稻壳基碳材料负载钌催化剂的制备及其对氨硼烷水解制氢的催化性能  

Preparation of rice husk-based carbon supported ruthenium catalyst for the hydrolysis of ammonia borane to produce hydrogen

作　　者：吴慧 郑君宁 左佑华 许立信[1] 叶明富[1,2,3] 万超 WU Hui;ZHENG Jun-ning;ZUO You-hua;XU Li-xin;YE Ming-fu;WAN Chao(School of Chemistry and Chemical Engineering,Anhui University of Technology,Anhui Ma’anshan 243000,China;Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Nankai University,Tianjin 300071,China;Key Laboratory of Green Energy and Environment Catalysis(Ningde Normal University),Fujian Province University,Ningde 352100,China;College of Chemical Engineering and Biological Engineering,Zhejiang University,Hangzhou 310027,China;Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Changzhou University,Changzhou 213164,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]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 [4]浙江大学化学工程与生物工程学院,浙江杭州310027 [5]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

出　　处：《燃料化学学报（中英文）》2023年第8期1201-1208,共8页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金青年基金(22108238)和联合项目(U22A20408);安徽省自然科学基金青年基金(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(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：本研究采用简单的浸渍还原法,在N_(2)气氛下高温焙烧三聚氰胺和稻壳来制备氮掺杂稻壳活性炭载体(N-RHC),再采用RuCl_(3)溶液通过浸渍法将活性组分Ru负载到N-RHC载体上,得到Ru/N-RHC催化剂,探究了其对氨硼烷制氢的催化性能。结果表明,Ru负载量为5%(质量分数)的Ru/N-RHC催化剂具有较好的氨硼烷制氢催化性能,反应转化频率(TOF)达83.71 min^(-1),在光的照射下,该催化剂上氨硼烷水解的活化能从88.9 kJ/mol降到64.9 kJ/mol,且制氢速率与氨硼烷浓度以及催化剂浓度呈现正相关。An efficient dehydrogenation catalyst is crucial for the application of ammonia borane(NH3BH3,AB)as a solid chemical hydrogen storage material.In this work,a kind of nitrogen-doped rice husk activated carbon(N-RHC)was prepared by roasting melamine and rice husk at high temperature under nitrogen atmosphere.With N-RHC as the support,the rice husk-based carbon supported ruthenium catalyst(Ru/N-RHC)was prepared through impregnation with the RuCl_(3) solution and its catalytic performance in the hydrolysis of ammonia borane to produce hydrogen was investigated.The results indicate that the Ru/N-RHC catalyst with a Ru loading of 5%performs excellently in the hydrolysis of ammonia borane;the reaction turnover frequency(TOF)reaches 83.71 min^(-1) and the apparent activation energy decreases from 88.9 to 64.9 kJ/mol under light irradiation.In addition,the hydrogen production rate is positively correlated with the content of ammonia borane and catalyst.

关 键 词：钌催化剂 氨硼烷 水解制氢 生物质炭材料 

分 类 号：O643.36[理学—物理化学]