Appearance of autocatalysis in the production of molecular hydrogen by a photoreaction on semiconductor heterojunctions |
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| Authors: | A I Kryukov S Ya Kuchmii A V Korzhak S V Kulik |
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| Institution: | (1) L. V. Pisarzhevskii Institute of Physical Chemistry, Academy of Sciences of Ukraine, Kiev |
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| Abstract: | The photocatalytic evolution of H2 from ethanol and aqueous solutions of Na2SO3 and Na2S by suspensions of CdS/Cu2+ and CdS/Bi3+ microheterojunctions has been investigated. The appearance of autocatalysis has been obtained, attributed to a lowering of the energy barrier of the reaction; it is caused by a change in the work function of an electron from the palladium co-catalyst, due to its saturation by the product (hydrogen).Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 29, No. 5, pp. 435–440, September–October, 1993. |
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