A study on the effect of CeO2 addition to a Pt/TiO2 catalyst on the reverse water gas shift reaction

被引：23
作者：
Lee, Sang Moon [1 ]
Eom, Hanki [1 ]
Kim, Sung Su [1 ]
机构：
[1] Kyonggi Univ, Dept Environm Energy Engn, 94-6 San, Suwon 442760, Gyeonggi Do, South Korea
来源：
ENVIRONMENTAL TECHNOLOGY | 2021年 / 42卷 / 02期
关键词：
CeO2/TiO2; reverse water gas shift; temperature-programmed reduction; redox mechanism; catalytic activity; OXIDATION; SUPPORTS; CO2; DECOMPOSITION; REDUCIBILITY; TEMPERATURE; DIOXIDE; TIO2; NH3; N2O;
D O I：
10.1080/09593330.2019.1625954
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this study, a series of catalysts with the composition 1 wt% Pt/X% CeO2-Y% TiO2 (where X and Y range from 0 to 20%) was prepared via impregnation. The effects of different ratios of CeO2/TiO2 on the catalytic activity were examined during the reverse water gas shift reaction (RWGS). The catalytic activities of the Pt-impregnated catalysts were enhanced by increasing CeO2 loading. The activity tests, temperature-programmed reduction via H-2, and step test of an elementary RWGS reaction over the catalysts confirmed that the catalytic activity depends on the number of TiO2 or CeO2 sites, which participate in the RWGS reaction, on the surface of the support. [GRAPHICS] .
引用
收藏
页码：182 / 192
页数：11
相关论文
共 32 条
  • [1] CO2 Hydrogenation Studies on Co and CoPt Bimetallic Nanoparticles Under Reaction Conditions Using TEM, XPS and NEXAFS
    Alayoglu, Selim
    Beaumont, Simon K.
    Zheng, Fan
    Pushkarev, Vladimir V.
    Zheng, Haimei
    Iablokov, Viacheslav
    Liu, Zhi
    Guo, Jinghua
    Kruse, Norbert
    Somorjai, Gabor A.
    [J]. TOPICS IN CATALYSIS, 2011, 54 (13-15) : 778 - 785
  • [2] Stabilization of active Rh2O3 species for catalytic decomposition of N2O on La-, Pr-doped CeO2
    Bueno-Lopez, A.
    Such-Basanez, I.
    Salinas-Martinez de Lecea, C.
    [J]. JOURNAL OF CATALYSIS, 2006, 244 (01) : 102 - 112
  • [3] Study of iron-promoted Cu/SiO2 catalyst on high temperature reverse water gas shift reaction
    Chen, CS
    Cheng, WH
    Lin, SS
    [J]. APPLIED CATALYSIS A-GENERAL, 2004, 257 (01) : 97 - 106
  • [4] Identification of relevant active sites and a mechanism study for reverse water gas shift reaction over Pt/CeO2 catalysts
    Chen, Xiaodong
    Su, Xiong
    Liang, Binglian
    Yang, Xiaoli
    Ren, Xinyi
    Duan, Hongmin
    Huang, Yanqiang
    Zhang, Tao
    [J]. JOURNAL OF ENERGY CHEMISTRY, 2016, 25 (06) : 1051 - 1057
  • [5] Comparative study of CO and CO2 hydrogenation over supported Rh-Fe catalysts
    Gogate, Makarand R.
    Davis, Robert J.
    [J]. CATALYSIS COMMUNICATIONS, 2010, 11 (10) : 901 - 906
  • [6] Spectrokinetic investigation of reverse water-gas-shift reaction intermediates over a Pt/CeO2 catalyst
    Goguet, A
    Meunier, FC
    Tibiletti, D
    Breen, JP
    Burch, R
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (52) : 20240 - 20246
  • [7] A comparative study of the water gas shift reaction over platinum catalysts supported on CeO2, TiO2 and Ce-modified TiO2
    Gonzalez, I. D.
    Navarro, R. M.
    Wen, W.
    Marinkovic, N.
    Rodriguez, J. A.
    Rosa, F.
    Fierro, J. L. G.
    [J]. CATALYSIS TODAY, 2010, 149 (3-4) : 372 - 379
  • [8] Development of Ni-Mo/Al2O3 Catalyst for Reverse Water Gas Shift (RWGS) Reaction
    Kharaji, Abolfazl Gharibi
    Shariati, Ahmad
    Ostadi, Mohammad
    [J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2014, 14 (09) : 6841 - 6847
  • [9] A Novel γ-Alumina Supported Fe-Mo Bimetallic Catalyst for Reverse Water Gas Shift Reaction
    Kharaji, Abolfazl Gharibi
    Shariati, Ahmad
    Takassi, Mohammad Ali
    [J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2013, 21 (09) : 1007 - 1014
  • [10] Effect of Ce/Ti ratio on the catalytic activity and stability of Ni/CeO2-TiO2 catalyst for dry reforming of methane
    Kim, Sung Su
    Lee, Sang Moon
    Won, Jong Min
    Yang, Hee Jae
    Hong, Sung Chang
    [J]. CHEMICAL ENGINEERING JOURNAL, 2015, 280 : 433 - 440
1234