，负载型CoB/USY催化剂在硼氢化钠水解制氢中具有更高的催化活性，30℃时NaBH4水解产氢速率约为1.5 L/（min·g）。反应动力学的计算结果显示，负载型CoB/USY催化剂在催化NaBH4水解制氢反应中表观活化能约为65.9 kJ/mol，大大低于粉末状CoB催化剂的活化能（72.1 kJ/mol）。

English

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  • 收稿日期:  2015-09-06
  • 网络出版日期:  2015-11-13
通讯作者: 陈斌, bchen63@163.com
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