NiPt/SBA-15纳米催化剂的制备及其催化水合肼分解产氢性能研究  

Preparation of NiPt/SBA-15 nanocatalyst and its catalytic performance for the dehydrogenation of hydrous hydrazine

作　　者：梁雨 李贵 郑君宁 许立信[1] 叶明富[1,2,3,4] 万超 LIANG Yu;LI Gui;ZHENG Jun-ning;XU Li-xin;YE Ming-fu;WAN Chao(College of Chemistry and Chemical Engineering,Institute of Engineering,Anhui University of Technology,Ma’anshan 243000,China;Jiangxi Province Engineering Research Center of Ecological Chemical Industry,Jiujiang University,Jiujiang 332005,China;Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Nankai University,Tianjin 300071,China;Anhui Key Laboratory of Photoelectric-Magnetic Functional Materials,Anhui Key Laboratory of Functional Coordination Compounds,Anqing Normal University,Anqing 246011,China;College of Chemical Engineering and Biological Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]安徽工业大学化学与化工学院工程研究院,安徽马鞍山243000 [2]九江学院江西省生态化工工程研究中心,江西九江332005 [3]南开大学先进能源材料化学教育部重点实验室,天津300071 [4]安庆师范大学,安徽省光电磁性功能材料重点实验室,功能配合物安徽省重点实验室,安徽安庆246011 [5]浙江大学化学工程与生物工程学院,浙江杭州310027

出　　处：《燃料化学学报（中英文）》2023年第5期684-692,共9页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金青年基金(22108238,U22A20408);安徽省自然科学基金青年基金(1908085QB68);安徽省科技重大专项(201903a05020055);中国博士后面上项目(2019M662060);特别资助站中项目(2020T130580);博士后国际交流派出项目(PC2022046);安徽省光电磁性功能材料重点实验室开放研究基金(ZD2021007);江西省生态化工工程研究中心开放研究基金(STKF2109)资助。

摘　　要：本研究采用浸渍还原法制备了不同金属比例的NiPt双金属负载SBA-15(介孔二氧化硅)催化剂,对其催化水合肼脱氢性能进行了研究。研究结果表明,在催化剂的制备过程中Pt和Ni形成了合金,两种金属的电子协同效应可以有效地促进催化剂的催化性能,SBA-15与金属活性组分之间的相互作用有助于改善催化剂的催化性能和循环稳定性。Pt_(6)Ni_(4)/SBA-15催化剂催化水合肼脱氢的反应活化能为45.6 kJ/mol,TOF值为2123.3 h^(-1),优于大部分已经报道的催化剂。As the most promising hydrogen storage material,hydrous hydrazine(N_(2)H_(4)·H_(2)O)has attracted extensive attention and interest of researchers.In this paper,NiPt bimetallic supported SBA-15(mesoporous silica)catalysts with different metal ratios were prepared by a simple impregnation reduction method,and their catalytic hydrous hydrazine dehydrogenation performance was studied.The research results show that Pt and Ni form an alloy during the preparation of the catalyst,the electronic synergistic effect of the two metals can effectively promote the catalytic performance of the catalyst,and the interaction between SBA-15 and the metal active components helps to improve the catalytic performance and cycling stability of catalysts.The activation energy of the Pt_(6)Ni_(4)/SBA-15 catalyst is 45.6 kJ/mol and the TOF value is 2123.3 h^(−1),which are better than most of the reported catalysts.

关 键 词：水合肼 分解制氢 NiPt SBA-15 

分 类 号：O643.36[理学—物理化学]