The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells
Thermally driven electrochemical cells (thermocells) are able to convert thermal gradient applied across redox electrolyte into electricity. The performance of the thermocells heavily depends on the magnitude and integrity of the applied thermal gradient. Herein, we study the iodide/triiodide (I-/I3...
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| Format: | Article |
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Penerbit Universiti Kebangsaan Malaysia
2018
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| author | Hasan, Syed Waqar Said, Suhana Mohd Shuhaimi, Ahmad Jaffery, Hasan Abbas Sabri, Mohd Faizul Mohd |
| author_facet | Hasan, Syed Waqar Said, Suhana Mohd Shuhaimi, Ahmad Jaffery, Hasan Abbas Sabri, Mohd Faizul Mohd |
| author_sort | Hasan, Syed Waqar |
| collection | UM |
| description | Thermally driven electrochemical cells (thermocells) are able to convert thermal gradient applied across redox electrolyte into electricity. The performance of the thermocells heavily depends on the magnitude and integrity of the applied thermal gradient. Herein, we study the iodide/triiodide (I-/I3-) based 1-Ethyl-3-methyl-imidazolium Ethylsulfate ([EMIM][EtSO4]) solutions in a thermocell. In order to comprehend the role of fluidity of the electrolyte, we prepared set of solutions by diluting [EMIM][EtSO4] with 0.002, 0.004, and 0.010 mol of Acetonitrile (ACN). We realized a significant improvement in ionic conductivity (σ) and electrochemical Seebeck (Se) of diluted electrolytes as compared to base [EMIM][EtSO4] owing to the solvent organization. However, the infra-red thermography indicated faster heat flow in ACN-diluted-[EMIM] [EtSO4] as compared to the base [EMIM][EtSO4]. Therefore, the maximum power density of base [EMIM][EtSO4] (i.e. 118.5 μW.m-2) is 3 times higher than the ACN-diluted-[EMIM][EtSO4] (i.e. 36.1 μW.m-2) because of the lower thermal conductivity. Hence this paper illustrates the compromise between the fast mass/flow transfer due to fluidity (of diluted samples) and the low thermal conductivity (of the pure [EMIM][EtSO4]). |
| first_indexed | 2024-03-06T05:55:32Z |
| format | Article |
| id | um.eprints-21930 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:55:32Z |
| publishDate | 2018 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | um.eprints-219302019-08-08T08:46:14Z http://eprints.um.edu.my/21930/ The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells Hasan, Syed Waqar Said, Suhana Mohd Shuhaimi, Ahmad Jaffery, Hasan Abbas Sabri, Mohd Faizul Mohd TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering Thermally driven electrochemical cells (thermocells) are able to convert thermal gradient applied across redox electrolyte into electricity. The performance of the thermocells heavily depends on the magnitude and integrity of the applied thermal gradient. Herein, we study the iodide/triiodide (I-/I3-) based 1-Ethyl-3-methyl-imidazolium Ethylsulfate ([EMIM][EtSO4]) solutions in a thermocell. In order to comprehend the role of fluidity of the electrolyte, we prepared set of solutions by diluting [EMIM][EtSO4] with 0.002, 0.004, and 0.010 mol of Acetonitrile (ACN). We realized a significant improvement in ionic conductivity (σ) and electrochemical Seebeck (Se) of diluted electrolytes as compared to base [EMIM][EtSO4] owing to the solvent organization. However, the infra-red thermography indicated faster heat flow in ACN-diluted-[EMIM] [EtSO4] as compared to the base [EMIM][EtSO4]. Therefore, the maximum power density of base [EMIM][EtSO4] (i.e. 118.5 μW.m-2) is 3 times higher than the ACN-diluted-[EMIM][EtSO4] (i.e. 36.1 μW.m-2) because of the lower thermal conductivity. Hence this paper illustrates the compromise between the fast mass/flow transfer due to fluidity (of diluted samples) and the low thermal conductivity (of the pure [EMIM][EtSO4]). Penerbit Universiti Kebangsaan Malaysia 2018 Article PeerReviewed Hasan, Syed Waqar and Said, Suhana Mohd and Shuhaimi, Ahmad and Jaffery, Hasan Abbas and Sabri, Mohd Faizul Mohd (2018) The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells. Sains Malaysiana, 47 (2). pp. 403-408. ISSN 0126-6039, http://www.ukm.my/jsm/pdf_files/SM-PDF-47-2-2018/UKM%20SAINSMalaysiana%2047(02)Feb%202018%2023.pdf |
| spellingShingle | TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering Hasan, Syed Waqar Said, Suhana Mohd Shuhaimi, Ahmad Jaffery, Hasan Abbas Sabri, Mohd Faizul Mohd The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells |
| title | The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells |
| title_full | The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells |
| title_fullStr | The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells |
| title_full_unstemmed | The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells |
| title_short | The role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells |
| title_sort | role of electrolyte fluidity on the power generation characteristics of thermally driven electrochemical cells |
| topic | TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering |
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