کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1276612 | 1497561 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Enhancement of hydrogen adsorption by alkali-metal cation doping of metal-organic framework-5 Enhancement of hydrogen adsorption by alkali-metal cation doping of metal-organic framework-5](/preview/png/1276612.png)
Over the past decade, metal-organic frameworks (MOFs) have been extensively studied as a novel approach to store hydrogen. The large surface area and volume of micropores that are intrinsic to MOFs make them ideal for gas adsorption. In addition, we chemically reduced MOF-5 by doping it with alkali metals (Li, Na, and K). We found that the H2 uptake capacity of MOF-5 materials doped with Li, Na, and K exceeded that of a neutral framework by 24%, 68%, and 70%, respectively. Notably, at the same levels of doping, the Li+-doped framework exhibited the strongest H2 binding, and the binding strength decreased sequentially in the order Li+ > Na+ > K+.
► We use alkaline doped MOF as hydrogen storage.
► We make serious experiments for their hydrogen uptake ability and propose a mechanism.
► The surface area of MOF-5 materials is correlated to their hydrogen-storage capacity.
Journal: International Journal of Hydrogen Energy - Volume 37, Issue 8, April 2012, Pages 6721–6726