期刊論文
| 學年 | 106 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2018-05-09 |
| 作品名稱 | Enhancement of CO2 Adsorption and Separation for Non-porous Zn/Co Azolate Frameworks via Ethanol-induced Structural Transformation |
| 作品名稱（其他語言） | |
| 著者 | Chiang Chao–Lung; Lin Kuen–Song; Sat Septian Dwitya |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of the Taiwan Institute of Chemical Engineers 98, p.99-112 |
| 摘要 | Non-porous zinc/cobalt azolate frameworks with diamond-type crystal structure (MAF–31/ZIF–D–CoM) have been synthesized in large scale with an acid-catalyzed process. Afterward, an ethanol exposure process was applied for 1, 7, and 14 days to transform MAF–31/ZIF–D–CoM into porous T–MAF–4/T–ZIF–67. Two porous zinc/cobalt azolate frameworks standards (MAF–4/ZIF–67) with sodalite-type crystal structures were prepared with a solvent-free method for comparison with T–MAF–4/T–ZIF–67. Effects of ethanol vapor exposure on structual transformation of MAF–31/ZIF–D–CoM were characterized throughly. Obvious structural transfomations between non-porous and porous zinc/cobalt azolate frameworks were found with X–ray diffraction (XRD), Field–emission scanning electron microscope (FE–SEM), and X–ray absorption near-edge structure/extended X–ray absorption fine structure (XANES/EXAFS) spectra. After the 14-day ethanol vapor exposure, the CO2 adsorption uptakes of MAF–31 and ZIF–D–CoM in low/high pressures were enhanced from 5.18 × 10−5/0.68 and 1.20 × 10−4/0.18 to 1.76 × 10−3/8.27 and 1.99 × 10−3/11.2 mmol/g, respectively. The CO2 selectivities of MAF–31/ZIF–D–CoM were also improved from 0.29/2.34 to 6.33/16.47. In addition, CO2 adsorption over zinc/cobalt azolate frameworks obeyed both Langmuir/Freundlich adsorption isotherm models with good agreements. |
| 關鍵字 | Carbon dioxide; Adsorption/separation; Zinc/cobalt azolate frameworks; Structural transformation; XANES/EXAFS |
| 語言 | en |
| ISSN | 1876-1070; 1876-1089 |
| 期刊性質 | 國內 |
| 收錄於 | SCI SSCI Scopus |
| 產學合作 | |
| 通訊作者 | Kuen-Song Lin |
| 審稿制度 | 是 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/127692 ) |