Influence of the preparation method in the metal-support interaction and reducibility of Ni-Mg-Al based catalysts for methane steam reforming

被引：76

作者：

Azancot, Lola ^{[1
]}

Bobadilla, Luis F. ^{[1
]}

Santos, Jose L. ^{[1
]}

Cordoba, Jose M. ^{[1
]}

Centeno, Miguel A. ^{[1
]}

Odriozola, Jose A. ^{[1
]}

机构：

[1] Univ Seville, Dept Quim Inorgan, Inst Ciencia Mat Sevilla, Ctr Mixto,CSIC, Ave Americo Vespucio 49, Seville 41092, Spain

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 36期

关键词：

Ni-Mg-Al catalysts; Metal-support interaction; Reducibility; Methane steam reforming; H-2; production; NI/MGAL2O4; CATALYST; CALCINATION TEMPERATURE; HYDROGEN-PRODUCTION; PARTIAL OXIDATION; OXIDE CATALYSTS; SYNTHESIS GAS; COMBINED H2O; COKE; DECOMPOSITION; CH4;

D O I：

10.1016/j.ijhydene.2019.05.167

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：

Ni-Mg-Al based catalysts were prepared using different preparation methods (impregnation, impregnation-coprecipitation and coprecipitation) and tested in steam reforming of methane. The differences observed in catalytic activity were directly correlated to the physicochemical properties and the different degree of Ni-Mg-Al interaction. The reducibility results showed that the catalyst prepared by the impregnation-coprecipitation method presented the most optimal metal-support interaction to reduce the NiO preserving the Ni-0 particles highly dispersed on the support surface. These results demonstrate that the structure and catalytic performance of Ni-Mg-Al based catalysts can be tuned by controlling the metal-support interaction through of the preparation method. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：19827 / 19840

页数：14

共 52 条

[1] Tailoring the Catalytic Properties of Metal Nanoparticles via Support Interactions [J].