| 作成者 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 本文言語 |
|
| 出版者 |
|
| 発行日 |
|
| 収録物名 |
|
| 巻 |
|
| 開始ページ |
|
| 出版タイプ |
|
| アクセス権 |
|
| 権利関係 |
|
| 権利関係 |
|
| 関連DOI |
|
| 関連URI |
|
| 関連HDL |
|
| 概要 |
We propose a novel method for synthesizing carbon molecular sieves (CMS) with enhanced performance for O_2 separation from air using flow-type electrochemical oxidation (F-ECO). The F-ECO process intr...oduces oxygen-containing functional groups (OCFGs) at pore entrances of activated carbon (AC), creating an ultrathin layer that works as an energy barrier for improving O_2 selectivity. The parameters for the F-ECO process were optimized using an experimental design method. The microstructure and surface species of the F-ECO-treated AC samples were characterized using X-ray photoelectron spectroscopy and gas adsorption measurements. The F-ECO treatment slightly reduced micropore volume but dramatically increased the O_2 dynamic selection coefficient of AC, indicating improved N_2/O_2 separation. The optimal F-ECO conditions produced a CMS with O_2 selectivity comparable to the CMS provided by conventional methods in industry, along with a faster O_2 adsorption rate while minimizing the decrease in effective O_2 adsorbed amount. This performance was achieved by carefully controlling the surface oxidation proposed by the experimental design method based on Bayesian optimization. The results demonstrate the potential of this approach for developing energy-efficient O_2 enrichment technologies.続きを見る
|
Mendeley出力
