燃料化学学报2012,Vol.40Issue(6):743-749,7.
沉淀方式对微波辐射老化制备CuO/ZnO/Al2O3催化剂性能的影响
Effects of precipitation manner on catalytic performance of CuO/ZnO/Al2O3 catalyst aging under microwave irradiation
摘要
Abstract
CuO/ZnO/Al2O3 precursors were prepared by different precipitation manner; microwave irradiation was introduced in aging process. The effects of precipitation manner on composition of precursor, micro structure and performance of catalyst were characterized by means of XRD, DTG, H2-TPR. The reaction results indicated that the order of catalytic activity was Stepwise Ⅱ>Parallel-flow > Stepwise Ⅰ > Reversed > Forward. When A1(NO3)3 solution and Na2CO3 solution were precipitated first and then Cu(NO3)2-Zn(NO3)2 solution were precipitated with remaining Na2CO3, the prepared precursor contained more (Cu, Zn)5(CO3)2(OH)6, which possessed well-dispersed CuO, strong synergy in CuO-ZnO and low H2-reduction temperature after calcination.关键词
微波辐射/CuO/ZnO/Al2O3催化剂/合成甲醇/沉淀方式Key words
microwave irradiation/ CuO/ZnO/Al2O3 catalyst/ methanol synthesis/ precipitation manner分类
化学引用本文复制引用
郑华艳,李博昱,刘岩,陈雄,李忠..沉淀方式对微波辐射老化制备CuO/ZnO/Al2O3催化剂性能的影响[J].燃料化学学报,2012,40(6):743-749,7.基金项目
国家重点基础研究发展规划(973计划,2012CB723105) (973计划,2012CB723105)
国家自然科学基金青年项目(21106092). (21106092)