Redox Magnetoconvection of Solution in Small-Scale Electrochemical Systems

小型电化学系统中溶液的氧化还原磁对流

• 批准号: 0719097
• 负责人: Ingrid Fritsch
• 金额: $ 47万
• 依托单位: University of Arkansas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0719097&HistoricalAwards=false
• 关键词: Redox; Magnetoconvection; Solution; Small; Scale

Professors Ingrid Fritsch of the University of Arkansas and Nicholas Leventis and Kakkattukuzhy M. Isaac of the University of Missouri, Rolla, are supported by the Analytical and Surface Chemistry Program for their research on redox magnetoconvection of solution in small-scale electrochemical systems. The research will greatly expand the understanding of the fundamental science of redox magnetoconvective fluidics (stirring/mixing and directed flow) as it pertains to small-scale, liquid-based systems, through experiment and modeling. The relative impact of the Lorentz, concentration-gradient, and magnetic-field gradient forces will be considered. A variety of microelectrode geometries, dimensions, configurations, and arrays will be used in studies to determine how spatial distribution of chemical species, magnitude of faradaic and non-faradaic current and magnetic field vectors, as well as the nature of the current carrying species, contribute to flow dynamics, velocities, and profiles. Mathematical modeling and numerical simulations will be used to aid in understanding the many factors that contribute to the flow and to deconvolute factors that are experimentally impossible to separate.Small-scale fluid propulsion, or microfluidics, is essential in chip-based devices to pump and mix liquids, leading to automated chemical analysis having applications in proteomics, genomics, environmental, medical and clinical areas. The findings of the proposed studies will help to determine the role and extent that redox magnetoconvection could participate in this application.

阿肯色州大学的Ingrid Fritsch教授、Nicholas Leventis教授和Kakkattukuzhy M.艾萨克的密苏里州，罗拉大学，是由分析和表面化学程序的支持，他们的研究在小规模电化学系统中的溶液的氧化还原磁对流。该研究将通过实验和建模，大大扩展对氧化还原磁对流流体（搅拌/混合和定向流）基础科学的理解，因为它涉及小规模的基于液体的系统。将考虑洛伦兹力、浓度梯度力和磁场梯度力的相对影响。各种微电极的几何形状，尺寸，配置和阵列将用于研究，以确定化学物质的空间分布，法拉第和非法拉第电流和磁场矢量的大小，以及载流物质的性质，有助于流动动力学，速度和配置文件。数学建模和数值模拟将被用来帮助理解许多因素，有助于流动和deconvolute因素，是实验上不可能分离。小规模的流体推进，或微流体，是必不可少的基于芯片的设备泵送和混合液体，导致自动化学分析具有应用在蛋白质组学，基因组学，环境，医学和临床领域。 拟议的研究结果将有助于确定氧化还原磁对流的作用和程度，可以参与这一应用。