Showing papers on "Water splitting published in 1972"
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
Abstract: ALTHOUGH the possibility of water photolysis has been investigated by many workers, a useful method has only now been developed. Because water is transparent to visible light it cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm (ref. 1).
27,819 citations
TL;DR: In this article, a model is proposed that postulates a free-hydrogen source in the deep-seated environment, resulting from dissociation of water in the presence of minerals containing ferrous iron.
Abstract: A model is proposed that postulates (1) a free-hydrogen source in the deep-seated environment, resulting from dissociation of water in the presence of minerals containing ferrous iron; (2) a continuous upward percolation of elemental hydrogen into the surface environment as a consequence of its high rate of diffusion relative to other constituents; and (3) a hydrogen sink near the surface formed by biologically catalyzed chemical reactions of free hydrogen with organic matter, ferric iron, sulfates, and atmospheric oxygen. It is suggested that the hydrogenation of biogenic organic matter in sedimentary rocks by free hydrogen of deep-seated origin should be investigated as a factor in the genesis of petroleum.
27 citations
TL;DR: In this article, an aluminum amalgam will react with water at ordinary temperatures with the formation of aluminum hydroxide and the liberation of free hydrogen, and this reaction will continue until all the aluminum has been consumed.
Abstract: An aluminum amalgam will react with water at ordinary temperatures with the formation of aluminum hydroxide and the liberation of free hydrogen. In the case of a block or sheet of the metal having an amalgamated surface, this reaction will continue until all the aluminum has been consumed. The reaction rate is observed to be temperature dependent, and this affords a simple means of regulating the output of hydrogen. If the supply of water and disposal of waste is discounted the reaction is shown to be superior, on a volumetric basis, to all other common means of producing hydrogen, and furthermore is competitive on a weight and cost basis with other chemical production methods. The inherent simplicity of such a scheme for hydrogen generation offers attractive advantages in terms of reliability.
26 citations