A variety of next-generation energy processes utilize the electrochemical interconversions of dioxygen and water as the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER).
Cl2(g) 2 e 2 Cl(aq).358, cr2O72 14 H(aq) 6 e 2 Cr3(aq) 7 H2O.33, n2H5(aq) 3 gagner concours belgique H(aq) 2 e 2 NH4(aq).24 MnO2(s) 4 H(aq) 2 e Mn2(aq) 2 H2O.23 O2(g) 4 H(aq) 4 e 2 H2O.229 Pt2(aq) 2 e Pt(s).
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The thermochemical approach used for the O2/H2O couple has been extended to the CO2/CO and CO2/CH4 couples to give values of -0.12 and.15 V in MeCN and -0.73 and -0.48 V in DMF, respectively.Extensions to other reduction potentials are discussed.Au(s).5, clO3(aq) 6 H(aq) 5 e 1/2 Cl2(g) 3 H2O.47, brO3 6 H(aq) 6 e, br(aq) 3 H2O.44.Click search to return to the full list.Date Edited, jan 17, 2011 9:39 AM, version.Cl2(g) 2 H2O.63, ce4(aq) e, ce3(aq).61, naBiO3(s) 6 H(aq) 2 e, bi3(aq) Na(aq) 3 H2O.6.Additionally, the free energy for transfer of protons from water to organic solvent is estimated as 14 kcal reduction carrefour mol(-1) for acetonitrile and.6 kcal mol(-1) for DMF.Retype the characters from the picture: Related BioNumbers.PbSO4(s) 2 H2O.685, au(aq) e, au(s).68 2 HClO(aq) 2 H(aq).PbO2(s) SO42(aq) 4 H(aq).Acidic Solution, eo (V f2(g) 2 e 2 F(aq).87, co3(aq) e, co2(aq).82.
Comments, the standard reduction potential is defined relative to a standard hydrogen electrode (SHE) reference electrode, which is arbitrarily given a potential.00 volts.
The potentials have been determined using a thermochemical cycle that combines the free energy for transferring water from aqueous solution to organic solvent, -0.43 kcal mol(-1) for MeCN and -1.47 kcal mol(-1) for DMF, and the potential of the H H2 couple, -.028.
Entered By, uri M, date Added, jun 22, 2009 5:57.Drake, Kirsten Kusel and Carola Matthies, Acetogenic prokaryotes, Prokaryotes (2006) 2:354420 chapter.13.Pb4(aq) 2 e, pb2(aq).8, h2O2(aq) 2 H(aq) 2 e 2 H2O.77, niO2(s) 4 H(aq) 2 e, ni2 (aq) 2 H2O.7.The values are.21 V in acetonitrile (MeCN) and.60 V in N,N-dimethylformamide (DMF each versus the ferrocenium/ferrocene couple (Fc 0) in the respective solvent (as are all of the potentials reported here).MnO4(aq) 8 H(aq) 5 e, mn2(aq) 4 H2O.51, au3(aq).Organism, unspecified, value -520, units mV, reference, harold.The H H2 couple in DMF has been directly measured electrochemically using the previously reported procedure for the MeCN value.ID 104406, property, standard redox potential of CO2/CO half cell.
Reported here are the first estimates of the standard reduction potential of the O2 4e(-) 4H 2H2O couple in organic solvents.
For example, the standard redox potential of the CO2 cO half-cell (520 mV) is approximately 100 mV more negative than that of the 2H 2e/H2 half-cell ( 420 mV).
Entered By, Uri.