Gravimetric Analyzer fo Gas Sorption Studies

摘要提案题目：气体吸附研究的重量分析仪提案编号：cts -0417861首席研究员：Eva marand机构：弗吉尼亚理工学院和州立大学该提案的目标是确保购买IGA重量分析仪的资金，这将使PI能够准确测量纳米复合膜中气体和蒸汽吸附的大小和动力学。这种吸附信息将补充现有的恒体积渗透装置在实验室中已经获得的渗透数据。总之，这两个独立的实验将使PI能够辨别纳米复合膜中的传输机制，从而促进对非均质材料中气体传输的基本理解，并允许为特定应用高效设计纳米复合膜。获得重量分析仪将直接受益的研究项目包括聚合物/沸石混合基质材料的开发和表征，用于气体分离应用的聚合物/纳米层-磷酸铝和聚合物/碳纳米管复合膜，以及用于传感器、膜和催化的聚合物/硅氧烷纳米复合材料。这些都是多方研究者的项目，包括弗吉尼亚理工大学的教职员工以及其他机构的教职员工，他们都可以使用这个仪器。就更广泛的影响而言，提供重量分析仪将促进与这些研究项目有关的各种教育和外联活动。

AbstractProposal Title: Gravimetric Analyzer to Gas Sorption StudiesProposal Number: CTS-0417861Principal Investigator: Eva MarandInstitution: Virginia Polytechnic Institution and State UniversityThe goal of this proposal is to secure funding for the purchase of an IGA Gravimetric Analyzer, which would enable the PI to accurately measure the magnitude and dynamics of gas and vapor sorption in nano-composite membranes. Such sorption information would complement permeation data already obtainable in the laboratory with an existing constant-volume permeation apparatus. Together, these two separate experiments would allow the PI to discern the transport mechanism in nano-composite membranes, thus promoting a fundamental understanding of gas transport in heterogeneous materials and permitting efficient design of nano-composite membranes for specific applications. Research projects, which would directly benefit from the acquisition of the gravimetric analyzer, include the development and characterization of polymer/zeolite mixed matrix materials, polymer/nano-layer-aluminophosphate and polymer/carbon nanotube composite membranes for gas separation applications, as well as polymer/silsesquioxane nanocomposites, for applications in sensors, membranes and catalysis. These are multi-investigator projects, involving Virginia Tech faculty as well as faculty from other institutions, all of whom would have access to this instrument. In terms of the broader impacts, the availability of a gravimetric analyzer would promote the various educational and outreach activities, which are associated with these research projects.