Facile preparation of mesoporous Cu–Sn solid solutions as active catalysts for CO oxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (33) ◽  
pp. 25755-25764 ◽  
Author(s):  
Yarong Li ◽  
Honggen Peng ◽  
Xianglan Xu ◽  
Yue Peng ◽  
Xiang Wang
Keyword(s):  
Solid Solution ◽  
Co Oxidation ◽  
Water Vapour ◽  
Solid Solutions ◽  
Precipitation Method ◽  
Oxidation Activity ◽  
Facile Preparation ◽  
Co Precipitation

A mesoporous Cu0.5Sn0.5Oy solid solution catalyst with Caramel-Treats-like morphology prepared easily by co-precipitation method exhibits remarkably improved CO oxidation activity and potent resistance to water vapour deactivation.

scholarly journals Synthesis of Ce1−xPdxO2−δ Solid Solution in Molten Nitrate

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 640
Author(s):  
Hideaki Sasaki ◽  
Keisuke Sakamoto ◽  
Masami Mori ◽  
Tatsuaki Sakamoto
Keyword(s):  
Electron Microscopy ◽  
Solid Solution ◽  
Solid Solutions ◽  
Photoelectron Spectroscopy ◽  
Synthesis Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Co Precipitation ◽  
Ionic States

CeO2-based solid solutions in which Pd partially substitutes for Ce attract considerable attention, owing to their high catalytic performances. In this study, the solid solution (Ce1−xPdxO2−δ) with a high Pd content (x ~ 0.2) was synthesized through co-precipitation under oxidative conditions using molten nitrate, and its structure and thermal decomposition were examined. The characteristics of the solid solution, such as the change in a lattice constant, inhibition of sintering, and ionic states, were examined using X-ray diffraction (XRD), scanning electron microscopy–energy-dispersive X-ray spectroscopy (SEM−EDS), transmission electron microscopy (TEM)−EDS, and X-ray photoelectron spectroscopy (XPS). The synthesis method proposed in this study appears suitable for the easy preparation of CeO2 solid solutions with a high Pd content.

Uniform and Porous Ce1–xZnxO2−δ Solid Solution Nanodisks: Preparation and Their CO Oxidation Activity

2012 ◽  
Vol 116 (24) ◽  
pp. 13127-13132 ◽  
Author(s):  
Sheng-Liang Zhong ◽  
Lin-Fei Zhang ◽  
Lei Wang ◽  
Wei-Xin Huang ◽  
Cong-Min Fan ◽  
...  
Keyword(s):  
Solid Solution ◽  
Co Oxidation ◽  
Oxidation Activity

scholarly journals Structure, electronic properties, morphology evolution, and photocatalytic activity in PbMoO4 and Pb1−2xCaxSrxMoO4 (x = 0.1, 0.2, 0.3, 0.4 and 0.5) solid solutions

2020 ◽  
Vol 22 (44) ◽  
pp. 25876-25891
Author(s):  
E. O. Gomes ◽  
L. Gracia ◽  
A. A. G. Santiago ◽  
R. L. Tranquilin ◽  
F. V. Motta ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Electronic Properties ◽  
Solid Solutions ◽  
Precipitation Method ◽  
Morphology Evolution ◽  
Water Based ◽  
Co Precipitation ◽  
First Time

In this work PbMoO4 and Pb1−2xCaxSrxMoO4 (x = 0.1, 0.2, 0.3, 0.4 and 0.5) solid solutions have been successfully prepared, for the first time, by a simple co-precipitation method and the as-synthesized samples were subjected to a water-based reflux treatment.

