Exploratory Experiments on Surface Coating with ElectrosprayIons

电喷雾离子表面涂层的探索性实验

• 批准号: 8907291
• 负责人: John Fenn
• 金额: $ 2.98万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-03-01 至 1990-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8907291&HistoricalAwards=false
• 关键词: Exploratory; Experiments; Surface; Coating; ElectrosprayIons

The purpose of this research is to prepare and characterize surface layers by depositing ionic species from an electrospray source on various kinds of substrates. These species are produced by electrostatically dispersing solutions of parent molecules as a fine spray or fog of charged droplets into a bath gas. Evaporation of the droplets increases their surface charge density so that the resulting electric field ultimately becomes small enough to desorb ions into the ambient gas. These ions can comprise almost any solute species in aggregation with cations or anions and can have molecular weights up to at least 40,000 with as many as 45 or more charges per ion. They will be deposited on dielectric substrates (with an underlying conducting electrode) to produce surfaces that are either charged or neutralized (by a simultaneous or subsequent flux of ions of opposite sign. They will also be deposited on conducting substrates to produce coatings of electrically neutral species. The physical and chemical properties of the resulting novel surfaces will be characterized.

这项研究的目的是准备和表征 表面层通过沉积离子物种从一个 在各种基材上的电喷雾源。 这些 物种是通过静电分散溶液产生的 母体分子的带电小滴的细喷雾或雾 变成了沐浴气体 液滴的蒸发增加了它们的 表面电荷密度使得产生的电场 最终变得足够小以将离子解吸到环境中 气体 这些离子可以包括几乎任何溶质物质， 与阳离子或阴离子聚集，并可具有分子 重量最少40，000，最多45或更多 每离子电荷数 它们将沉积在电介质上 基板（与下面的导电电极），以产生 被充电或中和的表面（通过 同时或随后的相反符号的离子流。 它们也将沉积在导电基底上， 产生电中性物质的涂层。 物理 和化学性质的所得新的表面将是 表征了