QQ客服 官方微博 反馈留言

	复合稀土氧化物和硫氧化物超细粉的制备和结构; PREPARATION AND STRUCTURE OF MONODISPERSED SUPERFINE PARTICLES OF COMPLEX RARE-EARTH-OXIDES AND OXYSULFIDES
	钱鸿滔 ; 阮慎康 ; 康振川 ; 苏勉曾
	1995
关键词	超细粉 稀土氧化物 稀土硫氧化物 水解法 SUPERFINE PARTICLES RARE EARTH OXIDES RARE EARTH OXYSULFIDES HYDROLYSIS
英文摘要	以脲为水解试剂，采用强迫水解法制备了（Ｙ，Ｃｄ，Ｃｄ，Ｅｕ）２Ｏ３、（Ｙ，Ｔｂ）２Ｏ３、（Ｙ，Ｇｄ，Ｅｕ）２Ｏ２Ｓ和（Ｙ，Ｔｂ）２Ｏ２Ｓ等一系列复合稀土氧化物和硫氧化物超细粉，研究了热分解反应的机理以及产物的结构和性能。; Monodispersed fine spherical particles (similar to 100 nm) of complex rare earth hydroxycarbonates are prepared by hydrolizing mixed rare earth nitrates solution at elevated temperature in the presence of urea. By calcining the hydroxycarbonates at moderate temperature, complex rare earth sesquioxides (similar to 70 nm) of C-type can be obtained. The mechanism of the decomposition of hydroxycarbonate at different temperatures have been verified to proceed through monoxydicarbonate dioxymonocarbonate to sesquioxide of body-centered structure by DTA, TGA, XRD and HREM. The experimental EDP diagrams of complex rare earth sesquioxides have been identified with those of calculated C-type structure. Complex rare earth oxysulfides of hexagonal structure can be prepared by firing a blend of complex rare earth hydroxycarbonate; S, Na2CO3 and KH2PO4 at 1000 degrees C.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1995RC03700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科学引文数据库(CSCD); 1; 05; 661-665; 16
语种	中文
出处	知网 ; SCI
出版者	高等学校化学学报
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/81145]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	钱鸿滔,阮慎康,康振川,等. 复合稀土氧化物和硫氧化物超细粉的制备和结构, PREPARATION AND STRUCTURE OF MONODISPERSED SUPERFINE PARTICLES OF COMPLEX RARE-EARTH-OXIDES AND OXYSULFIDES. 1995-01-01.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。