竹茹丝炭负载钌催化剂光催化氨硼烷水解产氢研究  

Research on bamboo shavings carbon supported ruthenium catalysts for hydrogen generation from photocatalytic hydrolysis of ammonia borane

作　　者：邱小魁 张若凡 王小燕 王海龙 张齐雪 万超[2] 许立信 QIU Xiaokui;ZHANG Ruofan;WANG Xiaoyan;WANG Hailong;ZHANG Qixue;WAN Chao;XU Lixin(GBXF Silicones Co.,Ltd.,Ma′anshan 243000,China;School of Chemistry and Chemical Engineering,Anhui University of Technology,Ma′anshan 243000,China)

机构地区：[1]安徽硅宝有机硅新材料有限公司,安徽马鞍山243000 [2]安徽工业大学化学与化工学院,安徽马鞍山243000

出　　处：《无机盐工业》2023年第10期153-158,共6页Inorganic Chemicals Industry

基　　金：2022年国家级大学生创新创业训练计划项目(202210360037);2021年省级大学生创新创业训练计划项目(S202110360217);安徽省自然科学基金青年基金项目(1908085QB68);国家自然科学基金项目(22108238,U22A20408)。

摘　　要：为了制备高效、低成本的氨硼烷制氢催化剂,以竹茹丝为原料,采用直接煅烧法得到竹茹丝炭材料(BSC),再以BSC为载体通过浸渍-还原法将金属Ru负载到载体表面,制备出层状结构的Ru/BSC催化剂。通过各种表征方法对催化剂的结构组成和形貌进行了分析并探究了光与非光、金属负载量、催化剂用量、氨硼烷浓度、温度等条件对氨硼烷水解产氢的影响。结果表明,Ru与BSC之间存在金属-载体相互作用,1.0%Ru/BSC催化剂在可见光照射下催化氨硼烷水解产氢性能明显优于非光条件,氨硼烷水解产氢速率与Ru/BSC催化剂用量成正比,与氨硼烷浓度无关。计算得到1.0%Ru/BSC在298 K时光催化反应的转化频率(TOF)为446.4 min^(-1)、活化能为64.0 kJ/mol。因此,该研究为制备高效且低成本的催化剂提供了新的思路。In order to prepare efficient and low⁃cost catalysts for hydrogen production from ammonia borane,bamboo shavings carbon materials(BSC)derived from bamboo shavings were prepared by direct calcination.The Ru/BSC layered catalyst was finally prepared by impregnation reduction using BSC as carrier to support the Ru metal on the carrier surface.The catalyst structure composition and morphology were analyzed by various characterization methods and the effects of light and non⁃light,metal loading,catalyst dosage,ammonia borane concentration and temperature on hydrogen production from ammonia borane hydrolysis were investigated.The results showed that there was a metal⁃support interaction between Ru and BSC.The 1.0%Ru/BSC catalyst catalyzed ammonia borane hydrolysis dehydrogenation under visible light irradiation was sig⁃nificantly better than dark conditions.The rate of hydrogen production was directly proportional to the concentration of Ru/BSC,and the hydrogen production rate of ammonia borane hydrolysis catalyzed by Ru/BSC was independent of the concen⁃tration of ammonia borane.The TOF value of the dehydrogenation reaction of ammonia borane catalyzed by 1.0%Ru/BSC at 298 K was 446.4 min^(-1) and the activation energy was 64.0 kJ/mol.Therefore,this study provided a new idea for the preparation of efficient and low⁃cost catalysts.

关 键 词：钌催化剂 竹茹丝炭 光催化 氨硼烷 水解产氢 

分 类 号：TQ138.21[化学工程—无机化工]