Effect of samarium and praseodymium addition on water gas shift performance of Co/CeO2 catalysts

被引:18
作者
Tepamatr, Pannipa [1 ]
Laosiripojana, Navadol [2 ]
Sesuk, Thanathon [3 ]
Charojrochkul, Sumittra [3 ]
机构
[1] Thammasat Univ, Fac Sci & Technol, Pathumthani, Pathum Thani 12120, Thailand
[2] King Mongkuts Univ Technol Thonburi, Joint Grad Sch Energy & Environm, Bangkok 10140, Thailand
[3] NSTDA, Natl Met & Mat Technol Ctr, Pathum Thani 12120, Thailand
关键词
Water gas shift; Hydrogen production; Co; Ceria; Sm; Rare earths; HYDROGEN; ETHANOL; CEO2; SULFUR; OXIDES;
D O I
10.1016/j.jre.2019.12.003
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The performance of Co supported over ceria and doped ceria (by Sm and Pr) catalysts towards the water gas shift reaction was studied for the removal of CO from syngas to produce high purity hydrogen for a fuel cell application. It is found that 1%Co/Ce-5%Sm-O yields the highest catalytic performance towards this reaction compared with undoped-Sm and doped-Pr. An addition of Sm onto ceria support reveals a small crystallite size with high surface area and well dispersed cobalt on ceria surface. Moreover, a presence of Sm increases the reducibility of cobalt species and surface oxygen. The positive effect of Sm on increasing the WGS activity of Co/CeO2 is because Sm contributes to the reduction of Ce4+ to Ce3+ which gives rise to oxygen vacancies and facilitates the electron movement at the surface leading to an ease of surface reduction. (C) 2020 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:1201 / 1206
页数:6
相关论文
共 50 条
[31]   Effect of Rare Earth Oxide on the Catalytic Performance of Au/CeO2 Catalyst for Water-Gas Shift Reaction [J].
Yang Shenyong ;
Zhan Yingying ;
Chen Chongqi ;
Cao Yanning ;
Lin Xingyi ;
Zheng Qi .
CHINESE JOURNAL OF CATALYSIS, 2009, 30 (07) :666-672
[32]   Co/CeO2 for ethanol steam reforming: effect of ceria morphology [J].
Wang Hong ;
Zhang Lijuan ;
Li Miao ;
Liu Yuan ;
Bai Xue .
JOURNAL OF RARE EARTHS, 2013, 31 (06) :565-571
[33]   Co/CeO2 catalysts for steam reforming of ethanol [J].
Wang Hong ;
Liu Pengxiang ;
Liu Yuan ;
Qin Yongning .
CHINESE JOURNAL OF CATALYSIS, 2006, 27 (11) :976-982
[34]   Effect of the CeO2 synthesis method on the behaviour of Pt/CeO2 catalysis for the water-gas shift reaction [J].
Pastor-Perez, L. ;
Ramos-Fernandez, E. V. ;
Sepulveda-Escribano, A. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (39) :21837-21846
[35]   Structural and chemical state of doped and impregnated mesoporous Ni/CeO2 catalysts for the water-gas shift [J].
Voychok, Dimitriy ;
Guild, Curtis J. ;
Llorca, Jordi ;
Palomino, Robert M. ;
Waluyo, Iradwikanari ;
Rodriguez, Jose A. ;
Suib, Steven L. ;
Senanayake, Sanjaya D. .
APPLIED CATALYSIS A-GENERAL, 2018, 567 :1-11
[36]   Preparation of mesoporous CeO2 and monodispersed NiO particles in CeO2, and enhanced selectivity of NiO/CeO2 for reverse water gas shift reaction [J].
Lu, Baowang ;
Kawamoto, Katsuya .
MATERIALS RESEARCH BULLETIN, 2014, 53 :70-78
[37]   Water gas shift reaction on carbon-supported Pt catalysts promoted by CeO2 [J].
Buitrago, R. ;
Ruiz-Martinez, J. ;
Silvestre-Albero, J. ;
Sepulveda-Escribano, A. ;
Rodriguez-Reinoso, F. .
CATALYSIS TODAY, 2012, 180 (01) :19-24
[38]   Effect of molybdenum addition on supported platinum catalysts for the water-gas shift reaction [J].
Williams, W. Damion ;
Bollmann, Luis ;
Miller, Jeffrey T. ;
Delgass, W. Nicholas ;
Ribeiro, Fabio H. .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2012, 125 :206-214
[39]   Highly Active Ni/xNa/CeO2 Catalyst for the Water Gas Shift Reaction: Effect of Sodium on Methane Suppression [J].
Ang, M. L. ;
Oemar, U. ;
Saw, E. T. ;
Mo, L. ;
Kathiraser, Y. ;
Chia, B. H. ;
Kawi, S. .
ACS CATALYSIS, 2014, 4 (09) :3237-3248
[40]   Promotion effect of Nb5+ for Cu/CeO2 water-gas shift reaction catalyst by generating mobile electronic carriers [J].
Lin, Xingyi ;
Chen, Chongqi ;
Ma, Juntao ;
Fang, Xing ;
Zhan, Yingying ;
Zheng, Qi .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (27) :11847-11852