期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 253, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2020.123326
关键词
CO oxidation; CO pulse titration; H-2-TPR; Nano size
资金
- UGC-New Delhi under RGNF Fellowship [F1-17.1/2014-15/RGNF-2014-15-ST- GOA-85914]
Current work composed of transition metal substituted CeO2 catalysts for the catalytic conversion of CO to CO2. The cerium oxide catalysts were successfully prepared via solution combustion method. The prepared oxides were characterized using various techniques such as X-ray diffraction (XRD), Infra-red spectroscopy (IR), thermogravimetry-differential thermal analysis (TG/DTA), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and Brunauer-Emmett-Teller surface area (BET). Further, surface oxygen mobility and CO consumption capacity of the catalyst were studied using H-2-Temperature programmed reduction (H-2-TPR) and CO pulse titration, respectively. It was observed that substitutions of Mn, Cu and Ag in CeO2 system could produce more synergy interactions. The result of CO oxidation demonstrates the doping Mn, Cu and Ag in cerium oxide has increased the CO conversion rate and achieves 100% conversion at 95 degrees C as compared to other catalyst from the series. Such enhanced activity can be related to synergistic effect in the cerium oxide by addition of Mn, Cu and Ag. Overall reduction pattern of the catalysts and CO adsorption profile on the catalysts surface were in support of CO oxidation reaction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据