首页> 美国政府科技报告 >A STUDY OF ADSORPTION ON MERCURY BY DOUBLE LAYER CAPACITY MEASUREMENTS PARTⅠ ADSORPTION AT EXPANDING AND RECEDING MERCURY SURFACES PARTⅡ BEHAVIOR MONLAYER OF PALMITIC ACID ON MERCURY-COATED ELECTRODES
【24h】

A STUDY OF ADSORPTION ON MERCURY BY DOUBLE LAYER CAPACITY MEASUREMENTS PARTⅠ ADSORPTION AT EXPANDING AND RECEDING MERCURY SURFACES PARTⅡ BEHAVIOR MONLAYER OF PALMITIC ACID ON MERCURY-COATED ELECTRODES

机译:双层容量测量对汞的吸附研究第一部分扩展和回收汞表面的吸附第二部分氨基酸在汞涂层电极上的行为单层

获取原文

摘要

Part I. Prom the double-layer capacity measurements of surface-active substances with an expanding and receding mercury electrode, it was found that though a compressed adsorbed film might be formed by receding a mercury surface, as an intermediate state immediately after a recession, it was too unstable to exist for more than one minute and changed very rapidly into the same stable film as observed in expansion, which might be considered to correspond to an equilibrium state.nIt is also confirmed that a multimolecular adsorbed layer is formed at a mercury-solution interface in the saturated solution of n-nonanoic (n-pelargonic) acid.nPart II. Experimental conditions have been found under which a mercury-coated platinum electrode can be prepared reproducibly with the same double-layer properties as pure mercury. An oriented monolayer film of palmitic acid can be formed on such a mercury-coated platinum electrode by applying the Langmuir-Blodgett technique. Such a monolayer film of palmitic acid was found not so stable at a mercury-solution interface as at an air-solution interface and the molecules of palmitic acid diffused away very slowly from the electrode surface to the bulk of the solution. The differential capacity of the oriented monolayer of palmitic acid on a mercury-coated platinum electrode was found 4.3 μf/cm2 in 0.1 M NaClC-4 at -0.6 volt vs. S.C.E., the potential of maximum stability of the adsorbed monolayer.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号