High Surface Area Nanostructured Materials for Chemical Analysis

用于化学分析的高表面积纳米结构材料

基本信息

批准号：
0847613
负责人：
Maryanne Collinson
金额：
$ 28.06万
依托单位：
Virginia Commonwealth University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2009
资助国家：
美国
起止时间：
2009-09-01 至 2012-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0847613&HistoricalAwards=false
关键词：
Surface Area Nanostructured Materials Chemical

项目摘要

The Analytical and Surface Chemistry (ASC) Program of the Division of Chemistry supports the research program of Prof. Maryanne Collinson of Virginia Commonwealth University. Prof. Collinson and her students will design and fabricate three new classes of high surface area materials using a multifaceted approach that merges key features of sol-gel chemistry, templating, lithography, electrodeposition, and thin film preparation. At the heart of this proposal is the use of recessed electrodes as nanoscale flower pots to electrochemically grow 3D arrays of vertically aligned silica pillars using newly developed electrodeposition techniques. From an analytical perspective, such high surface area, three-dimensional supports provide a means to significantly improve response times, recovery rates, and throughput by enabling reagents encapsulated in the porous network to be more accessible to a diffusing substrate, a task that is necessary to improve their performance in chemical analysis. The study will provide excellent training opportunities for undergraduate and graduate students in a highly inter-disciplinary area at the interface between chemistry and material science and engineering. In addition to their research, Prof. Collinson and her students will promote chemistry to a broader audience through the development of an outreach activity specifically designed for K-5 children.

化学系分析与表面化学（ASC）项目支持弗吉尼亚联邦大学Maryanne Collinson教授的研究项目。 Collinson 教授和她的学生将采用多方面的方法设计和制造三类新的高表面积材料，该方法融合了溶胶-凝胶化学、模板、光刻、电沉积和薄膜制备的关键特征。该提案的核心是使用嵌入式电极作为纳米级花盆，利用新开发的电沉积技术电化学生长垂直排列的二氧化硅柱的 3D 阵列。从分析的角度来看，如此高的表面积、三维支撑提供了一种显着提高响应时间、回收率和通量的方法，使封装在多孔网络中的试剂能够更容易地接触到扩散基质，这是一项必要的任务提高他们在化学分析中的表现。该研究将为本科生和研究生在化学与材料科学与工程交叉的高度跨学科领域提供极好的培训机会。除了研究之外，科林森教授和她的学生还将通过开展专门为 K-5 儿童设计的外展活动，向更广泛的受众推广化学。