Publication

Photocatalyst and its uses

Michael Graetzel, Kuppuswamy Kalyanasundaram
1982
Patents

Abstract

Le produit de présente sous forme de particules distinctes ou sous forme d'une couche incorporée à une électrode. Il consiste en une matière semiconductrice sujette à la photocorrosion, par exemple du sulfure de cadmium. Afin de prévenir cette photocorrosion, la surface de la matière semiconductrice qui est destinée à être illuminée est recouverte d'une couche transparente de RuO2, de IrO2 ou d'un mélange de RuO2 et de IrO2. Le produit peut être utilisé pour la conversion de l'énergie solaire en énergie électrique ou en un combustible tel que l'hydrogène.

Official source

https://infoscience.epfl.ch/entities/publication/f54c2133-4849-4e3b-ad75-dab4e1edb5f3

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Michael Graetzel, Kuppuswamy Kalyanasundaram
1982
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f54c2133-4849-4e3b-ad75-dab4e1edb5f3

About this result

Related concepts (2)

Silo

A silo () is a structure for storing bulk materials. Silos are used in agriculture to store fermented feed known as silage, not to be confused with a grain bin, which is used to store grains. Silos are commonly used for bulk storage of grain, coal, cement, carbon black, woodchips, food products and sawdust. Three types of silos are in widespread use today: tower silos, bunker silos, and bag silos. Storage silos are cylindrical structures, typically 10 to 90 ft (3 to 27 m) in diameter and 30 to 275 ft (10 to 90 m) in height with the slipform and Jumpform concrete silos being the larger diameter and taller silos.

Mining

Mining is the extraction of valuable geological materials from the Earth and other astronomical objects. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit.