Preparation of metal oxide supported catalysts and their utilization for understanding the effect of a support on the catalytic activity

2018 ◽  
Vol 42 (1) ◽  
pp. 402-410 ◽  
Author(s):  
Jhumur Seth ◽  
Prashant Dubey ◽  
Vijay R. Chaudhari ◽  
Bhagavatula L. V. Prasad

A convenient way of anchoring transition metal nanoparticles onto metal oxides by means of a toluene mediated sol–gel method is described.

1999 ◽  
Vol 14 (1) ◽  
pp. 5-7 ◽  
Author(s):  
Takuya Hori ◽  
Noriyuki Kuramoto ◽  
Hideyuki Tagaya ◽  
Masa Karasu ◽  
Jun-ichi Kadokawa ◽  
...  

Conducting thin films were prepared by entrapping water-suspended polyaniline into a silica matrix by a sol-gel route. Without metal oxide, the conductivity of the film decreased after heat treatment. However, in the presence of metal oxides such as TiO2 and Al2O3, the conductivity increased after heat treatment at 85 °C and reached 17 Scm−1 The conductivity of the film depended on the kinds and amounts of metal oxides and the temperature of heat treatment.


2006 ◽  
Vol 17 (2) ◽  
pp. 257-264 ◽  
Author(s):  
Hugo B. Suffredini ◽  
Giancarlo R. Salazar-Banda ◽  
Sônia T. Tanimoto ◽  
Marcelo L. Calegaro ◽  
Sergio A. S. Machado ◽  
...  

Author(s):  
Mo Liu ◽  
Xiaoli Yang ◽  
ZiMeng Tian ◽  
Huimin Wang ◽  
Liangtao Yin ◽  
...  

A series of LaCoO3 pervoskite catalysts substituted by Sr in A site (La1-xSrxCoO3) were prepared via a facile sol-gel method. The catalytic activity of these pervoskite catalysts for the deep...


2018 ◽  
Vol 5 (1) ◽  
pp. 49-58 ◽  
Author(s):  
Yu.S. Demidova ◽  
I.L. Simakova ◽  
E.V. Suslov ◽  
K.P. Volcho ◽  
N.F. Salakhutdinov ◽  
...  

Abstract In the current work gold catalysts supported on both commercial oxides and oxides synthesized by the sol-gel method were used for the one-pot alcohol amination of myrtenol. In general, utilization of metal oxides synthesized by the sol-gel method as the gold catalyst support enhanced the knowledge regarding key parameters determining catalytic behavior. Synthesized alumina was characterized by stronger acid sites favoring primary amine accumulation on the catalyst surface, as compared to the commercial oxide. Utilization of mixed metal oxides synthesized by the sol-gel method resulted in the non-additive behavior of different oxides enhancing the catalytic activity. Introduction of ceria into alumina modified the support basicity resulting in more efficient alcohol activation.


2020 ◽  
Vol 35 (22) ◽  
pp. 3067-3078
Author(s):  
Xiaofei Qu ◽  
Xiaohui Zhao ◽  
Meihua Liu ◽  
Zhaoqun Gao ◽  
Donglin Yang ◽  
...  

Abstract


2019 ◽  
Vol 7 (17) ◽  
pp. 4981-4987 ◽  
Author(s):  
Ruiyu Bao ◽  
Chen Chen ◽  
Jianxin Xia ◽  
Huiying Chen ◽  
Hua Li

The surface morphology and particle size of materials can be controlled using DEP technology.


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