燃料化学学报2012，Vol.40Issue(4)：418-423,6.
Co/Ce0.5Zr0.5O2催化剂的制备及甲烷部分氧化制合成气
Preparation of Co/Ce0.5Zr0.5O2 catalysts and their catalytic performance in methane partial oxidation to produce synthesis gas
摘要
Abstract
Porous Ce05Zr05O2 solid solution support was first prepared by a co-precipitation method. Then, different concentrations of Co (10% , 20% , and 30 % ) were loaded over Ce0 5Zr0 5O2 by impregnation process. The fresh catalysts were characterized by some physicochemical characterizations such as N2 physical adsorption (BET), X-ray diffraction (XRD), temperature-programmed reduction of hydrogen (H2-TPR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The amount of deposited carbon over used catalysts was analyzed by temperature-programmed oxidation of oxygen ( O2-TPO ) and thermogravimetry (TG). The catalytic performance of these Co/Ce0 5Zr0 5O2 catalysts was evaluated by methane partial oxidation to produce synthesis gas. The results show that cobalt oxide is easy to be reduced to metal cobalt over Ce0 5Zr05O2. This series of Co/Ce0 5 Zr0 5 O2 catalysts show high activity and selectivity to H2and CO. It was found that loading high concentration of Co could benefit the increase in catalytic activity and ability to resist the coke.关键词
Ce0.5Zr0.5O2固溶体/钴/甲烷部分氧化/合成气Key words
porous Ce05Zr05O2 solid solution/ cobalt/ methane partial oxidation/ syngas分类
化学化工引用本文复制引用
余长林,胡久彪,翁维正,周晓春,陈喜蓉..Co/Ce0.5Zr0.5O2催化剂的制备及甲烷部分氧化制合成气[J].燃料化学学报,2012,40(4):418-423,6.基金项目
国家自然科学基金(21067004) （21067004）
厦门大学固体表面物理化学国家重点实验室开放基金(200906) （200906）
江西省自然科学基金(2010-GZH0048) （2010-GZH0048）
江西省教育厅科技项目(GJJ12344). （GJJ12344）
