Page 77 - 201812

第 35 卷第 12 期 精 细 化 工 Vol.35, No.12
2018 年 12 月 FINE CHEMICALS Dec. 2018

催化与分离提纯技术
CeO 形貌对甲醇水蒸汽重整
2

CuO/CeO 催化剂的影响
2

2
1
1
1
刘玉娟 ，王东哲 ，张 磊 1,* ，白 金 ，陈 琳 ，刘道胜 1,*
（1. 辽宁石油化工大学 化学化工与环境学部, 辽宁 抚顺 113001；2. 营口理工学院 化学与环境工程系,
辽宁 营口 115014）
摘要：通过改变焙烧气氛，通过水热法合成不同形貌的 CeO 2 纳米材料，再通过浸渍法将其制备成 CuO/CeO 2 催
化剂，并应用于甲醇水蒸汽重整制氢反应。采用 SEM、XRD、BET、H 2 -TPR、N 2 O 滴定和 XPS 对催化材料进
行了表征，着重探讨了氧化铈形貌对催化剂结构、性质和性能的影响。结果表明：空气气氛下焙烧得到的纳米
棒状结构的 CeO 2 负载 CuO 制备的 CuO/CeO 2 催化剂性能最佳，这主要是因为纳米棒状结构的 CeO 2 与 CuO 的相
互作用较强，表面存在较多的晶格缺陷和氧空穴，进而使得 CuO/CeO 2 催化剂表相 Cu 含量增加，Cu 物种的还
–1
原温度较低，催化活性较好。当反应温度为 260 ℃、n(水)/n(甲醇)=1.2、甲醇气体空速为 800 h 时，甲醇转化
率可达 100%。
关键词：甲醇水蒸汽重整；氢气；氧化铜；氧化铈；催化技术
中图分类号：O643 文献标识码：A 文章编号：1003-5214 (2018) 12-2045-08

Effect of CeO 2 Morphology on the Performance of CuO/CeO 2

Catalysts for Methanol Steam Reforming

1
1,*
1,*
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LIU Yu-juan , WANG Dong-zhe , ZHANG Lei , BAI Jin , CHEN Lin , LIU Dao-sheng
（1. College of Chemistry, Chemical Engineering, and Environmental Engineering, Liaoning Shihua University, Fushun
113001, Liaoning, China; 2. Department of Chemistry and Envitonmental Engineering, Yingkou Institute of Technology,
Yingkou 115014, Liaoning, China）
Abstract: Cerium dioxide nanomaterials were synthesized by hydrothermal method under different roasting
atmosphere. Subsequently, CuO/CeO 2 catalysts for methanol steam reforming were prepared by
impregnation method. SEM, XRD, BET, H 2-TPR and N 2O titration and XPS were adopted to characterize
these materials. The effects of CeO 2 morphology on the structure, properties and performance of the
catalysts were investigated. The results showed that the CuO impregnated on CeO 2 nanorods (CuO/CeO 2)

catalyst demonstrated the best catalytic performance mainly due to a strong interaction between CeO 2
nanorods and CuO, and many lattice defects and oxygen vacancy on the surface, which led to the increase
of Cu content on the surface phase of the CuO/CeO 2 catalysts. The reduction temperature decrease of Cu
species on the surface phase enhanced the catalytic activity. When the reaction temperature was 260 ℃, the
–1
water/methanol molar ratio was 1.2 and the methanol gas hourly space velocity was 800 h , the methanol
conversion was 100% and the CO molar fraction of 0.16% was obtained in steam reforming reaction.
Key words: methanol steam reforming; hydrogen; copper oxide; cerium oxide; catalysis technology
Foundation item: National Natural Science Foundation of China (21376237); Doctoral Scientific Research
Foundation of Liaoning Province (201601322)

收稿日期：2018-07-25; 定用日期：2018-11-01; DOI: 10.13550/j.jxhg.20180548
基金项目：国家自然科学基金（21376237）；辽宁省博士科研启动资金（2016013022）
作者简介：刘玉娟（1993—），女，硕士生。联系人：张 磊（1983—），男，副教授，硕士生导师，E-mail：lnpuzhanglei@163.com；
刘道胜（1976—），男，副教授，硕士生导师，E-mail：dsliu05@126.com。