Significant Improvement of Thermal Stability for CeZrPrNd Oxides Simply   by Supercritical CO2 Drying

doi:10.1371/journal.pone.0088236

CORC > 北京大学 > 化学与分子工程学院

	Significant Improvement of Thermal Stability for CeZrPrNd Oxides Simply by Supercritical CO2 Drying
	Fan, Yunzhao ; Wang, Zizi ; Xin, Ying ; Li, Qian ; Zhang, Zhaoliang ; Wang, Yingxia
刊名	plos one
	2014
关键词	OXYGEN STORAGE CAPACITY CONTINUOUS HYDROTHERMAL SYNTHESIS ZIRCONIA MIXED OXIDES ONLY 3-WAY CATALYST SOLID-SOLUTIONS CARBON-DIOXIDE SURFACE-AREA AEROGEL PERFORMANCE WATER
DOI	10.1371/journal.pone.0088236
英文摘要	Pr and Nd co-doped Ce-Zr oxide solid solutions (CZPN) were prepared using co-precipitation and microemulsion methods. It is found that only using supercritical CO2 drying can result in a significant improvement of specific surface area and oxygen storage capacity at lower temperatures for CZPN after aging at 1000 degrees C for 12 h in comparison with those using conventional air drying and even supercritical ethanol drying. Furthermore, the cubic structure was obtained in spite of the fact that the atomic ratio of Ce/(Ce+Zr+Pr+Nd) is as low as 29%. The high thermal stability can be attributed to the loosely aggregated morphology and the resultant Ce enrichment on the nanoparticle surface, which are caused by supercritical CO2 drying due to the elimination of surface tension effects on the gas-liquid interface.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000330834400044&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Multidisciplinary Sciences; SCI(E); PubMed; 1; ARTICLE; chm_zhangzl@ujn.edu.cn; 2; e88236; 9
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/190225]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Fan, Yunzhao,Wang, Zizi,Xin, Ying,et al. Significant Improvement of Thermal Stability for CeZrPrNd Oxides Simply by Supercritical CO2 Drying[J]. plos one,2014.
APA	Fan, Yunzhao,Wang, Zizi,Xin, Ying,Li, Qian,Zhang, Zhaoliang,&Wang, Yingxia.(2014).Significant Improvement of Thermal Stability for CeZrPrNd Oxides Simply by Supercritical CO2 Drying.plos one.
MLA	Fan, Yunzhao,et al."Significant Improvement of Thermal Stability for CeZrPrNd Oxides Simply by Supercritical CO2 Drying".plos one (2014).