{"product_id":"surface-properties-and-catalysis-by-non-metals-von-j-p-bonnelle-b-delmon-e-g-derouane-hrsg","title":"Surface Properties and Catalysis by Non-Metals","description":"In the field of heterogeneous catalysis. it is convenient to distinguish. in a perfectly unjustified and over··simplified way. bet:leen metal catalysts. 2nd the other catalysts. The fj.J\"st are easy to define : they are those in which a reduced metal is the active phase. It is thus easy to circumscribe. by exclusion, the other class namely the \"non-metals\". We have adopted this definition for the sake of our colleagues working on catalysis by metals, and to avoid a lengthy title like \"sm' face pl\"operties and catalysts by transi tion metal oxides. sulftdes, carbides, nitriles, etc. Defined in this manner, non-metal catalysts represented, in 1980, 84 wt. % of the industrial heterogeneous catalysts. To be more specific, this proportion corresponds to catalysts which, under the working conditions in the industrial ?lant. contain their catalytically active metallic elements in a non-reduced state. It should however be recalled that most metal catalysts are supported on oxides, which, often, repl'esent over 90% (sometimes 99.4% in the case of the platinum reforming catalysts) of the total weight.\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9789027716071\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Hardcover - 9789027716071","offer_id":51369545798,"sku":"9789027716071","price":213.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/46740734-a83d-401f-9f38-bd7cf9189ef0.jpg?v=1771219822","url":"https:\/\/shop.autorenwelt.de\/en\/products\/surface-properties-and-catalysis-by-non-metals-von-j-p-bonnelle-b-delmon-e-g-derouane-hrsg","provider":"Autorenwelt Shop","version":"1.0","type":"link"}