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.
作者
吴慧
郑君宁
左佑华
许立信
叶明富
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)
出处
《燃料化学学报（中英文）》
EI
CAS
CSCD
北大核心
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。
关键词
钌催化剂
氨硼烷
水解制氢
生物质炭材料
ruthenium catalyst
ammonia borane
hydrogen production by hydrolysis
biochar material
