Architecturing Nanospace via Thermal Rearrangement for Highly Efficient Gas Separations
详细信息 查看全文
- 作者：Aaron W. Thornton ; Cara M. Doherty ; Paolo Falcaro ; Dario Buso ; Heinz Amenitsch ; Sang Hoon Han ; Young Moo Lee ; Anita J. Hill
- 刊名：Journal of Physical Chemistry C
- 出版年：2013
- 出版时间：November 21, 2013
- 年：2013
- 卷：117
- 期：46
- 页码：24654-24661
- 全文大小：554K
- 年卷期：v.117,no.46(November 21, 2013)
- ISSN：1932-7455
文摘
The ability to monitor free volume formation during space-making treatments is critical for the ultrafine tuning of nanospace for efficient gas separation. Here, investigating the polymer thermal rearrangement using synchrotron in situ small-angle X-ray scattering for the first time and combining this information with transport theory, we elucidate the evolution of nanospace features in polymer-based gas separation membranes. The proposed nanospace monitoring technique encompasses the structure鈥損roperty relationships, therefore offering a powerful tool for tuning the polymer properties for particular gas-related clean energy applications. These results demonstrate that the fine control of the nanospace dimension and magnitude leads to a drastic improvement in gas separation performance above any material to date.