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

• 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

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.

化学部的分析和表面化学（ASC）计划支持弗吉尼亚联邦大学的Maryanne Collinson教授的研究计划。Collinson教授和她的学生将使用多方面的方法设计和制造三种新的高表面积材料，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凹陷电极作为纳米级花盆，使用新开发的电沉积技术以电化学方式生长垂直排列的二氧化硅柱的3D阵列。从分析的角度来看，这种高表面积的三维载体提供了一种通过使封装在多孔网络中的试剂更容易接近扩散基底来显著改善响应时间、回收率和通量的手段，这是改善其在化学分析中的性能所必需的任务。 这项研究将为本科生和研究生提供极好的培训机会，在化学和材料科学与工程之间的界面上高度跨学科的领域。 除了他们的研究外，Collinson教授和她的学生将通过专门为K-5儿童设计的外展活动的发展，向更广泛的受众推广化学。