Role of Cryptomelane in Surface-Adsorbed Oxygen and Mn Chemical Valence in MnOx during the Catalytic Oxidation of Toluene

2019 ◽  
Vol 123 (28) ◽  
pp. 17255-17264 ◽  
Author(s):  
Xuejun Zhang ◽  
Zi’ang Ma ◽  
Zhongxian Song ◽  
Heng Zhao ◽  
Wei Liu ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Adsorbed Oxygen

Role of Hydroxyl Groups in Low-Temperature CO Catalytic Oxidation over Zn4Si2O7(OH)2 Nanowire-Supported Gold Nanoparticles

2018 ◽  
Vol 122 (44) ◽  
pp. 25456-25466 ◽  
Author(s):  
Jing-Jing Li ◽  
Bao-Lin Zhu ◽  
Gui-Chang Wang ◽  
Zun-Feng Liu ◽  
Wei-Ping Huang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Low Temperature ◽  
Catalytic Oxidation ◽  
Hydroxyl Groups ◽  
Co Catalytic Oxidation ◽  
Supported Gold Nanoparticles ◽  
Supported Gold

Promotional role of Mn doping on catalytic oxidation of VOCs over mesoporous TiO2 under vacuum ultraviolet (VUV) irradiation

2018 ◽  
Vol 220 ◽  
pp. 78-87 ◽  
Author(s):  
Yajie Shu ◽  
Jian Ji ◽  
Ying Xu ◽  
Jiguang Deng ◽  
Haibao Huang ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Vacuum Ultraviolet ◽  
Mesoporous Tio2 ◽  
Mn Doping

Metalloporphyrin catalytic oxidations of hydrocarbons by H2O2

2000 ◽  
Vol 04 (06) ◽  
pp. 599-604 ◽  
Author(s):  
ANTÓNIO M. d'A. ROCHA GONSALVES ◽  
ARMÉNIO C. SERRA
Keyword(s):  
Hydrogen Peroxide ◽  
Benzoic Acid ◽  
Catalytic Oxidation ◽  
Phase System ◽  
Two Phase ◽  
Catalytic Oxidations ◽  
Oxidation Of Hydrocarbons ◽  
Oxygen Donor ◽  
Catalyst Efficiency

The metalloporphyrin catalytic oxidation of hydrocarbons using dilute hydrogen peroxide as oxygen donor with a two-phase system in the presence of an excess of benzoic acid is studied. Porphyrins derived from meso-tetrakis(2,6-dichlorophenyl)porphyrin and bearing sulfonamide substituents at β or meso positions and halogens at β positions were used. The system allowed for very efficient catalytic epoxidations and hydroxylations of hydrocarbons. It is proved that the excess of benzoic acid is critical to the catalyst efficiency and stability. The role of the lipophilic acid in this system is discussed.

scholarly journals Catalytic oxidation of CO on metals involving an ionic process in the presence of H2O: the role of promoting materials

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 949-959 ◽  
Author(s):  
Ken-Ichi Tanaka ◽  
Hong He ◽  
Youzhu Yuan
Keyword(s):  
Catalytic Oxidation ◽  
Oxidation Of Co ◽  
Catalytic Oxidation Of Co ◽  
Ionic Process ◽  
Messenger Molecule

A new catalytic oxidation of CO is enhanced by H2O molecule on the Pt and Au with specific promoting materials where the rate-determining reaction of HCOO(a) + OH → CO2 + H2O is promoted by repeated contribution of OH− anion via messenger molecule H2O.

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