Silicon substituted lithium stannum phosphate ceramic electrolytes: structural, electrical and electrochemical properties / Noriah Ab Wahab …[et al.]

Ab Wahab, Noriah and Dzulkurnain, Nurul Akmaliah and Mustaffa, Nur Amalina and Mohamed, Nor Sabirin (2020) Silicon substituted lithium stannum phosphate ceramic electrolytes: structural, electrical and electrochemical properties / Noriah Ab Wahab …[et al.]. Scientific Research Journal, 17 (2). pp. 192-207. ISSN 2289-649X

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Abstract

Structural, electrical, and electrochemical properties of silicon (Si) substituted NASICON-structured lithium stannum phosphate, Li1+ySn2P3- ySiyO12 with 0 < y < 1 that was prepared by the low-temperature waterbased sol-gel method has been investigated. From the structural analysis, all samples in the system from y = 0.1 to 0.5 displayed rhombohedral symmetry. The electrical analysis showed that the total ionic conductivity, was increased with the increase of silicon content, y. A high ionic conductivity value of 6.05 × 10-5 S cm-1 exhibited at y = 0.5 with a temperature of 500 °C. Linear sweep voltammetry analysis of the highest conducting sample showed that the sample was electrochemically stable up to 5.1 V. Meanwhile, the ionic transference number value of the sample was 0.99, suggesting that the majority of mobile charge carriers were predominantly due to ions. Thus, from these results, it indicated that silicon substitution in LiSn2P3O12 ceramic electrolytes is significantly enhanced the electrical and electrochemical properties.

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Item Type: Article
Creators:
Creators
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Ab Wahab, Noriah
UNSPECIFIED
Dzulkurnain, Nurul Akmaliah
UNSPECIFIED
Mustaffa, Nur Amalina
UNSPECIFIED
Mohamed, Nor Sabirin
UNSPECIFIED
Subjects: Q Science > QC Physics > Electricity and magnetism
Q Science > QD Chemistry > Inorganic chemistry > Salts
Divisions: Universiti Teknologi MARA, Shah Alam > Research Management Centre (RMC)
Journal or Publication Title: Scientific Research Journal
UiTM Journal Collections: UiTM Journal > Scientific Research Journal (SRJ)
ISSN: 2289-649X
Volume: 17
Number: 2
Page Range: pp. 192-207
Official URL: https://srj.uitm.edu.my/
Item ID: 34633
Uncontrolled Keywords: solid electrolytes, sol-gel, impedance analysis
URI: https://ir.uitm.edu.my/id/eprint/34633

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34633

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