Application of ZrO2 as a catalyst and a catalyst support

Review: monoclinic zirconia, its surface sites and their interaction with carbon monoxide

“…H/D isotope exchange of the surface formates with gas-phase D 2 seems to be possible, yet slow and competing with formate decomposition already around 300 • C 26 . Only 2 − 3% of the surface formate species are exchanged to DCOO species at 150 • C in 488 kPa D 2 42 . The necessity of gas-phase D 2 for formate scrambling was demonstrated as the H/D exchange did not proceed between formates and surface deuteroxyls 26 .…”

“…Zirconium oxide has gained interest both as a catalyst support and a catalyst on its own, mostly due to its weak acid and basic sites 1 and stability under oxidizing and reducing atmospheres 2 . It has been an interesting catalyst material especially for biomass-related reactions that are actively investigated, as the future is bright for non-fossil fuels and chemicals.…”

Nitrobenzene hydrogenation over Ni/TiO2 catalyst in vapour phase at atmospheric pressure: influence of preparation method

“…Although the surface area of the catalysts prepared by reductive deposition method is smaller compared to that of the impregnation method, the catalysts show good yields towards the aniline. The domination of t-ZrO 2 could partially contribute to the higher surface area of the Ni/ZrO 2 catalyst prepared by impregnation method [29,30]. Although the surface area of Ni/TiO 2 (R) is lower Calculated from atomic absorption spectroscopy compared to Ni/TiO 2 (I), the higher catalytic performance was noticed which could be attributed to the presence of supreme number of surface Ni species (Table 2).…”

Acoplagem Desidrogenativa via Catálise Heterogênea De Etanol E Propanol Em Catalisador De Cobre Suportado Em Zircônia

“…1) concluiu que o cobre suportado na ZrO2 é um catalisador extremamente ativo e seletivo para transformar o etanol diretamente em acetato de etila. No entanto, a acoplagem desidrogenativa catalítica com propanol e a mistura etanol/propanol ainda não foi bem estabelecida (YAMAGUCHI, 1994. TANABE, YAMAGUCHI, 1994.…”