Promoting effects of Ce and Pt addition on the destructive performances of V2O5/γ-Al2O3 for catalytic combustion of benzene
Promoting effects of Ce and Pt addition on the destructive performances of V2O5/γ-Al2O3 for catalytic combustion of benzene
复制标题
Ce和Pt添加对V2O5/γ-Al2O3苯催化燃烧破坏性能的促进作用
DOI：
10.1016/j.apcata.2017.05.016
复制
发表时间：
2017-07
期刊：
影响因子：
--
通讯作者：
Shufeng Zuo
中科院分区：
文献类型：
--
作者：
Peng yang;Jingrong Li;Zhen Cheng;Shufeng Zuo
以具有大比表面积、高机械强度和良好热稳定性的工业介孔γ-Al 2 O3为载体，制备了一系列不同V2 O 5负载量的V2 O 5/γ-Al 2 O3材料。为了进一步提高苯的催化燃烧氧化性能，引入了Ce和Pt催化剂。采用XRD、N2吸附/脱附、HRTEM、EDX、H2-TPR和原位TPSR等技术对催化材料进行了表征，考察了材料的结构与催化性能的关系。结果表明，添加10%wt的Ce和0.3%wt的Pt可显著提高V2 O 5/γ-Al 2 O3催化剂对苯的氧化活性和CO2选择性，这是由于金属与金属、金属与载体之间的相互作用以及活性组分在γ-Al 2 O3上的高分散性使催化剂的氧化还原性能显著提高。此外，0.3%Pt/10%Ce-10%V/γ-Al 2 O3催化剂在长时间连续反应中表现出良好的耐久性和抗水、氯中毒性能，具有良好的工业应用前景。
In the present work, a commercial mesoporous γ-Al2O3with large specific surface area, high mechanical strength and good thermal stability was employed as the support for preparing a series of V2O5/γ-Al2O3materials with different loading amounts of V2O5. Ce and Pt were introduced in order to further promote the oxidative performances for catalytic combustion of benzene, a typical pollutant of various volatile organic compounds (VOCs) in industrial waste gases. To investigate the structure − catalytic property relationship, these catalytic materials were systematically characterized by the XRD, N2adsorption/desorption, HRTEM, EDX, H2-TPR and in-situ TPSR techniques. The results showed that the introduction of 10%wt Ce and 0.3%wt Pt significantly improved the catalytic oxidative activity and CO2selectivity of the V2O5/γ-Al2O3catalysts for benzene combustion, due to the obvious enhanced redox property resulted from the metal–metal and metal-support interaction as well as the high dispersion of the active components on γ-Al2O3. Furthermore, the 0.3%Pt/10%Ce-10%V/γ-Al2O3catalyst also represented good durability and resistance to water and Cl-poisoning during the long-time continuous reaction, implying that it deserved more attention and had good potential for industrial application.
登录
查看更多内容
二氧化铈促进剂对壳粉负载Pd催化剂苯完全氧化的影响
DOI：
10.1016/j.apcata.2012.10.041
发表时间：
2013-01
期刊：
Applied Catalysis A: General
影响因子：
--
作者：
Du, Yijun;Liu, Fujian;Han, Dan;Qi, Chenze
通讯作者：
Qi, Chenze
Pt/Co3O4/3DOM Al2O3：高效甲苯燃烧催化剂
影响因子：
16.5
作者：
Yang Huanggen;Deng Jiguang;Liu Yuxi;Xie Shaohua;Xu Peng;Dai Hongxing
通讯作者：
Dai Hongxing
DOI：
10.1524/zpch.1999.208.part_1_2.274
发表时间：
1999
期刊：
Zeitschrift für Physikalische Chemie
影响因子：
--
作者：
G. Öhlmann
通讯作者：
G. Öhlmann
DOI：
10.1021/j100458a023
发表时间：
1980-10
期刊：
The Journal of Physical Chemistry
影响因子：
--
作者：
F. Roozeboom;Mc Mittelmeijer-Hazeleger;J. Moulijn;J. Medema;V. D. Beer;P. Gellings
通讯作者：
F. Roozeboom;Mc Mittelmeijer-Hazeleger;J. Moulijn;J. Medema;V. D. Beer;P. Gellings
影响因子：
22.1
作者：
R. Ferreira;P. D. Oliveira;F. Noronha
通讯作者：
R. Ferreira;P. D. Oliveira;F. Noronha