Synchronous Current Oscillations in Electrochemical Reduction Reactions on Two Platinum Electrodes in Sulfuric Acid Solution Containing Hydrogen Peroxide

1996 ◽  
Vol 25 (6) ◽  
pp. 463-464 ◽  
Author(s):  
Yoshiharu Mukouyama ◽  
Hayato Hommura ◽  
Toshihiko Matsuda ◽  
Shinji Yae ◽  
Yoshihiro Nakato
Keyword(s):  
Hydrogen Peroxide ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Electrochemical Reduction ◽  
Sulfuric Acid Solution ◽  
Platinum Electrodes ◽  
Reduction Reactions ◽  
Current Oscillations

Photolysis of cerium/thallous solutions. Enhanced reduction rate in the presence of titanium dioxide

1983 ◽  
Vol 36 (1) ◽  
pp. 191 ◽  
Author(s):  
RW Matthews
Keyword(s):  
Hydrogen Peroxide ◽  
Titanium Dioxide ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Hydroxyl Radical ◽  
Sulfuric Acid Solution ◽  
Reduction Rate ◽  
Aqueous Suspensions ◽  
Dilute Sulfuric Acid

Aqueous suspensions of titanium dioxide (anatase) in dilute sulfuric acid solution containing ceric and thallous ions have been photolysed. The presence of TiO2 enhances the reduction rate by at least 40%. The observations are consistent with the formation of an additional yield of oxidizing radicals in the presence of the TiO2 which react with the same characteristics as the hydroxyl radical. The additional oxidizing radicals generated in the presence of TiO2 cannot be formed via hydrogen peroxide as an intermediate.

Sign in / Sign up

Export Citation Format

Share Document