Popis: |
Investigation of the direct conversion of methane to transportation fuels has been an ongoing effort at PETC for over 10 years. One of our current areas of research is the conversion of methane to methanol under mild conditions using light, water, and a semiconductor photocatalyst. The use of three relatively abundant and inexpensive reactants, light, water, and methane, to produce methanol is attractive. Research in our laboratory is directed toward applying techniques developed for the photochemical splitting of water to methane conversion. The reaction sequence of interest initially produces a hydroxyl radical with the aid of a doped tungsten oxide photocatalyst and an electron transfer molecule. Hydroxyl radical can then react with a methane molecule to produce a methyl radical. In the preferred reaction pathway, the methyl radical then reacts with an additional water molecule to produce methanol and hydrogen. |