scholarly journals Three-dimensional ordered macroporous perovskite-type La1–K NiO3 catalysts with enhanced catalytic activity for soot combustion: the Effect of K-substitution

2019 ◽  
Vol 40 (5) ◽  
pp. 722-732 ◽  
Author(s):  
Xuelei Mei ◽  
Jing Xiong ◽  
Yuechang Wei ◽  
Chujun Wang ◽  
Qiangqiang Wu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Three Dimensional ◽  
Soot Combustion ◽  
Ordered Macroporous ◽  
Perovskite Type

Three-dimensionally ordered macroporous spinel-type MCr2O4 (M = Co, Ni, Zn, Mn) catalysts with highly enhanced catalytic performance for soot combustion

2015 ◽  
Vol 5 (9) ◽  
pp. 4594-4601 ◽  
Author(s):  
Jinguo Wang ◽  
Gaoyang Yang ◽  
Li Cheng ◽  
Eun Woo Shin ◽  
Yong Men
Keyword(s):  
Catalytic Activity ◽  
Three Dimensional ◽  
Catalytic Performance ◽  
Soot Combustion ◽  
Spinel Type ◽  
Ordered Macroporous

MCr2O4 catalysts with three-dimensional ordered macroporous structures displayed superior catalytic activity for soot combustion to their bulk counterparts.

Facile synthesis of three-dimensional ordered macroporous Sr1−xKxTiO3 perovskites with enhanced catalytic activity for soot combustion

2018 ◽  
Vol 8 (21) ◽  
pp. 5462-5472 ◽  
Author(s):  
Peng Zhao ◽  
Nengjie Feng ◽  
Fan Fang ◽  
Geng Liu ◽  
Li Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Three Dimensional ◽  
Catalytic Performance ◽  
Soot Combustion ◽  
Facile Synthesis ◽  
Ordered Macroporous

The appropriate incorporation of potassium into 3DOM SrTiO3 perovskites effectively improved the catalytic performance for soot combustion.

Three-dimensionally ordered macroporous LaCoxFe1−xO3 perovskite-type complex oxide catalysts for diesel soot combustion

2010 ◽  
Vol 153 (3-4) ◽  
pp. 136-142 ◽  
Author(s):  
Junfeng Xu ◽  
Jian Liu ◽  
Zhen Zhao ◽  
Jianxiong Zheng ◽  
Guizhen Zhang ◽  
...  
Keyword(s):  
Complex Oxide ◽  
Diesel Soot ◽  
Oxide Catalysts ◽  
Soot Combustion ◽  
Type Complex ◽  
Ordered Macroporous ◽  
Perovskite Type

Preparation of Three-Dimensional Ordered Macroporous Perovskite-Type LaFeO3 Oxides

2011 ◽  
Vol 418-420 ◽  
pp. 317-322 ◽  
Author(s):  
Kun Zhao ◽  
Fang He ◽  
Xin Ai Li ◽  
Zhen Huang ◽  
Hai Bing Li
Keyword(s):  
Three Dimensional ◽  
Precursor Solution ◽  
Ethanol Solution ◽  
Polymerization Time ◽  
Polystyrene Spheres ◽  
Metal Nitrates ◽  
Styrene Concentration ◽  
Ordered Macroporous ◽  
Soap Free Emulsion Polymerization ◽  
Perovskite Type

Polystyrene spheres were prepared by soap free emulsion polymerization method. The effects of styrene concentration, polymerization time and self-assemble methods on the diameter of the polystyrene spheres were investigated. Different size of polystyrene microspheres could be obtained by changing styrene concentration and polymerization time. Polystyrene templates with good uniform and highly ordered can be assembled by means of vertical deposition method. Based on this template, three-dimensional ordered macroporous (3DOM) perovskite-type oxides LaFeO3 were successfully prepared which were confirmed by powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). It was also found that 1mol/L metal precursor solution which used ethanol solution of metal nitrates with citric acid addition gave the best 3DOM perovskite-type LaFeO3 oxides. The pores are uniform, flexible and arranged in a highly ordered form.

Perovskite-Type Complex Oxides Catalyst Composed of Rare Earth-Alkaline Earth-Transition Metal Elements for Soot Combustion in the NO and O2 Atmosphere

2011 ◽  
Vol 391-392 ◽  
pp. 960-963
Author(s):  
Hong Liang ◽  
Shu Hua Li ◽  
Yan Xia Hong ◽  
Zi Li Liu ◽  
Wei Ming Lin
Keyword(s):  
Catalytic Activity ◽  
Alkaline Earth ◽  
Sol Gel ◽  
Activity Analysis ◽  
Soot Combustion ◽  
Type Complex ◽  
Oxygen Conditions ◽  
Ft Ir ◽  
Perovskite Type ◽  
Perovskite Type Structure

La0.85K0.15CoO3perovskite-tpye catalyst was prepared by a sol-gel method and characterized by catalytic activity analysis to study the effect of NO and O2on the combustion of soot. The catalytic activity of La0.85K0.15CoO3Catalyst was promoted with NO. No matter lean or rich oxygen conditions, the La0.85K0.15CoO3catalyst could ignite soot at low temperature. The results of XRD and FT-IR showed that La0.85K0.15CoO3catalyst has the desired perovskite-type structure, ABO3.

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