Chemically Activated Covalent Triazine Frameworks with Enhanced Textural Properties for High Capacity Gas Storage
| Autor: | Yoon J. Lee, Ali Coskun, Siddulu Naidu Talapaneni |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science High capacity 02 engineering and technology Polymer Microporous material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Adsorption chemistry Chemical engineering Covalent bond Organic chemistry General Materials Science 0210 nano-technology Porous medium Porosity Triazine |
| Zdroj: | ACS applied materialsinterfaces. 9(36) |
| ISSN: | 1944-8252 |
| Popis: | Chemical activation of porous/nonporous materials to achieve high surface area sorbents with enhanced textural properties is a very promising strategy. The chemical activation using KOH, however, could lead to broad distribution of pores originating from the simultaneous pore deepening and widening pathways. Accordingly, establishing correlation between the chemical/textural properties of starting porous/nonporous materials and various pore formation mechanisms is quite critical to realize superior porosity and gas uptake properties. Here, we show that the chemical and textural properties of starting porous organic polymers, that is, covalent triazine frameworks (CTF), have profound effect on the resulting porosity of the frameworks. The chemical activation of microporous CTF-1 using KOH at 700 °C enabled the preparation of chemically activated CTF-1, caCTF-1-700, which predominantly showed pore deepening, leading to an increased surface area of 2367 m2 g–1 and significantly enhanced gas adsorption proper... |
| Databáze: | OpenAIRE |
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