燃料化学学报Issue(9)：1120-1127,8.
核-壳结构Pd-Co3 O4@SiO2催化剂的低浓度甲烷催化燃烧性能
Catalytic combustion of lean methane over a core-shell structured Pd-Co3 O4@SiO2 catalyst
摘要
Abstract
A core-shell structured Pd-Co3 O4@SiO2 catalyst was prepared by a simple self-assemble method and used in lean methane combustion. The results of catalytic tests indicate that the core-shell Pd-Co3 O4@ SiO2 catalyst exhibits high activity in lean methane combustion and superior stability at high temperature. The results of TEM, XRD, and H2-TPR characterization suggest that the high activity of Pd-Co3 O4@SiO2 is mainly ascribed to the strong interaction between CoOx and PdO species inside the SiO2 shell. Meanwhile, as the active Pd and CoOx species in Pd-Co3 O4@ SiO2 are enshielded in the core-shell structure, which is effective to protect the active phase from sintering at high temperature, the core-shell structured Pd-Co3 O4@SiO2 catalyst is thus far superior in thermal stability against high temperature to the supported Pd/Co3 O4@ SiO2 and Pd/Co3 O4-SiO2 catalysts.关键词
Pd-Co3 O4SiO2/低浓度甲烷/催化燃烧/核-壳结构/热稳定性/自组装法Key words
Pd-Co3 O4SiO2/lean methane/catalytic combustion/core-shell structure/thermal stability/self-assemble method分类
化学引用本文复制引用
卢楠,吴志伟,雷丽军,秦张峰,朱华青,罗莉,樊卫斌,王建国..核-壳结构Pd-Co3 O4@SiO2催化剂的低浓度甲烷催化燃烧性能[J].燃料化学学报,2015,(9):1120-1127,8.基金项目
国家自然科学基金(21227002) （21227002）
中国科学院战略性先导科技专项(XDA07060300) （XDA07060300）
山西省科技攻关项目(MQ2014-11, MQ2014-11) （MQ2014-11, MQ2014-11）
山西省自然科学基金(2012021005-3)。 （2012021005-3）
