IOW, if you use a battery instead of sunlight CO2 can be reduced to C and O2. Nature does it when building fats, oils, and Lignin in plants.
http://www.osti.gov/bridge/servlets/purl/752152-JsQXqJ/native/752152.pdf "Bibliography. E. Fujita, Photochemical Carbon Dioxide Reduction with Metal Complexes, Coordination Chemistry Review, vol. 18.5186, 373-384, 1999; N. Sutin, C. Creutz. and E. Fujita, Photo-Induced Generation qf Dihydrogen and Reduction of Carbon Dioxide Using Transition Metal Complexes, Comments Inorg, Chem. vol. 19,67-92, 1997; T. Inui, M. Anpo. K. Izui, S. Yanagida, and T. Yamaguchi (Eds.) Advances in Chemical Conversions for Mitigating Carbon Dioxide, Studies in Surface Science and Catalysis, Vol. 114, Amsterdam, Elsevier, 1998; E. Fujita, L. R. Furenlid, and M. W. Renner, Dzrect XANES Evidence for Charge Transfer in Co-CO2 Complexes, J. Am. Chem. Sot., vol 119, 4.549-4550, 1997." > > [Original Message] > From: Frederick Sparber > Date: 7/29/2006 9:48:04 AM > Subject: RE: [Vo]: Re: Colloidal Carbon Nanoparticles in Waterfuel/Joe Cell > > > Jones, > > I'm not so sure that CO2 from the air on pre-conditioning, or exhaust gas > recycle on > an ICE doesn't form reduced carbon Nanoparticles/clusters: > > CO2 + H2O ----> H+ + HCO3- ---> 2 H+ + CO3 = > > CO3 = + 3 e- ---> C + 1.5 O2 > > 5,677,075 > > http://patft.uspto.gov/netahtml/PTO/srchnum.htm > > "As a conclusion, carbon particles in carbon suspension obtained by > electrolytic oxidation are endowed with --COOH and --C--O-- groups on the > surfaces so as to become electrochemically modified carbon particles. > Taking into consideration the fact that the neutral aqueous solution turns > to be acidic (for example pH=2-3.5) aqueous solution as electrochemically > oxidation proceeds, the carbonyl group probably exists as --COOH. It is > also probable that --C--O-- exists as --C--OH, taking the process of the > above-described electrochemical reactions into consideration. These --COOH > and --C--OH groups play important roles for the dispersion of the carbon > particles and the activation of PbO.sup.2 cathodes in lead-acid batteries. > Although carbon particles are inherently hydrophobic, the surface of carbon > becomes hydrophilic by chemical modification, so that stable suspension can > be obtained." > > Fred >