Alumina supported Au/Y-doped ceria catalysts for pure hydrogen production via PROX

被引：23
|
作者：
Ilieva, L. [1 ]
Petrova, P. [1 ,2 ]
Pantaleo, G. [2 ]
Zanella, R. [3 ]
Sobczak, J. W. [4 ]
Lisowski, W. [4 ]
Kaszkur, Z. [4 ]
Munteanu, G. [5 ]
Yordanova, I. [1 ]
Liotta, L. F. [2 ]
Venezia, A. M. [2 ]
Tabakova, T. [1 ]
机构：
[1] Bulgarian Acad Sci, Inst Catalysis, Acad G Bonchev St,Block 11, BU-1113 Sofia, Bulgaria
[2] CNR, ISMN, I-90146 Palermo, Italy
[3] Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Circuito Exterior S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
[4] PAS, Inst Phys Chem, Kasprzaka 44-52, PL-01224 Warsaw, Poland
[5] Romanian Acad, Ilie Murgulescu Inst Phys Chem, Bucharest 060021, Romania
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 01期
关键词：
Gold catalysts; Y-doped ceria on alumina; PROX; PREFERENTIAL CO OXIDATION; GAS SHIFT REACTION; GOLD CATALYSTS; SELECTIVE OXIDATION; OXIDE; PERFORMANCE; ADSORPTION; STREAM; H-2; REDUCTION;
D O I：
10.1016/j.ijhydene.2018.03.005
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：
Gold catalysts on Y-doped ceria dispersed on high surface area gamma-Al2O3 were synthesized and tested in preferential CO oxidation in hydrogen rich stream (PROX). The effect of ceria loading (10, 20 or 30 wt%) was studied. The gold catalyst with the lowest ceria amount exhibited the highest PROX activity. The addition of Y2O3 (1 wt%) led to improved performance. The most favorable effect was observed in the sample with 20 wt% ceria amount. This gold catalyst showed good PROX activity and stability in the presence of CO2 and water. Catalysts characterization by XRD, HRTEWHAADF, XPS and H-2-TPR was used to elucidate the relationship between the chemical composition, state of gold, support features and catalytic properties. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：233 / 245
页数：13
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