立方体氯化银/溴碘化银外延乳剂的离子电导  

IONIC CONDUCTIVITY OF EPITAXIAL AgCI/AgBr(I) CUBIC EMULSION GRAINS

作　　者：王延梅[1] 岳军[1] 陶淳[1] 徐绪国[1] 

机构地区：[1]中国科学技术大学化学物理系,合肥230026

出　　处：《感光科学与光化学》1992年第3期243-247,共5页Photographic Science and Photochemistry

摘　　要：利用微机控制平衡双注法在不同pAg条件下,成功地制备了三种单分散十四面体AgBr(Ⅰ)主晶并随后在其(111)面上外延淀积AgCl而获得三种单分散AgCl,AgBr(Ⅰ)外延立方颗粒乳剂,外延颗粒介电频谱曲线出现明显分立的双峰,分别相应于其中AgBr(Ⅰ)和AgCl两相对离子电导的贡献,主晶及外延颗粒的离子电导均随制备时的pAg变化,但变化规律不同。Three monodispersed tetradecahedra AgBr(Ⅰ) host grains were prepared by microcomputer-controlled balance double-jet method at the condition of various pAg values. After that three monodispersed epitaxial AgCl/AgBr(Ⅰ) cubic emulsion grains also were prepared successfully by epitaxial deposition of AgCl on (Ⅲ) surface of host grains. The dielectric loss curres of epitaxial grains showed two separative peaks corresponding to the contributions of ionic conductivities of AgBr(Ⅰ) and AgCl. Both host and epitaxial grains, their ionic conductivities varied differently with pAg values.

关 键 词：外延乳剂 氯化银 溴碘化银 

分 类 号：TQ572.1[化学工程—精细化工]