[1]叶菁睿,何光裕,陈海群.MOF衍生制备Pd-MnCeOx催化剂及其CO催化氧化性能[J].常州大学学报(自然科学版),2023,35(06):19-25.[doi:10.3969/j.issn.2095-0411.2023.06.003]
　YE Jingrui,HE Guangyu,CHEN Haiqun.MOF-derived Pd-MnCeOx catalysts and its CO catalytic oxidation properties[J].Journal of Changzhou University(Natural Science Edition),2023,35(06):19-25.[doi:10.3969/j.issn.2095-0411.2023.06.003]
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MOF衍生制备Pd-MnCeOx催化剂及其CO催化氧化性能()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第35卷
期数:
2023年06期
页码:
19-25
栏目:
化学化工：多相催化专题
出版日期:
2023-11-28

文章信息/Info

Title:
MOF-derived Pd-MnCeOx catalysts and its CO catalytic oxidation properties
文章编号:
2095-0411(2023)06-0019-07
作者:
叶菁睿;  何光裕;  陈海群
(常州大学 石油化工学院, 江苏 常州 213164)
Author(s):
YE Jingrui;  HE Guangyu;  CHEN Haiqun
(School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China)
关键词:
一氧化碳氧化;  Pd基催化剂;  金属掺杂;  二氧化铈
Keywords:
CO oxidation;  Pd-based catalysts;  metal doping;  CeO2
分类号:
TQ 138.2
DOI:
10.3969/j.issn.2095-0411.2023.06.003
文献标志码:
A
摘要:
利用铈基金属有机框架限域Pd颗粒,并通过界面反应掺杂Mn离子,以此为前驱体经过热解反应制备MnCeOx混合氧化物负载的Pd催化剂。表征结果表明,这一方法制备的Pd-MnCeOx催化剂具有纳米棒状形貌,且Mn在CeO2晶格中均匀掺杂,Pd在载体上高度分散。Mn的掺杂有效提升了载体的氧空穴浓度,改善了载体的低温氧化还原性能,增强了CO氧化反应中的晶格氧流动性。此外,在Mn的掺杂量达到3.26%时,Pd-MnCeOx-10中Pd与混合氧化物具有最强的金属-载体相互作用,从而表现出了最佳的CO催化氧化活性,在100 ℃时可以将CO完全转化。
Abstract:
Ce-based metal-organic frameworks were applied to confine Pd particles and Mn ions were incorporated inside by interfacial reaction, which was pyrolyzed to prepare MnCeOx mixed oxide supporting Pd as precursor. The characterization results showed that the as-prepared Pd-MnCeOx catalysts possessed nanorod morphology, on which Pd were highly dispersed and Mn were homogeneously doped into CeO2 lattice. Mn doping effectively improved the concentration of oxygen vacancy and the low-temperature redox of support, enhancing the lattice oxygen mobility in CO oxidation. In addition,when Mn doping amount reached 3.26%, the strongest metal-support interaction between Pd and the mixed oxide in Pd-MnCeOx-10 was observed, leading to the improved catalytic activity as complete CO conversion at 100 ℃.

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备注/Memo

备注/Memo:
收稿日期: 2023-05-27。
基金项目: 江苏省高等学校基础科学(自然科学)研究项目资助(21KJD530001); 江苏省绿色催化材料与技术实验室开放课题基金资助项目(BM2012110)。
作者简介: 叶菁睿(1992—), 女, 安徽宿州人, 博士, 讲师。通信联系人: 陈海群(1970—), E-mail: chenhq@cczu.edu.cn
更新日期/Last Update: 1900-01-01