Water splitting, layered

Schimmel Co. attempted to acetylise the alcohol by means of acetic anhydride, but the reaction product only showed 5 per cent, of ester, which was not submitted to further examination. The bulk of the alcohol had been converted into a hydrocarbon, with loss of water. Ninety per cent, formic acid is most suitable for splitting off water. Gne hundred grams of the sesquiterpene alcohol were heated to boiling-point with three times the quantity of formic acid, well shaken, and, after cooling, mixed with water. The layer of oil removed from the liquid was freed fi-om resinous impurities by steam-distillation, and then fractionated at atmo.spheric pressure. It was then found to consist of a mixture of dextro-rotatory and laevo-rotatory hydrocarbons. By repeated fractional distillation, partly in vacuo, partly at ordinary pressure, it was possible to separate two isomeric sesquiterpenes, which, after treatment with aqueous alkali, and distillation over metallic sodium, showed the following physical constants —... 

A. Kudo, H. Kato, S. Nakagawa, Water splitting into H2 and O2 on new Sr2M207 (M — Nb and Ta) photocatalysts with layered perovskite structures Factors affecting the photocatalytic activity, J. Phys. Chem. B 104 (2000) 571-575. 

Kudo, A., Kato, H., Nakagawa, S. 2000. Water splitting into Hj and Oj on new StjMjO, (M=Nb and Ta) photocatalysts with layered perovskite structures factors affecting the photocatalytic activity. J Phys Chem B 104 571-575. 

Takata, T., Shinohara, K., Tanaka, A., Kara, M., Kondo, J.N., Domen, K. 1997a. A highly active photocatalyst for overall water splitting with a hydrated layered perovskite structure. J Pho-tochem PhotobiolA Chem 106 45 9. 

Jang JS, Kim HG, Reddy VR, Bae SW, Ji SM, Lee JS (2005) Photocatalytic water splitting over iron oxide nanoparticles intercalated in HTiNb(Ta)05 layered compounds. J Gatal 231 213-222... 

Tandem type hydrogenated amorphous Si (a-Si) electrodes having an [n-i-p-n-i-p] structure and a similar tandem a-Si electrode having [n-i-p-n-i-p] layers deposited on p-type crystalline Si showed cathodic photocurrents accompanied by the HER.567 These electrodes, when connected to a RuCh counterelectrode (where OER occurred) caused sustained water splitting without external bias with solar-to-chemical conversion efficiencies of 1.98% and 2.93%.567... 

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