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[1]马文娟,张玉亭,姜华,等.Au-Fe/NaY催化膜的制备及其在CO选择性氧化中的应用[J].南京工业大学学报(自然科学版),2013,35(03):36-40.[doi:10.3969/j.issn.1671-7627.2013.03.008]
 MA Wenjuan,ZHANG Yuting,JIANG Hua,et al.Preparation of Au-Fe/NaY catalytic membranes and their application in preferential oxidation of CO(PROX-CO)[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(03):36-40.[doi:10.3969/j.issn.1671-7627.2013.03.008]
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Au-Fe/NaY催化膜的制备及其在CO选择性氧化中的应用()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年03期
页码:
36-40
栏目:
出版日期:
2013-05-20

文章信息/Info

Title:
Preparation of Au-Fe/NaY catalytic membranes and their application in preferential oxidation of CO(PROX-CO)
文章编号:
1671-7627(2013)03-0036-05
作者:
马文娟张玉亭姜华顾学红
南京工业大学 化学化工学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
MA WenjuanZHANG YutingJIANG HuaGU Xuehong
State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China
关键词:
分子筛 催化膜 纳米Au CO选择性氧化
Keywords:
zeolite catalytic membrane nano-sized Au CO preferential oxidation
分类号:
TQ174
DOI:
10.3969/j.issn.1671-7627.2013.03.008
文献标志码:
A
摘要:
以NaY分子筛膜为基体,采用离子交换法制备Au-Fe/NaY催化膜,研究Fe3+前驱体浓度对催化膜上Au负载量及其对CO选择性氧化催化性能的影响,同时考察反应温度、进料O2浓度对催化膜CO选择性氧化反应的影响。结果表明:随着Fe3+前驱体浓度的增加,Au的负载量增加,当Fe3+前驱体溶液浓度为5.0 mmol/L时,所制备的催化膜催化性能最好; 催化膜在12 h的反应时间内具有稳定的催化活性; 产物中n(CO)/n(H2)随反应温度的升高先降低后升高,在80 ℃达到最小,且随进料O2浓度的增加而降低。
Abstract:
Au-Fe/NaY catalytic membranes were prepared by an ion-exchange method using NaY zeolite membranes as supports.The effects of Fe3+ precursor concentration on the gold loading and the activity of catalytic membranes for preferential oxidation of CO(PROX-CO)were studied.The influences of the reaction temperature and O2 concentration in feed were also investigated.The results showed that gold loading increased with the increasing of Fe3+ precursor concentration.The highest catalytic activity was achieved on the Fe3+ precursor concentration of 5.0 mmol/L.Steady catalytic activity was observed over the catalytic membrane during 12 h reaction.The n(CO)/n(H2)in the products decreased firstly with the increasing of reaction temperature, and then increased subsequently,it had a minimum value at 80 ℃.Besides,the n(CO)/n(H2)decreased with the increasing of O2 concentration in feed.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2012-05-02
基金项目:国家自然科学基金(21176117)
作者简介:马文娟(1986—),女,河南卫辉人,硕士生,主要研究方向为膜材料与膜分离; 顾学红(联系人),教授,E-mail:xhgu@ njut.edu.cn..
更新日期/Last Update: 2013-05-31