Solid acids such as ZrO2 & Mo (VI)/ZrO2 were coated on a honeycomb monolith by impregnation method. These catalytic materials were characterized by NH3-TPD, PXRD and SEM techniques. Salicylate esters were synthesi...Solid acids such as ZrO2 & Mo (VI)/ZrO2 were coated on a honeycomb monolith by impregnation method. These catalytic materials were characterized by NH3-TPD, PXRD and SEM techniques. Salicylate esters were synthesized via transesterification of methyl salicylate with different alcohols over these catalytic materials. An excellent yield of Salicylate esters was obtained under specific reaction conditions. A correlation between the surface acidity, PXRD phase and catalytic activity of Mo (VI)/ZrO2 was observed. The thermally regenerated catalytic material was reused repeatedly with a consistent high yield of salicylate esters. The honeycomb coated with zirconia catalysts were found to be economical, efficient and ecofriendly (3E concept).展开更多
Cu/ZrO 2 and MoS 2 based catalysts were developed for the synthesis of higher alcohols. Modified by the carbon chain growth enhancing elements, both catalyst systems showed the high performance without the obvious dea...Cu/ZrO 2 and MoS 2 based catalysts were developed for the synthesis of higher alcohols. Modified by the carbon chain growth enhancing elements, both catalyst systems showed the high performance without the obvious deactivation after 2000 h running at 9.0～12.0 MPa and 300～380 ℃, indicating a good prospect for the further development in practical application.展开更多
文摘Solid acids such as ZrO2 & Mo (VI)/ZrO2 were coated on a honeycomb monolith by impregnation method. These catalytic materials were characterized by NH3-TPD, PXRD and SEM techniques. Salicylate esters were synthesized via transesterification of methyl salicylate with different alcohols over these catalytic materials. An excellent yield of Salicylate esters was obtained under specific reaction conditions. A correlation between the surface acidity, PXRD phase and catalytic activity of Mo (VI)/ZrO2 was observed. The thermally regenerated catalytic material was reused repeatedly with a consistent high yield of salicylate esters. The honeycomb coated with zirconia catalysts were found to be economical, efficient and ecofriendly (3E concept).
文摘Cu/ZrO 2 and MoS 2 based catalysts were developed for the synthesis of higher alcohols. Modified by the carbon chain growth enhancing elements, both catalyst systems showed the high performance without the obvious deactivation after 2000 h running at 9.0～12.0 MPa and 300～380 ℃, indicating a good prospect for the further development in practical application.
