On complexation between methyl cellulose and ammonium nitrate

Majid, Siti Rohana and Arof, Abdul Kariem and Shuhaimi, N.E.A. (2009) On complexation between methyl cellulose and ammonium nitrate. Materials Research Innovations, 13 (3). pp. 239-242. ISSN 1432-8917, DOI https://doi.org/10.1179/143307509x440406.

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Official URL: https://doi.org/10.1179/143307509X440406


Films of methyl cellulose (MC) doped with ammonium nitrate (NH(4)NO(3)) salt were prepared by solution casting. From X-ray diffraction, it can be inferred that films of pure MC and MC doped with 5 to 25 wt-% NH(4)NO(3) are amorphous. A small peak at 2 theta similar to 8 degrees indicates that there is interaction between MC and NH(4)NO(3) and a complex has formed. Pure MC has a conductivity of 3.08 x 10(-11) S cm(-1) at room temperature and the conductivity of MC doped with 25 wt-% NH(4)NO(3) is 2.10 x 10(-6) S cm(-1). The increase in conductivity is attributed to the increase in amorphousity and to the increase in number of mobile cations. However, for the sample doped with 30 wt-% NH(4)NO(3), some of the salt has recrystallised out of the polymer host. This is evidenced from the X-ray diffractogram. Recrystallisation of the salt reduces the number of mobile ions for conduction and resulted in a decrease in conductivity. The highest conducting sample was used as an electrolyte in an electric double layer capacitor.

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Methyl cellulose; Ammonium nitrate; Conductivity cyclic voltammetry; Amorphousity; Edlc; Conducting polymer electrolyte; Li-ion conduction; Salt concentration; Chitosan; Methylcellulose; Acrylonitrile; Batteries; Behavior; Films; Oxide
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 23 Jul 2013 00:42
Last Modified: 27 Aug 2019 01:24
URI: http://eprints.um.edu.my/id/eprint/7648

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