NiPt/CeO_(2)催化剂的制备及其催化水合肼分解制氢性能研究  

Synthesis of NiPt/CeO_(2)Catalyst and Its Catalytic Performance for Hydrogen Production via Hydrazine Hydrate Decomposition

作　　者：吴慧 郑君宁 李蓉 许立信[1] 叶明富[1,2,3,4] 万超 Wu Hui;Zheng Junning;Li Rong;Xu Lixin;Ye Mingfu;Wan Chao(School of Chemistry and Chemical Engineering,Anhui University of Technology,Ma'anshan 243000,China;Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Nankai University,Tianjin 300071,China;Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Changzhou University,Changzhou 213164,China;Key Laboratory of Green Energy and Environment Catalysis,Ningde Normal University,Ningde 352100,China;College of Chemical Engineering and Biological Engineering,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]安徽工业大学化学与化工学院,安徽马鞍山243000 [2]南开大学先进能源材料化学教育部重点实验室,天津300071 [3]常州大学江苏省绿色催化材料与技术重点实验室,江苏常州213164 [4]宁德师范学院绿色能源与环境催化福建高校重点实验室,福建宁德352100 [5]浙江大学化学工程与生物工程学院,浙江杭州310058

出　　处：《中国稀土学报》2024年第6期1102-1110,I0002,共10页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金青年基金项目(22108238)和联合项目(U22A20408);安徽省自然科学基金青年基金项目(1908085QB68);中国博士后面上项目(2019M662060)、派出项目(PC2022046)和特别资助站中项目(2020T130580);江苏省绿色催化材料与技术重点实验室项目(BM2012110);绿色能源与环境催化福建省高校重点实验室开放课题(FJ-GEEC202204);2022年国家级大学生创新创业训练计划项目(202210360037)资助。

摘　　要：水合肼(N_(2)H_(4)·H_(2)O)作为目前世界上最常用的储氢材料之一,引起了广大研究者的关注。通过低温浸渍还原法将NiPt金属纳米颗粒负载在CeO_(2)纳米立方体载体上制备出不同金属比例的NiPt/CeO_(2)催化剂,进一步研究了催化剂的结构及其催化水合肼制氢的性能。研究结果表明,催化剂优良的活性可归因于NiPt双金属形成合金的合金效应以及金属与CeO_(2)纳米立方体载体之间的协同作用。所制备的Ni5Pt5/CeO_(2)催化剂在催化水合肼分解制氢中表现出最优的催化活性,在323 K下其TOF值为2960.5 h^(-1),经过5次循环后仍保持良好的催化活性。Hydrazine hydrate(N_(2)H_(4)·H_(2)O),one of the most commonly used hydrogen storage materials worldwide,has attracted significant attention from researchers.Using a low-temperature impregnation-reduction method,NiPt metal nanoparticles were loaded onto CeO_(2)nanocubes to prepare NiPt/CeO_(2)catalysts with varying metal ratios.The structure of the catalysts and their catalytic performance for hydrazine hydrate hydrogen production were further investigated.The research results demonstrate that the excellent activity of the catalyst can be attributed to the alloying effect of the NiPt bimetallic formation and the synergistic interaction between the metals and the CeO_(2)nanocube support.The prepared Ni5 Pt5/CeO_(2)catalyst exhibits the best catalytic activity for hydrazine hydrate decomposition hydrogen production,with a turnover frequency(TOF)value of 2960.5 h^(‒1) at 323 K,and maintains good catalytic activity even after 5 cycles.

关 键 词：制氢 水合物 纳米结构 NiPt/CeO_(2) 还原 

分 类 号：O643.36[理学—物理化学]