ZB 06 - Nanoelectrochemistry (W.Nogala)

Hydrogen and Hydrogen Peroxide Formation in Trifluorotoluene Water Biphasic Systems

Author(s): Adamiak, Wojciech and Jedraszko, Justyna and Krysiak, Olga and Nogala, and Hidalgo-Acosta, Jonnathan C. and Girault, Hubert H. and Opallo, Marcin
Title: Hydrogen and Hydrogen Peroxide Formation in Trifluorotoluene Water Biphasic Systems
Abstract: Hydrogen or hydrogen peroxide can be generated in liquid-liquid biphasic where teh organic phase contains suficiently strong electron (whose redox potential is lower than the potential of reversible electrode). is lower than the potential of reversible hydrogen H2O2 generation with acidified aqueous phase occurs prior to evolution when oxygen is present. No other organic solvent than toxic 1,2-dichloroethane (DCE) has been reported in biphasic for H-2 or H2O2 generation. In this work, we have used (TFT) instead of carcinogenic DCE, and studied these in TFT-water biphasic system. To evaluate H2 flux, scanning microscopy potentiometric approach curves to the interface were recorded H2O2 was detected voltametrically at a located in the vicinity of the interface. H-2 and H2O2 formed and both reactions occur also in the absence of a hydrophobic in the organic phase. Their thermodynamics was discussed on the of Gibbs energies determined electrochemically with electrodes. The results show that DCE can be replaced a noncarcinogenic solvent and the biphasic system for H-2 and H2O2 can be simplified by elimination of the uncommon hydrophobic salt from the organic phase
Pages: 23154-23161
Journal: JOURNAL OF PHYSICAL CHEMISTRY C
Publisher: AMER CHEMICAL SOC
Addres: 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Volume: 118
ID: ISI:000343016800038
Year: 2014
DOI: 10.1021/jp507310d