Iron Doped Lanthanum Stannate Pyrochlores (La2Sn2-XFeXO7) for the Simultaneous Catalytic Removal NOx and Soot

2011 ◽  
Vol 306-307 ◽  
pp. 1468-1472 ◽  
Author(s):  
Zhong Peng Wang ◽  
Zi Zi Wang ◽  
Xiao Wang ◽  
Qian Li ◽  
Zong Gang Mu ◽  
...  
Keyword(s):  
Soot Oxidation ◽  
Redox Properties ◽  
Precipitation Method ◽  
Oxidation Activity ◽  
Structure Defects ◽  
Constant Ph ◽  
High Maximum ◽  
Co Precipitation ◽  
Catalytic Removal ◽  
Soot Oxidation Activity

A series of La2Sn2-xFexO7 (x=0, 0.2, 0.6, 1.0, 1.4, 1.8, 2.0) catalysts were prepared by a constant pH co-precipitation method, and their catalytic activity was investigated for simultaneous removal of NOx and soot. The incorporation of Fe strongly influences the crystal phase composition, surface area and redox properties of the catalysts. All the catalysts displayed soot oxidation activity with nearly 100% selectivity towards CO2. The doped solids exhibit higher activities than the undoped one, which may be related to the enhancement of reducibility derived from structure defects induced by doping. LSF0.6 may be a good catalyst with high soot oxidation activity (Ti = 334 °C) and a high maximum productivity of N2 (PN2= 12.4%).

Elucidating the promotional effects of niobia on SnO2 for CO oxidation: developing an XRD extrapolation method to measure the lattice capacity of solid solutions

2016 ◽  
Vol 6 (14) ◽  
pp. 5280-5291 ◽  
Author(s):  
Xianglan Xu ◽  
Fang Liu ◽  
Xue Han ◽  
Yuanyuan Wu ◽  
Wenming Liu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Co Oxidation ◽  
Solid Solutions ◽  
Extrapolation Method

Using an XRD extrapolation method, the SnO2 lattice capacity for Nb2O5 is quantified. A Sn–Nb solid solution without excess Nb2O5 is promising for CO oxidation.

Solid-Solution Alloying of Immiscible Ru and Cu with Enhanced CO Oxidation Activity

2017 ◽  
Vol 139 (13) ◽  
pp. 4643-4646 ◽  
Author(s):  
Bo Huang ◽  
Hirokazu Kobayashi ◽  
Tomokazu Yamamoto ◽  
Syo Matsumura ◽  
Yoshihide Nishida ◽  
...  
Keyword(s):  
Solid Solution ◽  
Co Oxidation ◽  
Oxidation Activity

scholarly journals One-step chemical bath co-precipitation method to prepare high hydrogen-producing active ZnxCd1-xS solid solution with adjustable band structure

2021 ◽  
Vol 56 (9) ◽  
pp. 5717-5729
Author(s):  
Lili Lu ◽  
Yongjin Ma ◽  
Rui Dong ◽  
Pengfei Tan ◽  
Yi Chen ◽  
...  
Keyword(s):  
Band Structure ◽  
Solid Solutions ◽  
Ammonia Solution ◽  
Absorption Capacity ◽  
Precipitation Method ◽  
High Hydrogen ◽  
One Step ◽  
Microstructure Morphology ◽  
Co Precipitation ◽  
Optimum Water

AbstractA series of ZnxCd1−xS solid solutions were synthesized through a simple one-step chemical bath co-precipitation route. The microstructure, morphology, composition and optical properties had been thoroughly investigated. The results showed that the as-obtained ZnxCd1−xS samples exhibited monodisperse spherical feature. These monodisperse ZnxCd1−xS spheres were composed of a large number of 5–10 nm crystal grains. The chemical composition of the ZnxCd1−xS solid solutions can be controlled by adjusting the ratio of Zn source to Cd source and the dosage of ammonia solution. Meanwhile, the energy band structure and photocatalytic properties can be optimized. The photocatalysis experiment results revealed that the as-synthesized Zn0.30Cd0.70S sample exhibited optimum water splitting performance. The satisfactory hydrogen evolution rate (HER) of Zn0.30Cd0.70S reached 27.004 mmol g−1 h−1 even without any cocatalysts, which was more than 48 times that of pure CdS (0.561 mmol g−1 h−1). This enhancing effect can owe to the balance between light absorption capacity and redox potential caused by the incorporation of Zn in the ZnxCd1−xS solid solutions.

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