IMECH-IR  > 高温气体动力学国家重点实验室
Cu-Ce-Zr基催化剂上CO自持燃烧及动力学实验研究
张庆1; 郝庆1; 赵若竹1; 豆宝娟1; 王宇豪2; 康润宁3; 宾峰3
Source Publication化学工程
2018
Volume46Issue:11Pages:40-45
ISSN1005-9954
Abstract

为了研究Cu-Ce-Zr基催化剂上CO的自持燃烧,采用浸渍法制备了负载型CuCe_(0.75)Zr_(0.25)O_y/ZSM-5、CuCe_(0.75)Zr_(0.25)O_y/TiO_2和溶胶凝胶法制备了复合氧化物CuCe_(0.75)Zr_(0.25)O_y催化剂,结合XRD、BET、SEM、O_2-TPD及CO-TPO等手段对催化剂进行表征与CO自持燃烧反应活性评价.结果表明:CO自持催化燃烧主要分为反应诱导阶段、飞温阶段及自持燃烧3个阶段.催化剂活性CuCe_(0.75)Zr_(0.25)O_y(t_(100)=65℃)>CuCe_(0.75)Zr_(0.25)O_y/TiO_2(t_(100)=150℃) >CuCe_(0.75)Zr_(0.25)O_y/ZSM-5(t_(100)=172℃).表观动力学研究表明,CO催化燃烧均遵循一级反应动力学,反应表观活化能大小顺序为CuCe_(0.75)Zr_(0.25)O_y/ZSM-5(259.7 kJ/mol)> CuCe_(0.75)Zr_(0.25)O_y/TiO_2(69.7 kJ/mol)> CuCe_(0.75)Zr_(0.25)O_y(55.4 kJ/mol).催化剂中活性物种质量分数对催化剂还原能力与储放氧能力的影响显著.

Keyword一氧化碳 Cu-ce-zr 催化剂 自持燃烧 动力学
Language中文
CSCD IDCSCD:6405650
Ranking5+
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78527
Collection高温气体动力学国家重点实验室
Affiliation1.天津科技大学化工与材料学院, 天津, 300457
2.国家开发银行河北省分行, 河北, 石家庄, 050001
3.中国科学院力学研究所, 高温气体动力学国家重点实验室, 北京, 100190
Recommended Citation
GB/T 7714
张庆,郝庆,赵若竹,等. Cu-Ce-Zr基催化剂上CO自持燃烧及动力学实验研究[J]. 化学工程,2018,46(11):40-45.
APA 张庆.,郝庆.,赵若竹.,豆宝娟.,王宇豪.,...&宾峰.(2018).Cu-Ce-Zr基催化剂上CO自持燃烧及动力学实验研究.化学工程,46(11),40-45.
MLA 张庆,et al."Cu-Ce-Zr基催化剂上CO自持燃烧及动力学实验研究".化学工程 46.11(2018):40-45.
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