Premium
Lithium‐Doped Silica‐Rich MIL‐101(Cr) for Enhanced Hydrogen Uptake
Author(s) -
Panchariya Dharmendra K.,
Kumar E. Anil,
Singh Sanjay K.
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201900833
Subject(s) - silanol , husk , hydrogen storage , doping , hydrogen , materials science , lithium (medication) , chemical engineering , inorganic chemistry , ion , chemistry , catalysis , organic chemistry , medicine , botany , optoelectronics , engineering , biology , endocrinology
Metal‐organic frameworks (MOFs) show promising characteristics for hydrogen storage application. In this direction, modification of under‐utilized large pore cavities of MOFs has been extensively explored as a promising strategy to further enhance the hydrogen storage properties of MOFs. Here, we described a simple methodology to enhance the hydrogen uptake properties of RHA incorporated MIL‐101 (RHA‐MIL‐101, where RHA is rice husk ash—a waste material) by controlled doping of Li + ions. The hydrogen gas uptake of Li‐doped RHA‐MIL‐101 is significantly higher (up to 72 %) compared to the undoped RHA‐MIL‐101, where the content of Li + ions doping greatly influenced the hydrogen uptake properties. We attributed the observed enhancement in the hydrogen gas uptake of Li‐doped RHA‐MIL‐101 to the favorable Li + ion‐to‐H 2 interactions and the cooperative effect of silanol bonds of silica‐rich rice‐husk ash incorporated in MIL‐101.