TY - JOUR T1 - Effect of titration time on the catalytic performance of Cu/CeO2 catalysts for water-gas shift reaction JF - Catalysis Today Y1 - 2018 A1 - Na, Hyun-Suk A1 - Shim, Jae-Oh A1 - Jang, Won-Jun A1 - Jeon, Kyung-Won A1 - Kim, Hak-Min A1 - Lee, Yeol-Lim A1 - Lee, Da-We A1 - Yoo, Seong-Yeun A1 - Bae, Jong Wook A1 - Rode, Chandrashekhar V. A1 - Roh, Hyun-Seog AB - We herein report the preparation of ceria (CeO2) via a simple precipitation method for use as a catalyst support in the water-gas shift (WGS) reaction. More specifically, we optimized the titration time required to obtain highly active CeO2-supported catalysts for the WGS reaction. As such, Cu was employed as the active metal coupled with the CeO2 support. Notably, the CeO2-0 supported Cu catalyst (where the precipitant was immediately injected into a cerium nitrate solution) exhibited the highest CO conversion at a gas hourly space velocity of 36,050 h(-1). This high catalytic activity of the Cu/CeO2-0 catalyst was mainly due to its high Brunauer-Emmett-Teller (BET) surface area, enhanced Cu dispersion, high number of oxygen vacancies, and enhanced reducibility. VL - 309 U3 - Foreign U4 - 4.636 ER -