• 作者： Chen, Y.Z.; Wang, J.M.
• 中文摘要： 本研究以含浸製備法,TPD、TPR、TPSR鑑定法,及一氧化碳氫化反應探討氧化鉻及氧化鉬對負載式鎳觸媒之促進影響。此促進影響因觸媒擔體種類而不同; 在氧化矽擔體上,促進劑與鎳金屬能親密接觸並有效地促進反應,但在氧化鋁擔體上,促進劑聚集分離無法呈現促進效果。氧化鉻與氧化鉬的鉻離子與鉬離子經由Side-Bond效應促進一氧化碳的解離,進而促進反應及高碳產物之生成。
• 英文摘要： Chromina or molybdena-promoted nickel/silica (alumina) catalysts was prepared by the coimpregnation method. The catalysts were characterized with TPD, TPR and TPSR techniques and carbon monoxide hydrogenation. The chromina and molybdena added could intimately contact nickel on silica within an appropriate additive amount. The chromina and molybdena promoted the dissociation of CO through the side-bond interaction with the oxygen atom in CO and enhanced the CO hyrogenation. The enhancement was accompanied by an increased selectivity of long chain hydrocarbons for the chromina-promoted nickel/silica catalysts. On alumina the chromina, while subject to segregation without good contact with nickel, exhibited unpronounced promotion effect.
• 中文關鍵字： 促進劑; 氧化鉻; 氧化鉬; 鎳; 一氧化碳; 氫化反應; 觸媒
• 英文關鍵字： Promoter; Chromina; Molybdena; Nickel; Carbon Monoxide; Hydrogenation; Catalyst