Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability
In this report, a facile solution casting technique was used to fabricate polymer blend electrolytes of chitosan (CS):poly (ethylene oxide) (PEO):NH4SCN with high electrochemical stability (2.43V). Fourier transform infrared (FTIR) spectroscopy was used to investigate the polymer electrolyte formati...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI - Open Access Publishing
2019
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/26621/1/Structural%2C%20impedance%2C%20and%20EDLC%20characteristics%20of%20Proton.pdf |
| _version_ | 1796993702113050624 |
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| author | Aziz, Shujahadeen B. Abdulwahid, Rebar T. Hamsan, Muhamad H. Brza, Mohamad A. Abdullah, Ranjdar M. Kadir, Mohd F. Z. Saifful Kamaluddin, Muzakir |
| author_facet | Aziz, Shujahadeen B. Abdulwahid, Rebar T. Hamsan, Muhamad H. Brza, Mohamad A. Abdullah, Ranjdar M. Kadir, Mohd F. Z. Saifful Kamaluddin, Muzakir |
| author_sort | Aziz, Shujahadeen B. |
| collection | UMP |
| description | In this report, a facile solution casting technique was used to fabricate polymer blend electrolytes of chitosan (CS):poly (ethylene oxide) (PEO):NH4SCN with high electrochemical stability (2.43V). Fourier transform infrared (FTIR) spectroscopy was used to investigate the polymer electrolyte formation. For the electrochemical property analysis, cyclic voltammetry (CV), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS) techniques were carried out. Referring to the FTIR spectra, a complex formation between the added salt and CS:PEO was deduced by considering the decreasing and shifting of FTIR bands intensity in terms of functional groups. The CS:PEO:NH4SCN electrolyte was found to be electrochemically stable as the applied voltage linearly swept up to 2.43V. The cyclic voltammogram has presented a wide potential window without showing any sign of redox peaks on the electrode surface. The proved mechanisms of charge storage in these fabricated systems were found to be double layer charging. The EIS analysis showed the existence of bulk resistance, wherein the semicircle diameter decreased with increasing salt concentration. The calculated maximum DC conductivity value was observed to be 2.11 × 10−4 S/cm for CS:PEO incorporated with 40 wt% of NH4SCN salt. The charged species in CS:PEO:NH4SCN electrolytes were considered to be predominantly ionic in nature. This was verified from transference number analysis (TNM), in which ion and electron transference numbers were found to be tion = 0.954 and tel = 0.045, respectively. The results obtained for both ion transference number and DC conductivity implied the possibility of fabricating electrolytes for electrochemical double layer capacitor (EDLC) device application. The specific capacitance of the fabricated EDLC was obtained from the area under the curve of the CV plot. |
| first_indexed | 2024-03-06T12:37:41Z |
| format | Article |
| id | UMPir26621 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:37:41Z |
| publishDate | 2019 |
| publisher | MDPI - Open Access Publishing |
| record_format | dspace |
| spelling | UMPir266212019-11-27T04:28:33Z http://umpir.ump.edu.my/id/eprint/26621/ Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability Aziz, Shujahadeen B. Abdulwahid, Rebar T. Hamsan, Muhamad H. Brza, Mohamad A. Abdullah, Ranjdar M. Kadir, Mohd F. Z. Saifful Kamaluddin, Muzakir TP Chemical technology In this report, a facile solution casting technique was used to fabricate polymer blend electrolytes of chitosan (CS):poly (ethylene oxide) (PEO):NH4SCN with high electrochemical stability (2.43V). Fourier transform infrared (FTIR) spectroscopy was used to investigate the polymer electrolyte formation. For the electrochemical property analysis, cyclic voltammetry (CV), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS) techniques were carried out. Referring to the FTIR spectra, a complex formation between the added salt and CS:PEO was deduced by considering the decreasing and shifting of FTIR bands intensity in terms of functional groups. The CS:PEO:NH4SCN electrolyte was found to be electrochemically stable as the applied voltage linearly swept up to 2.43V. The cyclic voltammogram has presented a wide potential window without showing any sign of redox peaks on the electrode surface. The proved mechanisms of charge storage in these fabricated systems were found to be double layer charging. The EIS analysis showed the existence of bulk resistance, wherein the semicircle diameter decreased with increasing salt concentration. The calculated maximum DC conductivity value was observed to be 2.11 × 10−4 S/cm for CS:PEO incorporated with 40 wt% of NH4SCN salt. The charged species in CS:PEO:NH4SCN electrolytes were considered to be predominantly ionic in nature. This was verified from transference number analysis (TNM), in which ion and electron transference numbers were found to be tion = 0.954 and tel = 0.045, respectively. The results obtained for both ion transference number and DC conductivity implied the possibility of fabricating electrolytes for electrochemical double layer capacitor (EDLC) device application. The specific capacitance of the fabricated EDLC was obtained from the area under the curve of the CV plot. MDPI - Open Access Publishing 2019-09-27 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/26621/1/Structural%2C%20impedance%2C%20and%20EDLC%20characteristics%20of%20Proton.pdf Aziz, Shujahadeen B. and Abdulwahid, Rebar T. and Hamsan, Muhamad H. and Brza, Mohamad A. and Abdullah, Ranjdar M. and Kadir, Mohd F. Z. and Saifful Kamaluddin, Muzakir (2019) Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability. Molecules, 24 (19). pp. 1-15. ISSN 1420-3049 (print); 1420-3049 (online). (Published) https://doi.org/10.3390/molecules24193508 https://doi.org/10.3390/molecules24193508 |
| spellingShingle | TP Chemical technology Aziz, Shujahadeen B. Abdulwahid, Rebar T. Hamsan, Muhamad H. Brza, Mohamad A. Abdullah, Ranjdar M. Kadir, Mohd F. Z. Saifful Kamaluddin, Muzakir Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability |
| title | Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability |
| title_full | Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability |
| title_fullStr | Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability |
| title_full_unstemmed | Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability |
| title_short | Structural, impedance, and EDLC characteristics of Proton conducting chitosan-based polymer blend electrolytes with high electrochemical stability |
| title_sort | structural impedance and edlc characteristics of proton conducting chitosan based polymer blend electrolytes with high electrochemical stability |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/26621/1/Structural%2C%20impedance%2C%20and%20EDLC%20characteristics%20of%20Proton.pdf |
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