Proton release during successive oxidation steps of the photosynthetic water oxidation process: stoichiometries and pH dependence

Biochemistry ◽  
1991 ◽  
Vol 30 (41) ◽  
pp. 10004-10012 ◽  
Author(s):  
Fabrice Rappaport ◽  
Jerome Lavergne
Keyword(s):  
Water Oxidation ◽  
Oxidation Process ◽  
Ph Dependence ◽  
Proton Release ◽  
Photosynthetic Water Oxidation

The pH dependence of OH radical formation in photo-electrochemical water oxidation with rutile TiO2 single crystals

2015 ◽  
Vol 17 (45) ◽  
pp. 30570-30576 ◽  
Author(s):  
Yukihiro Nakabayashi ◽  
Yoshio Nosaka
Keyword(s):  
Reaction Mechanism ◽  
Single Crystals ◽  
Alkaline Solution ◽  
Water Oxidation ◽  
Oxidation Process ◽  
Ph Dependence ◽  
Experimental Results ◽  
Radical Formation ◽  
Oh Radical ◽  
Rutile Tio2

The experimental results in photoelectrolysis with rutile (100) and (110) TiO2 single crystals support a plausible reaction mechanism that the surface Ti–O–O–Ti structure is an intermediate of water oxidation process, by which mechanism the O2 production becomes favorable in alkaline solution.

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