Development of hydrogen selective microporous
PVDF membrane
Priya Pal
a
, S.P. Chaurasia
a,*
, Sushant Upadhyaya
a
, Rajesh Kumar
b
,
S. Sridhar
c
a
Department of Chemical Engineering, Malaviya National Institute of Technology Jaipur, Rajasthan 302017, India
b
Department of Physics, Malaviya National Institute of Technology Jaipur, Rajasthan 302017, India
c
Membrane Separations Group, CSIR-IICT, Hyderabad 500 007, India
highlights
Pore size increased (0.05e0.65 mm) by LiCl addition.
Porosity increased (25.2e52.3%) by LiCl in PVDF and further by adding TEOS(87.6%).
LiCl increased H
2
Permeability (upto 4.2 MBarrer) and selectivity of H
2
/CO
2
(upto 3.2).
Selectivity of H
2
/CO
2
(upto 4.8) obtain with TEOS.
article info
Article history:
Received 5 March 2019
Received in revised form
30 July 2019
Accepted 12 August 2019
Available online xxx
Keywords:
Polyvinylidene fluoride
Lithium chloride
Tetraethoxy silane
Phase inversion
Hydrophobic
Hydrogen separation
abstract
Hydrogen is a sustainable clean and green energy source used to eliminate the problem of
greenhouse effect. In the present work, the feasibility of gas permeability in separation of
H
2
from CO
2
and N
2
have been examined using polyvinylidene fluoride (PVDF) membranes
synthesised in our laboratory by the phase inversion process. Effect of various non-solvent
additives, such as lithium chloride (LiCl) and Tetraethoxysilane (TEOS) in the PVDF dope
solution, have been studied. The resulted asymmetric flat sheet microporous hydrophobic
membrane, shows higher hydrogen permeability and selectivity over other gases (CO
2
&
N
2
). It has been observed that the MT5 membrane has shown the highest selectivity for
hydrogen in comparison to CO
2
and N
2
. The highest value of selectivity was obtained as 4.8
and 3.7 in case of H
2
/CO
2
and H
2
/N
2
respectively. The permeability of membrane has been
obtained in the range of 2.3e4.2 mega barrer. SEM analysis is used for the investigation of
membrane surface morphology.
© 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Introduction
Since last decades the fossil fuel has been used as a source of
energy but nowadays there are several problems associated
with the use of fossil fuels, such as depletion of reserves and
global warming etc. [1e4] Hence, the use of hydrogen as
renewable energy sources having large energy content, are
needed to provide a suitable option for the future [5,6].
Development of hydrogen is most appropriate way to replace
various hydrocarbons and used for the production energy
* Corresponding author.
E-mail address: spchaurasia.chem@mnit.ac.in (S.P. Chaurasia).
Available online at www.sciencedirect.com
ScienceDirect
journal homepage: www.elsevier.com/locate/he
international journal of hydrogen energy xxx (xxxx) xxx
https://doi.org/10.1016/j.ijhydene.2019.08.112
0360-3199/© 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Please cite this article as: Pal P et al., Development of hydrogen selective microporous PVDF membrane, International Journal of
Hydrogen Energy, https://doi.org/10.1016/j.ijhydene.2019.08.112