Synthesis, Characterization, and Hydrogen Storage Enhancement of M2(BDC)2dabco with Palladium-Doped Activated Carbon
學年 102
學期 2
出版（發表）日期 2014-04-01
作品名稱 Synthesis, Characterization, and Hydrogen Storage Enhancement of M2(BDC)2dabco with Palladium-Doped Activated Carbon
作品名稱（其他語言）
著者 Lin, Kuen-Song; Adhikari, Abhijit Krishna; Chang, Kai-Che; Chia
單位
出版者
著錄名稱、卷期、頁數 Journal of Nanoscience and Nanotechnology 14( 4),p. 2700-2708
摘要 Two bi-organic type metal organic frameworks (MOFs) such as Co2(BDC)2dabco and Zn2(BDC)2 dabco have been synthesized by hydrothermal method and characterized along with hydrogen adsorption. The hydrogen adsorption capacity of these MOFs was increased after doping by palladium-activated carbon. Co2(BDC)2dabco has cracked and folded thin film like surface while Zn2(BDC)2dabco has a brick-typed cubic structure with particle size about 10∼15 μm identified by FE-SEM. The XRD patterns represents that both MOFs have the well crystalline structure. Nitrogen adsorption isotherms show that both structures have Type I adsorption isotherm with the BET specific surface area of 1,390 and 1,433 m2 g−1 for Co2(BDC)2dabco and Zn2(BDC)2dabco, respectively. Pristine Co2(BDC)2dabco and Zn2(BDC)2dabco can store about 0.22 and 0.25 wt.% of H2 measured at 298 K and 32 bar. This capacity was greatly enhanced by doping palladium-activated carbon to 0.31 and 0.41 wt.%, respectively. Moreover, both structures were also characterized by XANES/EXAFS. EXAFS spectra indicate that Co2(BDC)2dabco has the Co—O bond distance of 2.030 Å with the coordination number of 4.2 while Zn2(BDC)2dabco has 2.015 Å bond distance of Zn—O with the coordination number of 3.4.
關鍵字
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI SSCI Scopus
產學合作
通訊作者 Kuen-Song Lin
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
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