LaNixFe1-xO3 (0 ≤ x ≤ 1) as photothermal catalysts for hydrocarbon fuels production from CO2 and H2O

被引：21
|
作者：
Zheng, Dongmei [1 ]
Wei, Guohui [1 ]
Xu, Lijuan [1 ]
Guo, Qiangsheng [2 ]
Hu, Jianfeng [3 ]
Sha, Na [2 ]
Zhao, Zhe [1 ,4 ]
机构：
[1] Shanghai Inst Technol, Sch Mat Sci & Engn, Shanghai 201418, Peoples R China
[2] Shanghai Inst Technol, Sch Chem & Environm Engn, Shanghai 201418, Peoples R China
[3] Shanghai Univ, Sch Mat Scinece & Engn, 99 Shangda Rd, Shanghai 200444, Peoples R China
[4] KTH Royal Inst Technol, Dept Mat Sci & Engn, SE-10044 Stockholm, Sweden
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2019年 / 377卷
基金：
国家重点研发计划;
关键词：
LaNiO3; LaFeO3; Photothermal catalysis; CO2; reduction; PHOTOCATALYTIC REDUCTION; HYDROGEN-PRODUCTION; LANIO3; PEROVSKITE; WATER; PROPERTY; CH4; PHOTOREDUCTION; OXIDATION; EFFICIENT; METHANE;
D O I：
10.1016/j.jphotochem.2019.03.045
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：
LaNixFe1-xO3 perovskite compounds (x = 0, 0.2, 0.4, 0.6, 0.8, 1.0) were successfully synthesized by a sol-gel combustion method. The crystal structure, morphology, BET surface area, oxygen vacancies, band gap and catalytic properties of the catalyst were characterized in detail. The results showed that LaNi0.4Fe0.6O3 compound exhibits the best photothermal catalytic performance. Under the same catalytic conditions (350 degrees C + Vislight), CH4 and CH3OH yields are about 3.5 and 4.0 times, 1.8 and 2.1 times of that of LaFeO3 and LaNiO3. It was found that all the solid solutions possesses better catalytic properties than the pure end compounds. The doping of Ni lead to a significant modification with the quantity of oxygen vacancies and band gaps. These findings may further broaden the materials scope for photothermal conversion of CO2 and H2O.
引用
收藏
页码：182 / 189
页数：8
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