Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell
The performance of a direct borohydride fuel cell (DBFC) based on a polyacrylamide (PAAm) gel polymer electrolyte system is investigated at different electrolyte concentrations. The DBFC, constructed using 2M sodium borohydride (NaBH4) as the fuel and potassium hydroxide (KOH) solution gelled with P...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Published: |
Wiley
2012
|
| Subjects: |
| _version_ | 1825719383511531520 |
|---|---|
| author | Ng, P.L. Mohamad, A.A. Ahmad, Z.A. Basirun, Wan Jefrey Alias, Y. Jamaludin, A. |
| author_facet | Ng, P.L. Mohamad, A.A. Ahmad, Z.A. Basirun, Wan Jefrey Alias, Y. Jamaludin, A. |
| author_sort | Ng, P.L. |
| collection | UM |
| description | The performance of a direct borohydride fuel cell (DBFC) based on a polyacrylamide (PAAm) gel polymer electrolyte system is investigated at different electrolyte concentrations. The DBFC, constructed using 2M sodium borohydride (NaBH4) as the fuel and potassium hydroxide (KOH) solution gelled with PAAm as the electrolytes yield the highest electrical conductivity of 2.73 x 10-1 S cm-1 at 6M KOH. The optimized composition, PAAm + 2M NaBH4 + 6M KOH, and the selected composition, PAAm + 2M NaBH4 + 3M KOH are then used in preparing the cells. Open-circuit voltages for fuel cells is about 0.85-0.92 V, and the discharge characteristic produce discharge capacities of about 257.12-273.12 mAh cm-2 for cells with PAAm-6M KOH. Current-voltage and current density-power density plots and internal resistance for both cells are almost the same. (c) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
| first_indexed | 2024-03-06T05:18:53Z |
| format | Article |
| id | um.eprints-7526 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:18:53Z |
| publishDate | 2012 |
| publisher | Wiley |
| record_format | dspace |
| spelling | um.eprints-75262019-01-31T07:59:41Z http://eprints.um.edu.my/7526/ Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell Ng, P.L. Mohamad, A.A. Ahmad, Z.A. Basirun, Wan Jefrey Alias, Y. Jamaludin, A. QD Chemistry The performance of a direct borohydride fuel cell (DBFC) based on a polyacrylamide (PAAm) gel polymer electrolyte system is investigated at different electrolyte concentrations. The DBFC, constructed using 2M sodium borohydride (NaBH4) as the fuel and potassium hydroxide (KOH) solution gelled with PAAm as the electrolytes yield the highest electrical conductivity of 2.73 x 10-1 S cm-1 at 6M KOH. The optimized composition, PAAm + 2M NaBH4 + 6M KOH, and the selected composition, PAAm + 2M NaBH4 + 3M KOH are then used in preparing the cells. Open-circuit voltages for fuel cells is about 0.85-0.92 V, and the discharge characteristic produce discharge capacities of about 257.12-273.12 mAh cm-2 for cells with PAAm-6M KOH. Current-voltage and current density-power density plots and internal resistance for both cells are almost the same. (c) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 Wiley 2012 Article PeerReviewed Ng, P.L. and Mohamad, A.A. and Ahmad, Z.A. and Basirun, Wan Jefrey and Alias, Y. and Jamaludin, A. (2012) Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell. Journal of Applied Polymer Science, 123 (5). pp. 2662-2666. ISSN 0021-8995, DOI https://doi.org/10.1002/app.34666 <https://doi.org/10.1002/app.34666>. http://onlinelibrary.wiley.com/doi/10.1002/app.34666/abstract 10.1002/app.34666 |
| spellingShingle | QD Chemistry Ng, P.L. Mohamad, A.A. Ahmad, Z.A. Basirun, Wan Jefrey Alias, Y. Jamaludin, A. Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell |
| title | Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell |
| title_full | Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell |
| title_fullStr | Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell |
| title_full_unstemmed | Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell |
| title_short | Effect of KOH concentration in the gel polymer electrolyte for direct borohydride fuel cell |
| title_sort | effect of koh concentration in the gel polymer electrolyte for direct borohydride fuel cell |
| topic | QD Chemistry |
| work_keys_str_mv | AT ngpl effectofkohconcentrationinthegelpolymerelectrolytefordirectborohydridefuelcell AT mohamadaa effectofkohconcentrationinthegelpolymerelectrolytefordirectborohydridefuelcell AT ahmadza effectofkohconcentrationinthegelpolymerelectrolytefordirectborohydridefuelcell AT basirunwanjefrey effectofkohconcentrationinthegelpolymerelectrolytefordirectborohydridefuelcell AT aliasy effectofkohconcentrationinthegelpolymerelectrolytefordirectborohydridefuelcell AT jamaludina effectofkohconcentrationinthegelpolymerelectrolytefordirectborohydridefuelcell |