Influence of precipitation temperature on phase composition of precursor of CuO/ZnO/Al2O3 catalyst and its catalytic activity for water gas shift reaction

	Influence of precipitation temperature on phase composition of precursor of CuO/ZnO/Al2O3 catalyst and its catalytic activity for water gas shift reaction
	Fang, DR ; Liu, ZM ; Yang, Y ; Meng, SH ; Suo, ZH ; Chen, F
刊名	chinese journal of catalysis
	2004-11-01
卷号	25 期号:11 页码:920-924
关键词	copper oxide zinc oxide alumina mixed oxide catalyst precursor phase composition carbon monoxide water gas shift reaction
英文摘要	the cuo/zno/al2o3 catalyst was prepared by the cu-zn-al ternary co-current coprecipitation method at ph 7. the effect of precipitation temperature on the phase composition of the catalyst precursor was studied by xrd, dtg, tpr, n-2 adsorption and n2o titration methods. the catalyst activity for the water gas shift reaction (wgsr) was tested in a differential fixed-bed reactor at atmospheric pressure. the results demonstrated that cu2co3(oh)(2), (cu,zn)(2)co3(oh)(2) and (cu,zn)(6)al-2(oh)(16)co3.4h(2)o were the main phases in the catalyst precursor and the amounts of the latter two phases increased with increasing precipitation temperature. in the calcined catalyst, cuo-zno solid solution formed and its amount increased as the precipitation temperature increased. no spinel-like phase of (cu,zn)al2o4 was detected by xrd in the calcined catalyst. there was a linear relationship between the low-temperature (200 degreesc) catalytic activity for wgsr and the cu surface area of the catalyst. wgsr was a structure-insensitive reaction.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	methanol synthesis catalysts ; coprecipitation methods ; structure-sensitivity ; selective production ; oxide catalysts ; reformed fuels ; co removal ; oxidation ; hydrogen ; cu
收录类别	SCI
语种	英语
WOS记录号	WOS:000225816000015
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/139588]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Yantai Univ, Inst Appl Catalysis, Shandong 264005, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Fang, DR,Liu, ZM,Yang, Y,et al. Influence of precipitation temperature on phase composition of precursor of CuO/ZnO/Al2O3 catalyst and its catalytic activity for water gas shift reaction[J]. chinese journal of catalysis,2004,25(11):920-924.
APA	Fang, DR,Liu, ZM,Yang, Y,Meng, SH,Suo, ZH,&Chen, F.(2004).Influence of precipitation temperature on phase composition of precursor of CuO/ZnO/Al2O3 catalyst and its catalytic activity for water gas shift reaction.chinese journal of catalysis,25(11),920-924.
MLA	Fang, DR,et al."Influence of precipitation temperature on phase composition of precursor of CuO/ZnO/Al2O3 catalyst and its catalytic activity for water gas shift reaction".chinese journal of catalysis 25.11(2004):920-924.