Hydrogen Storage in Formic Acid – Amine Adducts

Formic acid, containing 4.4 wt% of hydrogen, is a non-toxic liquid at ambient temperature and therefore an ideal candidate as potential hydrogen storage material. Formic acid can be generated via catalytic hydrogenation of CO2 or bicarbonate in the presence of an amine with suitable ruthenium catalysts. In addition selective dehydrogenation of formic acid amine adducts can be carried out at ambient temperatures with either ruthenium phosphine catalyst systems as well as iron-based catalysts. In detail we obtained with the [RuCl2(benzene)](2)/dppe catalyst system a remarkable TON of 260,000 at room temperature. Moreover applying Fe-3(CO)(12) together with tribenzylphosphine and 2,2':6',2 ''-terpyridine under visible light irradiation a TON of 1266 was obtained, which is the highest activity known to date for selective dehydrogenation of formic acid applying non-precious metal catalysts.


Published in:
CHIMIA International Journal for Chemistry, 65, 4, 214-218
Year:
2011
Publisher:
Schweizerische Chemische Gesellschaft
ISSN:
0009-4293
Keywords:
Laboratories:




 Record created 2011-07-20, last modified 2018-09-13


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