Selective substitution of Ni by Ti in LaNiO3 perovskites: A parameter governing the oxy-carbon dioxide reforming of methane

被引：15
|
作者：
Nuvula, Sreelatha [1 ]
Sagar, T. V. [1 ]
Valluri, Durga Kumari [1 ]
Prasad, P. S. Sai [1 ]
机构：
[1] Indian Inst Chem Technol, Dept Inorgan & Phys Chem, Hyderabad 500007, Andhra Pradesh, India
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 08期
关键词：
Oxygen; Partial substitution; LaNi1-xTixO3; perovskites; Syngas; SYNGAS PRODUCTION; PARTIAL OXIDATION; CATALYSTS; CO2; STABILITY; ALUMINA; O-2;
D O I：
10.1016/j.ijhydene.2017.08.180
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：
A series of LaNi1-xTixO3 perovskite catalysts varying titanium (x = 0.0, 0.2, 0.4, 0.5, 0.6 and 1.0) are synthesized and investigated using BET, XRD, TPR, TEM, FT-IR and XPS. The catalysts were evaluated for oxy-carbon dioxide reforming of methane at 800 degrees C under atmospheric pressure maintaining CO2/CH4/O-2 ratio 0.8/1.0/0.2. LaNi0.5Ti0.5O3 is showing typical stability with gradual H-2 consumption in TPR. The stability of these catalysts is supported by 0 1s binding energies wherein it is clearly evident that incorporation of Ti stabilized LaNiO3 generating suitable catalysts in the range of x = 0.4-0.6 with high performance. (C) 2017 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.
引用
收藏
页码：4136 / 4142
页数：7
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