Ralf Haiges - In situ formation of tetraruthenium dodecacarbonyl tetrahydride from ruthenium(III) chloride in the catalytic decomposition of formic acid to hydrogen and carbon dioxide.

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      Publication Details (including relevant citation   information): Czaun, Miklos, Goeppert, Alain, May,   Robert, Sax, Michael, Zhang, Jenny, Haiges, Ralf, Prakash, G. K.   S., Olah, George A., Abstracts of Papers, 243rd ACS National   Meeting & Exposition, San Diego, CA, United States, March   25-29, 2012, 2012, pp INOR-1067

      Abstract: Formic acid (FA) has been proposed as   a practically non-toxic, non-flammable hydrogen storage/energy   storage media that can be synthesized from CO2 by direct   electrochem. redn. or by catalytic hydrogenation. When energy is   needed, FA can be decompd. to carbon dioxide and hydrogen and   latter converted to electricity in a hydrogen/air fuel cell. When   excess energy is available the recycled CO2 is converted to FA,   making the energy storage cycle carbon neutral. It was found that   FA can be decompd. to H2 and CO2 selectively, using ruthenium   trichloride as a catalyst precursor in the absence of any   nitrogen or phosphorus donor ligand. The in situ formed catalyst,   tetraruthenium dodecacarbonyl tetrahydride [Ru4(CO)12H4] was   isolated in 67 % yield and characterized by spectroscopic methods   and X-ray crystallog. To the best of our knowledge this is the   first example for the one step prepn. of [Ru4(CO)12H4] from RuCl3   using FA as the exclusive source of carbonyl and hydride ligands.   [on SciFinder(R)]

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