Structural characterization of chromium atoms in MIL-101 metal organic frameworks using XANES/EXAFS spectroscopy
學年 100
學期 2
出版（發表）日期 2012-04-01
作品名稱 Structural characterization of chromium atoms in MIL-101 metal organic frameworks using XANES/EXAFS spectroscopy
作品名稱（其他語言）
著者 Kuen-Song Lin, Abhijit Krishna Adhikari, Yu-Hsien Su, Chao-Lung Chiang, Khalilalrahman Dehvari
單位
出版者
著錄名稱、卷期、頁數 Chinese Journal of Physics, 50(2), 322-331
摘要 MIL-101 is a chromium-based metal organic framework known to adsorb large amounts of gases such as H2, CO2 and CH4. The framework was synthesized through solvothermal route and the H2 adsorption capacity was measured using a standard gravimetric method. X-ray absorption spectroscopy was employed to understand the fine structure, neighbors, bond distances and coordination numbers. The BET specific surface area of MIL-101nf (treated with NH4F) was 3,241 m^2g^(−1) with a type I hysteresis loop measured from N2 adsorption. The hydrogen storage capacity was 0.163 wt% measured at 450 psig and room temperature. XANES spectra indicated that the valency of MIL-101 MOFs was Cr(III). EXAFS data revealed that MIL-101 had a first shell of Cr-O bonding with bond distance of 1.971 °A with the coordination number of 5.4.
關鍵字 Characterization, MOFs, MIL-101, XANE/EXAFS
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI Scopus Airiti Library Taiwan
產學合作
通訊作者 Kuen-Song Lin
審稿制度 1
國別 TWN
公開徵稿
出版型式 ,電子版
SDGS 氣候行動