摘要
以碳化钼为载体,采用锚定-沉积策略制备了负载型铜基催化剂(Cu/Mo_(2)C),考察了催化剂在对硝基苯酚(4-NP)催化加氢反应中的特性。X射线粉末衍射和扫描电镜结果表明铜物种以金属态的形式均匀分散在载体表面。催化结果表明:在25℃和常压下,Cu/Mo_(2)C在2 min内即可实现94.2%的4-NP催化转化,加氢速率常数达到38.6×10^(-3)s^(-1)。此外,Cu/Mo_(2)C催化剂在五次循环利用中没有出现显著下降,表现出有较高的稳定性和循环利用性。
Supported copper catalysts(Cu/Mo_(2)C)were prepared through an anchoring-deposition strategy by applying molybdenum carbide as the underlying carrier.XRD and SEM results showed that copper species were uniformly dispersed on the carrier surface in the metallic state,and its catalytic performance was investigated for the catalytic hydrogenation of p-nitrophenol(4-NP).The results showed that Cu/Mo_(2)C achieved 94.2%conversion of 4-NP within 2 min at 25℃and atmospheric pressure,with a hydrogenation rate constant of 38.6×10^(-3)s^(-1).In addition,the Cu/Mo_(2)C catalyst showed no significant degradation in five cycles of recycling,exhibiting high stability and recyclability.
作者
王浩臣
付肖彤
郑晨阳
师歌
任祥瑞
王丽梅
刘中敏
耿龙龙
Wang Haochen;Fu Xiaotong;Zheng Chenyang;Shi Ge;Ren Xiangrui;Wang Limei;Liu Zhongmin;Geng Longlong(Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology,College of Chemistry and Chemical Engineering,Dezhou University,Dezhou 253023,China)
出处
《山东化工》
CAS
2023年第14期23-25,共3页
Shandong Chemical Industry
基金
山东省青创科技计划创新团队(2021KJ054)
教育部产学合作协同育人项目(202102047002)
大学生创新创业训练计划资助项目(S202210448020、X202210448012)
德州学院教改项目(dzums20-05、dzuzc20-16)
德州学院“四新”研究与改革实践项目(化学工程与工艺专业改造提升路径探索与实践)。
关键词
多相催化
碳化钼
氧化铜
对硝基苯酚
催化加氢
heterogeneous catalysis
molybdenum carbide
copper oxide
on nitrophenol
catalytic hydrogenation
