Abstract
Lithium doped MIL-101 and MIL-53(Al) was prepared by solution impregnation method from Metal-Organic Frameworks (MOFs), MIL-101 and MIL-53(Al) using lithium naphthalenide (C10H7Li) solution. The doping was repeated to get two different concentrations of lithium doped MIL-101 and MIL-53(Al) respectively. The powder X-ray diffraction studies of the doped materials showed that the framework crystallinity of the synthesized materials was not affected by lithium doping. However N2 adsorption–desorption studies at 77 K showed a decrease in the BET surface area and pore volume values as the concentration of Li ions increases inside the framework. Hydrogen adsorption–desorption measurements were performed in lithium doped MIL-101 and MIL-53(Al) samples both at 77 and 298 K under high pressure (up to 100 bar). The results obtained were original and also useful considering that the experimental studies of high pressure hydrogen adsorption in lithium doped MOFs are scarce. This study also showed that the hydrogen adsorption capacities of MIL-101 and MIL-53(Al) can be significantly enhanced by lithium ion doping but controlled doping of lithium is necessary for good adsorption capacities as higher concentration of lithium destroys the framework structure of the materials.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
