Nature and Role of Activated Molecular Oxygen Species at the Gold/Titania Interface in the Selective Oxidation of Alcohols

2014 ◽  
Vol 118 (36) ◽  
pp. 20989-21000 ◽  
Author(s):  
Matteo Farnesi Camellone ◽  
Dominik Marx
2001 ◽  
Vol 74 (1) ◽  
pp. 165-172 ◽  
Author(s):  
Nobuyuki Kakiuchi ◽  
Takahiro Nishimura ◽  
Masashi Inoue ◽  
Sakae Uemura

2010 ◽  
Vol 323 (1-2) ◽  
pp. 7-15 ◽  
Author(s):  
Takashi Yasu-eda ◽  
Susumu Kitamura ◽  
Na-oki Ikenaga ◽  
Takanori Miyake ◽  
Toshimitsu Suzuki

Biomolecules ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 258 ◽  
Author(s):  
Pavel Pospíšil ◽  
Ankush Prasad ◽  
Marek Rác

It is well known that biological systems, such as microorganisms, plants, and animals, including human beings, form spontaneous electronically excited species through oxidative metabolic processes. Though the mechanism responsible for the formation of electronically excited species is still not clearly understood, several lines of evidence suggest that reactive oxygen species (ROS) are involved in the formation of electronically excited species. This review attempts to describe the role of ROS in the formation of electronically excited species during oxidative metabolic processes. Briefly, the oxidation of biomolecules, such as lipids, proteins, and nucleic acids by ROS initiates a cascade of reactions that leads to the formation of triplet excited carbonyls formed by the decomposition of cyclic (1,2-dioxetane) and linear (tetroxide) high-energy intermediates. When chromophores are in proximity to triplet excited carbonyls, the triplet-singlet and triplet-triplet energy transfers from triplet excited carbonyls to chromophores result in the formation of singlet and triplet excited chromophores, respectively. Alternatively, when molecular oxygen is present, the triplet-singlet energy transfer from triplet excited carbonyls to molecular oxygen initiates the formation of singlet oxygen. Understanding the mechanism of the formation of electronically excited species allows us to use electronically excited species as a marker for oxidative metabolic processes in cells.


2021 ◽  
Author(s):  
Xin-Tong Yi ◽  
Tong Zhao ◽  
Fei Wang ◽  
Jie Xu ◽  
Bing Xue

Liquid-phase selective oxidation of alcohols using molecular oxygen as an oxidant is a promising and sustainable strategy for the manufacture of aldehydes or ketones. The supported noble metal nanoparticles have...


2008 ◽  
Vol 344 (1-2) ◽  
pp. 150-157 ◽  
Author(s):  
Lu-Cun Wang ◽  
Lin He ◽  
Qian Liu ◽  
Yong-Mei Liu ◽  
Miao Chen ◽  
...  

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