碳球粒径对Cu/C催化剂甲醇水蒸气重整反应性能的影响  

Influence of the Grain Sizes of C Sphere on the Catalytic Performance over Cu/C for Methanol Steam Reforming

作　　者：董瑾 吴贵升 毛东森 卢冠忠 

机构地区：[1]上海应用技术大学化学与环境工程学院应用催化研究所,上海201418

出　　处：《上海应用技术学院学报（自然科学版）》2016年第2期132-135,158,共5页Journal of Shanghai Institute of Technology: Natural Science

基　　金：上海市重点学科基金资助项目(J51503)

摘　　要：将铜组分负载在不同粒径的C球表面,制得Cu/C催化剂,在对催化剂甲醇水蒸气重整反应活性考察的基础上,进行X射线衍射(XRD)、程序升温还原(TPR)以及原位红外表征.结果表明,铜的晶格应变随C球粒径增大呈现先增大再减小的趋势,且催化剂的催化活性与铜的晶格应变之间存在着近似的线性关系.铜的晶格应变增加,表现出对H_2和CO小分子吸附能力增强,催化剂还原变得容易.Cu/C catalysts were prepared through loading copper species over C sphere with different grain sizes and their catalytic performance for methanol steam reforming was investigated in detail.Meanwhile,the catalysts were characterized with XRD,TPR,and in situ FT-IR.The results showed that the lattice micro-strain of copper first increased and then decreased gradually with the increase of C particle size.Furthermore,the catalytic activities showed similar linear relationship with the lattice micro-strains of copper.In addition,the increase of lattice micro-strains of copper could promote the adsorption of H_2 and CO as well as the reduction of CuO.

关 键 词：Cu/C 甲醇水蒸气重整 铜的晶格应变 

分 类 号：O621.251[理学—有机化学]