CuO-CeO2/SiO2 coating on ceramic monolith: Effect of the nature of the catalyst support on CO preferential oxidation in a H2-rich stream

被引：31
|
作者：
Tiscornia, Ines S. [1 ]
Lacoste, Albano M. [1 ]
Gomez, Leticia E. [1 ]
Boix, Alicia, V [1 ]
机构：
[1] UNL CONICET, FIQ, INCAPE, Inst Invest Catalisis & Petroquim, RA-3000 Santa Fe, Argentina
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2020年 / 45卷 / 11期
关键词：
SiO2; supports; XPS; Raman; EDX-SEM; TPR; COPrOx; METAL-ORGANIC FRAMEWORK; CORDIERITE MONOLITHS; CUO/CEO2; CATALYSTS; CEO2/CUO CATALYST; LOW-TEMPERATURE; PERFORMANCE; COPPER; PROX; GAS; STABILITY;
D O I：
10.1016/j.ijhydene.2019.12.126
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Powder and structured catalysts based on CuO-CeO2 nanoparticles dispersed on different silica are studied in CO preferential oxidation. Silica of natural origin (Celite) and fumed silica (aerosil), both commercial materials, and synthesized mesoporous SBA-15 with 20, 200 and 650 m(2)g(-1) respectively, are selected as supports. CuCe/Celite coated on cordierite monolith displays the highest activity, reaching CO conversion above 90% between 140 and 210 degrees C and more than 99% around 160 degrees C. The addition of 10% CO2 and 10% H2O partially deactivates the monolithic catalyst. The lower surface area of CuCe/Celite favors the contact between CuO and CeO2 nanoparticles promoting a better interaction of Cu+2/Cu+ and Ce+3/Ce+4 redox couples. Raman spectroscopy reveals oxygen vacancies and XPS results show high metal lattice surface oxygen concentration and surface enrichment of Cu and Ce which promote the catalytic activity. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：6636 / 6650
页数：15
相关论文
共 50 条
  • [1] CuO-CeO2 supported on montmorillonite-derived porous clay heterostructures (PCH) for preferential CO oxidation in H2-rich stream
    Cecilia, J. A.
    Arango-Diaz, A.
    Franco, F.
    Jimenez-Jimenez, J.
    Storaro, L.
    Moretti, E.
    Rodriguez-Castellon, E.
    CATALYSIS TODAY, 2015, 253 : 126 - 136
  • [2] Au/CuO-CeO2 catalyst for preferential oxidation of CO in hydrogen-rich stream: Effect of CuO content
    Lee, Der-Shing
    Chen, Yu-Wen
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2016, 41 (05) : 3605 - 3612
  • [3] CO preferential oxidation in H2-rich stream over a CuO/CeO2 catalyst with high H2O and CO2 tolerance
    Wu, Zhiwei
    Zhu, Huaqing
    Qin, Zhangfeng
    Wang, Hui
    Ding, Jianfei
    Huang, Lichun
    Wang, Jianguo
    FUEL, 2013, 104 : 41 - 45
  • [4] Multishell hollow CeO2/CuO microbox catalysts for preferential CO oxidation in H2-rich stream
    Gao, Meiyi
    Zhao, Yuhong
    Zeng, Shanghong
    Su, Haiquan
    CATALYSIS COMMUNICATIONS, 2015, 72 : 105 - 110
  • [5] CuO/CeO2 based monoliths for CO preferential oxidation in H2-rich streams
    Barbato, Paola Sabrina
    Di Benedetto, Almerinda
    Landi, Gianluca
    Lisi, Luciana
    CHEMICAL ENGINEERING JOURNAL, 2015, 279 : 983 - 993
  • [6] CuO/CeO2-MnO2 Catalyst Prepared by Redox Method for Preferential Oxidation of CO in H2-Rich Gases
    Gong, Lei
    Liu, Changxiang
    Liu, Qian
    Dai, Runying
    Nie, Xuliang
    Lu, Limin
    Liu, Guangbin
    Hu, Xiuxia
    CATALYSIS SURVEYS FROM ASIA, 2019, 23 (01) : 1 - 9
  • [7] Preferential CO Oxidation in a H2-Rich Stream on Pt-ReOx/SiO2: Catalyst Structure and Reaction Mechanism
    Ebashi, Tatsuya
    Ishida, Yoichi
    Nakagawa, Yoshinao
    Ito, Shin-ichi
    Kubota, Takeshi
    Tomishige, Keiichi
    JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (14) : 6518 - 6526
  • [8] Synthesis of highly-dispersed CuO-CeO2 catalyst through a chemisorption-hydrolysis route for CO preferential oxidation in H2-rich stream
    Meng, Ming
    Liu, Yaqiong
    Sun, Zhaosong
    Zhang, Lijie
    Wang, Xitao
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (19) : 14133 - 14142
  • [9] Effect of interaction between CuO and CeO2 on the performance of CuO-CeO2 catalysts for selective oxidation of CO in H2-rich streams
    Zhu, Pengfei
    Liu, Mei
    Zhou, Renxian
    INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 2012, 51 (11): : 1529 - 1537
  • [10] Activity enhancement of Cu-doped ceria by reductive regeneration of CuO-CeO2 catalyst for preferential oxidation of CO in H2-rich streams
    Razeghi, A.
    Khodadadi, A.
    Ziaei-Azad, H.
    Mortazavi, Y.
    CHEMICAL ENGINEERING JOURNAL, 2010, 164 (01) : 214 - 220
12345