Photosensitized hydrogen evolution from basic aqueous SiO2 colloids is accomplished using N,N′-dipropyl-2,2′-bipyridinium disulphonate, DQSo, (1) as electron acceptor and platinum as catalyst; the charged SiO2 colloid allows the formation and stabilization of the intermediate photoproducts and the subsequent formation of hydrogen.
Y. Degani and I. Willner, J. Chem. Soc., Chem. Commun., 1983, 710 DOI: 10.1039/C39830000710
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