Formation of Surfaces and Interfaces Designed at Atomic/Molecular Level

原子/分子水平设计的表面和界面的形成

基本信息

批准号：
12305055
负责人：
ITAYA Kingo
金额：
$ 23.94万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

项目摘要

Understanding the phenomena that occur on electrode surfaces such as deposition of metals and adsorption of organic molecules is essential to the industrial applications including the development of devices. We obtained the following results in the fiscal year 2001. 1) Underpotential deposition (UPD) and bulk deposition of Cu onto Pd(111) in solution : during the UPD that occurred in one step and the bulk deposition, sulfate ions always existed on Pd and Cu surfaces. 2) Adlayer structures of anthracene on Ag single-crystal surfaces in solution : anthracene were adsorbed on Ag(111), Ag(100), Ag(110) surfaces, and the adlayer structures were assigned as (2【square root】3 x 2【square root】3)R30°, c(4 x 6), and c(4 x 4), respectively. 3) Adlayers of CN on Ir(111) in alkaline solution : the adlayer structure of CN forming a (2【square root】3 x 2【square root】3)R30° structure were found to consist of units of 6-membered rings of CN, and the complexation of Na^+ took place in the rings. 4) Adlayers of coronene on Au(111) surface in solution : the adlayer of coronene was formed in benzene solution by immersing a Au(111) substrate, on which a highly ordered adlayer of coronene was formed in a (4 x 4) symmetry. 5) Adlayer structure of Br on Ag(100) surface and the formation of AgBr on Ag(100) : Br on Ag(100) formed a c(2 x 2) lattice, on which AgBr layers were epitaxially grown. 6) Formation processes of a p-xylene adlayer on Rh(111) surface in UHV : the adlayer of p-xylene grew gradually on Rh(111) surface to form a c(4 x 2【square root】3)rect structure, which was previously found to be formed in solution.As described above, we successfully modified metal surfaces and interfaces with an atomic level both in liquid and in vacuum environments, optimizing parameters such as an electrode potential and a vapor pressure.

了解电极表面发生的现象（例如金属沉积和有机分子吸附）对于包括设备开发在内的工业应用至关重要。我们在 2001 财年获得了以下成果。 1) 欠电位沉积 (UPD) 和本体。 Cu 在溶液中沉积到 Pd(111) 上：在一步发生的 UPD 和体沉积过程中，硫酸根离子始终存在于 Pd 和 Cu 表面 2) Ag 上蒽的 Adlayer 结构。溶液中单晶表面：蒽吸附在Ag(111)、Ag(100)、Ag(110)表面，吸附层结构为(2【平方根】3 x 2【平方根】3)R30 °、c(4 x 6) 和 c(4 x 4)，分别为碱性溶液中 CN 在 Ir(111) 上的吸附层：吸附层结构CN形成(2【平方根】3 x 2【平方根】3)R30°结构，发现由CN的6元环单元组成，Na^+在环中发生络合作用4)。溶液中Au(111)表面晕苯的吸附层：通过将Au(111)基板浸入苯溶液中形成晕苯的吸附层，在其上形成高度有序的晕苯的吸附层Br 在 Ag(100) 表面上的 Adlayer 结构以及 AgBr 在 Ag(100) 上的形成 (4 x 4) 对称：Br 在 Ag(100) 上形成 c(2 x 2) 晶格，其上有 AgBr 6）UHV中Rh(111)表面对二甲苯吸附层的形成过程：对二甲苯吸附层逐渐生长。 Rh(111)表面形成c(4 x 2【平方根】3)矩形结构，此前发现该结构是在溶液中形成的。如上所述，我们成功地在液体和液体中对金属表面和界面进行了原子水平的修饰在真空环境中，优化电极电位和蒸气压等参数。