Chalcogenide solution-mediated activation protocol for scalable and ultrafast synthesis of single-crystalline 1-D copper sulfide for supercapacitor
Traditional synthetic routes for transition metal sulfides typically involve solution and thermal-based processes to exploit their favorable pseudo-capacitive properties. However, there is a practical need to develop alternative processes to fabricate metal sulfide electrodes because of the time-con...
| Autors principals: | , , , , , , , , , , , , , |
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| Format: | Journal article |
| Idioma: | English |
| Publicat: |
Royal Society of Chemistry
2019
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| _version_ | 1826290779736244224 |
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| author | Hong, J Kim, B Yang, S Jang, A Lee, Y Pak, S Lee, S Cho, Y Kang, D Shin, H Hong, J Morris, S Cha, S Sohn, J Kim, J |
| author_facet | Hong, J Kim, B Yang, S Jang, A Lee, Y Pak, S Lee, S Cho, Y Kang, D Shin, H Hong, J Morris, S Cha, S Sohn, J Kim, J |
| author_sort | Hong, J |
| collection | OXFORD |
| description | Traditional synthetic routes for transition metal sulfides typically involve solution and thermal-based processes to exploit their favorable pseudo-capacitive properties. However, there is a practical need to develop alternative processes to fabricate metal sulfide electrodes because of the time-consuming processes (>12 h), additional heat-treatment to active reactants, relatively high post-heat-treatment temperature (200–400 °C) and non-scalable nature of existing synthetic routes. Herein, utilizing a solution-based sulfur precursor, one-dimensional single-crystalline Cu2S nanostructures have been successfully prepared via a solution-based direct synthesis process within 10 min at room temperature without the need for thermal treatment steps. The fabricated electrode exhibits a capacitance of 750 mF cm−2 at a current density of 2 mA cm−2. Moreover, the rate capacitance is maintained at about 82.3% as the current density is increased to 40 mA cm−2, and the capacity retains 90.5% of the initial value after 20 000 cycles. Importantly, as this method involves a solution-based formulation it is compatible with roll-to-roll processes, which is promising for mass and scalable production of the electrodes. The synthetic method ensures a facile and efficient approach to fabricating scalable one-dimensional single crystalline Cu2S nanostructures, highlighting the uniqueness of the solution-based sulfur activation method. |
| first_indexed | 2024-03-07T02:49:25Z |
| format | Journal article |
| id | oxford-uuid:ad273ce5-870d-4081-8b64-16250920acc3 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:49:25Z |
| publishDate | 2019 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | oxford-uuid:ad273ce5-870d-4081-8b64-16250920acc32022-03-27T03:33:37ZChalcogenide solution-mediated activation protocol for scalable and ultrafast synthesis of single-crystalline 1-D copper sulfide for supercapacitorJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ad273ce5-870d-4081-8b64-16250920acc3EnglishSymplectic Elements at OxfordRoyal Society of Chemistry2019Hong, JKim, BYang, SJang, ALee, YPak, SLee, SCho, YKang, DShin, HHong, JMorris, SCha, SSohn, JKim, JTraditional synthetic routes for transition metal sulfides typically involve solution and thermal-based processes to exploit their favorable pseudo-capacitive properties. However, there is a practical need to develop alternative processes to fabricate metal sulfide electrodes because of the time-consuming processes (>12 h), additional heat-treatment to active reactants, relatively high post-heat-treatment temperature (200–400 °C) and non-scalable nature of existing synthetic routes. Herein, utilizing a solution-based sulfur precursor, one-dimensional single-crystalline Cu2S nanostructures have been successfully prepared via a solution-based direct synthesis process within 10 min at room temperature without the need for thermal treatment steps. The fabricated electrode exhibits a capacitance of 750 mF cm−2 at a current density of 2 mA cm−2. Moreover, the rate capacitance is maintained at about 82.3% as the current density is increased to 40 mA cm−2, and the capacity retains 90.5% of the initial value after 20 000 cycles. Importantly, as this method involves a solution-based formulation it is compatible with roll-to-roll processes, which is promising for mass and scalable production of the electrodes. The synthetic method ensures a facile and efficient approach to fabricating scalable one-dimensional single crystalline Cu2S nanostructures, highlighting the uniqueness of the solution-based sulfur activation method. |
| spellingShingle | Hong, J Kim, B Yang, S Jang, A Lee, Y Pak, S Lee, S Cho, Y Kang, D Shin, H Hong, J Morris, S Cha, S Sohn, J Kim, J Chalcogenide solution-mediated activation protocol for scalable and ultrafast synthesis of single-crystalline 1-D copper sulfide for supercapacitor |
| title | Chalcogenide solution-mediated activation protocol for scalable and ultrafast synthesis of single-crystalline 1-D copper sulfide for supercapacitor |
| title_full | Chalcogenide solution-mediated activation protocol for scalable and ultrafast synthesis of single-crystalline 1-D copper sulfide for supercapacitor |
| title_fullStr | Chalcogenide solution-mediated activation protocol for scalable and ultrafast synthesis of single-crystalline 1-D copper sulfide for supercapacitor |
| title_full_unstemmed | Chalcogenide solution-mediated activation protocol for scalable and ultrafast synthesis of single-crystalline 1-D copper sulfide for supercapacitor |
| title_short | Chalcogenide solution-mediated activation protocol for scalable and ultrafast synthesis of single-crystalline 1-D copper sulfide for supercapacitor |
| title_sort | chalcogenide solution mediated activation protocol for scalable and ultrafast synthesis of single crystalline 1 d copper sulfide for supercapacitor |
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