000201838 001__ 201838
000201838 005__ 20190604054653.0
000201838 0247_ $$2doi$$a10.1021/jp507310d
000201838 02470 $$2ISI$$a000343016800038
000201838 037__ $$aARTICLE
000201838 245__ $$aHydrogen and Hydrogen Peroxide Formation in Trifluorotoluene-Water Biphasic Systems
000201838 269__ $$a2014
000201838 260__ $$bAmer Chemical Soc$$c2014$$aWashington
000201838 300__ $$a8
000201838 336__ $$aJournal Articles
000201838 520__ $$aHydrogen or hydrogen peroxide can be generated in liquid-liquid biphasic systems, where the organic phase contains sufficiently strong electron donor (whose redox potential is lower than the potential of reversible hydrogen electrode). H2O2 generation with acidified aqueous phase occurs prior to H2 evolution when oxygen is present. No other organic solvent than highly toxic 1,2-dichloroethane (DCE) has been reported in biphasic system for H2 or H2O2 generation. In this work, we have used trifluorotoluene (TFT) instead of carcinogenic DCE, and studied these reactions in TFT-water biphasic system. To evaluate H2 flux, scanning electrochemical microscopy potentiometric approach curves to the TFT-water interface were recorded. H2O2 was detected voltametrically at a microelectrode located in the vicinity of the interface. H2 and H2O2 are formed and both reactions occur also in the absence of a hydrophobic salt in the organic phase. Their thermodynamics was discussed on the basis of Gibbs energies determined electrochemically with droplet-modified electrodes. The results show that DCE can be replaced by a noncarcinogenic solvent and the biphasic system for H2 and H2O2 generation can be simplified by elimination of the uncommon hydrophobic salt from the organic phase.
000201838 700__ $$aWojciech, Adamiak
000201838 700__ $$aJustyna, Jedraszko
000201838 700__ $$aNogala, Wojciech
000201838 700__ $$0246377$$g219571$$aHidalgo Acosta, Jonnathan Cesar
000201838 700__ $$g105258$$aGirault, Hubert H.$$0242739
000201838 700__ $$aOpallo, Marcin
000201838 773__ $$j118$$tThe Journal of Physical Chemistry C$$q23154-23161
000201838 8564_ $$uhttps://infoscience.epfl.ch/record/201838/files/jp-2014-07310d_0010.gif$$zTOC$$s34803$$yTOC
000201838 8564_ $$uhttps://infoscience.epfl.ch/record/201838/files/jp507310d.pdf$$zPublisher's version$$s2822826$$yPublisher's version
000201838 8564_ $$uhttps://infoscience.epfl.ch/record/201838/files/jp507310d_si_001.pdf$$zSupporting Information$$s319236$$ySupporting Information
000201838 909C0 $$xU10100$$0252090$$pLEPA
000201838 909CO $$ooai:infoscience.tind.io:201838$$qGLOBAL_SET$$pSB$$particle
000201838 917Z8 $$x208650
000201838 917Z8 $$x208650
000201838 917Z8 $$x208650
000201838 937__ $$aEPFL-ARTICLE-201838
000201838 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000201838 980__ $$aARTICLE