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Updated: Jun 17, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
Published on: April 12, 2019
Hydrogen uptake capacity of C2H4Sc and its ions: a density functional study
Nitin Wadnerkar1, Vijayanand Kalamse, Ajay Chaudhari
1School of Physical Sciences, S. R. T. M. University, Nanded-431 606, India.
Abstract:
We report the gravimetric hydrogen uptake capacity of C(2)H(4)Sc complex and isoelectronic ions using Density Functional Theory. We predict that C(2)H(4)Sc(+) can bind maximum seven hydrogen molecules in dihydrogen form giving gravimetric uptake capacity of 16.2 wt %, larger by about 2 and 4 wt % than the neutral and anion, respectively. We also found that the interaction of hydrogen molecules with C(2)H(4)Sc(+) ion is characteristically different than that with neutral and anion. Vibrational spectroscopic study reveals that C(2)H(4)Sc and isoelectronic ions are quantum mechanically stable with their characteristic change in respective identified mode. The large gravimetric H(2) uptake capacity of C(2)H(4)Sc(+) is well above the target specified by Department of Energy (DOE) by 2015.
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