Abstract
Recently, a TiO 2-based catalyst has been commercially used on a large scale; this first application was the selective catalytic reduction of NO xin air pollution control. In this review, the application and physico-chemical properties of TiO 2-based catalysts are discussed. A TiO 2-based catalyst is defined as a catalyst whose major component is TiO 2. Physico-chemical properties of TiO 2 as a support are compared with those of conventional catalyst supports such as Al 2O 3 and SiO 2. The preparation procedure of a high surface area TiO 2 support is briefly summarized. The activity and durability of TiO 2-based catalysts have been studied in the selective catalytic reduction of NO x with NH 3, partial oxidation of hydrocarbons, hydrodesulphurization of hydrocarbon oils, coal liquefaction and adsorption of H 2S.
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