Selective catalytic oxidation of benzene to phenol by a vanadium oxide nanorod (Vnr) catalyst in CH3CN using H2O2(aq) and pyrazine-2-carboxylic acid (PCA)

2019 ◽  
Vol 43 (45) ◽  
pp. 17819-17830 ◽  
Author(s):  
Wondemagegn Hailemichael Wanna ◽  
Damodar Janmanchi ◽  
Natarajan Thiyagarajan ◽  
Ravirala Ramu ◽  
Yi-Fang Tsai ◽  
...  

A vanadium oxide nanorod (Vnr) catalyst has been synthesized without using surfactants through crystallization, which is highly active for benzene to phenol oxidation.

2020 ◽  
Vol 49 (8) ◽  
pp. 2559-2569 ◽  
Author(s):  
Shuang Wang ◽  
Shuying Li ◽  
Rui Shi ◽  
Xinyu Zou ◽  
Zhijuan Zhang ◽  
...  

A porous V2O5–Al13 nanohybrid based on the self-assembly of Keggin Al13 and exfoliated V2O5 nanosheets for selective oxidation of alcohols.


2016 ◽  
Vol 411 ◽  
pp. 372-376 ◽  
Author(s):  
Atsushi Okemoto ◽  
Yo-hei Tsukano ◽  
Arisa Utsunomiya ◽  
Keita Taniya ◽  
Yuichi Ichihashi ◽  
...  

2011 ◽  
Vol 12 (10) ◽  
pp. 859-865 ◽  
Author(s):  
Hongjing Wu ◽  
Liuding Wang ◽  
Jiaoqiang Zhang ◽  
Zhongyuan Shen ◽  
Jinghui Zhao

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Gan ◽  
Jingxiu Yang ◽  
David Morris ◽  
Xuefeng Chu ◽  
Peng Zhang ◽  
...  

AbstractActivation of O2 is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is adopted to propose an efficient strategy to develop highly active and stable catalysts for molecular O2 activation. Carbon nitride with nitrogen vacancies is prepared to serve as a support as well as electron sink to construct a synergistic catalyst with Pt nanoparticles. Extensive characterizations combined with the first-principles calculations reveal that nitrogen vacancies with excess electrons could effectively stabilize metallic Pt nanoparticles by strong p-d coupling. The Pt atoms and the dangling carbon atoms surround the vacancy can synergistically donate electrons to the antibonding orbital of the adsorbed O2. This synergistic catalyst shows great enhancement of catalytic performance and durability in toluene oxidation. The introduction of electron-rich non-oxide substrate is an innovative strategy to develop active Pt-based oxidation catalysts, which could be conceivably extended to a variety of metal-based catalysts for catalytic oxidation.


RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12532-12542
Author(s):  
HanShuang Liu ◽  
KaiJun Wang ◽  
XiaoYan Cao ◽  
JiaXin Su ◽  
Zhenggui Gu

The La2O3–CuO–MgO catalyst acts on the oxidation of cumene and shows excellent catalytic activity through the coordination of surface and interior.


Studies of the catalytic oxidation of benzene to maleic anhydride and carbon dioxide over vanadia/molybdena catalysts show that the major part of the reaction involves interacting gas and gas-solid processes. The results are consistent with a mechanism in which a benzeneoxygen adduct is formed catalytically, desorbs and then reacts to give maleic anhydride entirely in the gas phase. On the basis of this proposed mechanism, the kinetics of individual reactions have been investigated in some depth. The over-oxidation of maleic anhydride has been found to be not significant under the conditions of reaction. The kinetic relationships governing the homogeneous decomposition of the adduct and the oxidation of the adduct to maleic anhydride and to carbon dioxide have been established. The results show that essentially all of the anhydride originates from mixed gas-solid/gas reaction while substantial amounts of carbon dioxide are produced entirely catalytically.


PLoS ONE ◽  
2017 ◽  
Vol 12 (8) ◽  
pp. e0182424 ◽  
Author(s):  
Lei Zhang ◽  
Xin Wen ◽  
Zhenhua Ma ◽  
Lei Zhang ◽  
Xiangling Sha ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document