Acid-Catalyzed Synthesis and CO2 Adsorption of Cu and Cu-Zn Bimetallic Imidazolate Frameworks
學年 107
學期 1
出版（發表）日期 2018-08-01
作品名稱 Acid-Catalyzed Synthesis and CO2 Adsorption of Cu and Cu-Zn Bimetallic Imidazolate Frameworks
作品名稱（其他語言）
著者 Chao-Lung Chiang, Abhijit Krishna Adhikari, Kuen-Song Lin
單位
出版者
著錄名稱、卷期、頁數 Nanoscience and Nanotechnology Letters 8(8), p.621-627
摘要 Copper and copper-zinc imidazolate frameworks were successfully synthesized using improved mild acid catalyzed method. Imidazolates were directly reacted with metal oxides and formed copper or copper-zinc imidazolate frameworks. Copper-based mono- and bi-metallic imidazolate catalysts were characterized by X-ray diffraction (XRD), nitrogen adsorption, Fourier transform infrared spectra (FTIR), thermogravimetry (TG), XANES/EXAFS and CO2 adsorption capacities were measured. XANES spectra confirmed the presence of Cu(II) in Cu(im)2, Cu(mim)2, Cu(bim)2 and Cu2Zn(im)6, while Cu(I) in Cu2Zn(im)4. The Cu–O bond distance in Cu(im)2 sample was 2.00 Å with the coordination number of 2.4. It has been found that the CO2 adsorption capacity is directly related to the total pore volume and the specific surface area of the metal imidazolates. Cu(im)2 showed the highest CO2 adsorption capacity of 8.3 mmol g−1 measured at 273 K and 25 bar. The BET specific surface area of Cu(im)2 was 83.94 m2g−1 with the total pore volume of 22.2 cm3g−1.
關鍵字 ACID-CATALYZED SYNTHESIS; CO2 ADSORPTION; COPPER-IMIDAZOLATE FRAMEWORKS; XANES/EXAFS
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI Scopus
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
SDGS 永續城市與社區,氣候行動