摘要
以介孔CeO_2-Al_2O_3为载体,采用浸渍法制备了系列介孔Co_3O_4/CeO_2-Al_2O_3催化剂,该系列催化剂对甲醛的低温催化氧化反应有显著的催化效果。考察了催化剂中Co_3O_4的质量分数对催化剂的催化性能的影响。实验结果表明,当Co_3O_4的质量分数为8%时,催化剂在60℃使甲醛完全氧化为CO_2和H_2O。同时,对样品进行了程序升温还原(H_2-TPR)表征,发现介孔8%Co_3O_4/CeO_2-Al_2O_3催化剂具有较强的还原能力。
A series of mesoporous Co_3O_4/CeO_2-Al_2O_3 catalysts with different loading amounts of Co_3O_4 were prepared by wet impregnation method and tested for catalytic oxidation of formaldehyde（HCHO）. Effect of Co_3O_4 loading amount on the catalytic performance was investigated. The results showed that, when loading amount of Co_3O_4 was 8%, formaldehyde was completely oxidized to CO_2 and H_2 O at 60 ℃over the catalyst. And the samples were characterized by H_2-TPR. It＇s found that the mesoporous 8%Co_3O_4/CeO_2-Al_2O_3 catalyst has strong reducibility.
作者
王凡
魏书晗
周学凤
贺路路
刘彦雄
庞凡爵
赵文
陈立威
何阳
马颖
庞鹏辉
卢素红
WANG Fan;WEI Shu-han;ZHOU Xue-feng;HE Lu-lu;LIU Yan-xiong;PANG Fan-jue;ZHAO Wen;CHEN Li-wei;HE Yang;MA Ying;PANG Peng-hui;LU Su-hong(School of Chemistry and Chemical Engineering,Xi＇an Shiyou University,Shaanxi Xi＇an 710065,China)
出处
《当代化工》
CAS
2018年第9期1761-1763,1775,共4页
Contemporary Chemical Industry
基金
国家自然科学基金项目
项目号:21606177
西安市科技计划项目
项目号:2017081CG/RC044(XASY006)
陕西省教育厅专项科研计划项目
项目号:17JK0608
陕西省大学生创新创业训练计划资助项目
项目号:2017107051486和201610705046
西安石油大学大学生创新创业训练计划资助项目
项目号:201610705027
