The viability of MCM-41 as separator in secondary alkaline cells
The viability of MCM-41 membrane as a separator material in secondary alkaline cell is investigated. The inorganic membrane was employed in an alkaline nickel-zinc system. MCM-41 mesoporous material consists of arrays of hexagonal nano-pore channels. The membrane was synthesized using sol-gel rou...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English English |
| Published: |
Institute of Physics Publishing
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/65349/ http://irep.iium.edu.my/65349/ http://irep.iium.edu.my/65349/ http://irep.iium.edu.my/65349/1/65349_The%20viability%20of%20MCM-41%20as%20separator%20in%20secondary_conference%20article.pdf http://irep.iium.edu.my/65349/2/65349_The%20viability%20of%20MCM-41%20as%20separator%20in%20secondary_scopus.pdf |
| Summary: | The viability of MCM-41 membrane as a separator material in secondary alkaline
cell is investigated. The inorganic membrane was employed in an alkaline nickel-zinc system.
MCM-41 mesoporous material consists of arrays of hexagonal nano-pore channels. The
membrane was synthesized using sol-gel route from parent solution comprising of quarternary
ammonium surfactant, cethyltrimethylammonium bromide C16H33(CH3)3NBr (CTAB),
hydrochloric acid (HCl), deionized water (H2O), ethanol (C2H5OH), and tetraethylortosilicate
(TEOS). Both the anodic zinc/zinc oxide and cathodic nickel hydroxide electrodeposited film
were coated with MCM-41 membrane. The Ni/MCM-41/Zn alkaline cell was then subjected to
100-cycle durability test and the structural stability of MCM-41 separator throughout the
progression of the charge-discharge cycles is studied. X-ray diffraction (XRD) analysis on the
dismantled cell shows that MCM-41 began to transform to lamellar MCM-50 on the 5th cycle
and transformed almost completely on the 25th cycle. The phase transformation of MCM-41
hexagonal structure into gel-like MCM-50 prevents the mesoporous cell separator from
diminished in the caustic alkaline surround. This work has hence demonstrated MCM-41
membrane is viable to be employed in secondary alkaline cells. |
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