Inhibiting Vanadium Dissolution of Potassium Vanadate for Stable Transparent Electrochromic Displays
Vanadium oxides are highly valued as electrochromic materials because of their multicolor capabilities. However, their practical applications have been limited due to challenges such as the dissolution of vanadate into aqueous electrolytes, leading to poor long‐term stability. Herein, a solution is...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-09-01
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| Series: | Small Science |
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| Online Access: | https://doi.org/10.1002/smsc.202300046 |
| _version_ | 1797674059167694848 |
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| author | Bin Wang Feifei Zhao Wu Zhang Changyu Li Kun Hu Brett N. Carnio Linhua Liu William W. Yu Abdulhakem Y. Elezzabi Haizeng Li |
| author_facet | Bin Wang Feifei Zhao Wu Zhang Changyu Li Kun Hu Brett N. Carnio Linhua Liu William W. Yu Abdulhakem Y. Elezzabi Haizeng Li |
| author_sort | Bin Wang |
| collection | DOAJ |
| description | Vanadium oxides are highly valued as electrochromic materials because of their multicolor capabilities. However, their practical applications have been limited due to challenges such as the dissolution of vanadate into aqueous electrolytes, leading to poor long‐term stability. Herein, a solution is proposed to the vanadate dissolution issue by utilizing a hybrid electrolyte consisting of tetraethylene glycol dimethyl ether (TEGDME) and water. This electrolyte has the unique ability to form a robust cathode electrolyte interface layer on vanadium oxide electrodes. As a proof of concept, zinc‐anode‐based multicolor transparent electrochromic displays are prepared using layered potassium vanadate (K2V6O16·1.5H2O, KVO) with a TEGDME–water hybrid electrolyte. By soaking the KVO electrode in the hybrid electrolyte, it is demonstrated that KVO has remarkable stability against dissolution. Furthermore, it is shown that KVO has superior electrochromic performance compared to sodium vanadate (NaV3O8·1.5H2O, SVO), due to the wide KVO interlayer spacing. Given the enhanced performance of this hybrid electrolyte and KVO cathode material, a zinc‐anode‐based electrochromic display prototype is shown to exhibit compelling performance. As such, this work is expected to be a significant catalyst for accelerating the development of vanadate‐based electrochromic displays. |
| first_indexed | 2024-03-11T21:53:36Z |
| format | Article |
| id | doaj.art-5136acde18bb45d7b1ef48cf7077b7b6 |
| institution | Directory Open Access Journal |
| issn | 2688-4046 |
| language | English |
| last_indexed | 2024-03-11T21:53:36Z |
| publishDate | 2023-09-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Small Science |
| spelling | doaj.art-5136acde18bb45d7b1ef48cf7077b7b62023-09-26T05:35:39ZengWiley-VCHSmall Science2688-40462023-09-0139n/an/a10.1002/smsc.202300046Inhibiting Vanadium Dissolution of Potassium Vanadate for Stable Transparent Electrochromic DisplaysBin Wang0Feifei Zhao1Wu Zhang2Changyu Li3Kun Hu4Brett N. Carnio5Linhua Liu6William W. Yu7Abdulhakem Y. Elezzabi8Haizeng Li9Institute of Frontier and Interdisciplinary Science Shandong University Qingdao Shandong 266237 ChinaInstitute of Frontier and Interdisciplinary Science Shandong University Qingdao Shandong 266237 ChinaUltrafast Optics and Nanophotonics Laboratory Department of Electrical and Computer Engineering University of Alberta Edmonton Alberta T6G 2V4 CanadaInstitute of Frontier and Interdisciplinary Science Shandong University Qingdao Shandong 266237 ChinaInstitute of Frontier and Interdisciplinary Science Shandong University Qingdao Shandong 266237 ChinaUltrafast Optics and Nanophotonics Laboratory Department of Electrical and Computer Engineering University of Alberta Edmonton Alberta T6G 2V4 CanadaInstitute of Frontier and Interdisciplinary Science Shandong University Qingdao Shandong 266237 ChinaSchool of Chemistry & Chemical Engineering Shandong University Jinan Shandong 250100 ChinaUltrafast Optics and Nanophotonics Laboratory Department of Electrical and Computer Engineering University of Alberta Edmonton Alberta T6G 2V4 CanadaInstitute of Frontier and Interdisciplinary Science Shandong University Qingdao Shandong 266237 ChinaVanadium oxides are highly valued as electrochromic materials because of their multicolor capabilities. However, their practical applications have been limited due to challenges such as the dissolution of vanadate into aqueous electrolytes, leading to poor long‐term stability. Herein, a solution is proposed to the vanadate dissolution issue by utilizing a hybrid electrolyte consisting of tetraethylene glycol dimethyl ether (TEGDME) and water. This electrolyte has the unique ability to form a robust cathode electrolyte interface layer on vanadium oxide electrodes. As a proof of concept, zinc‐anode‐based multicolor transparent electrochromic displays are prepared using layered potassium vanadate (K2V6O16·1.5H2O, KVO) with a TEGDME–water hybrid electrolyte. By soaking the KVO electrode in the hybrid electrolyte, it is demonstrated that KVO has remarkable stability against dissolution. Furthermore, it is shown that KVO has superior electrochromic performance compared to sodium vanadate (NaV3O8·1.5H2O, SVO), due to the wide KVO interlayer spacing. Given the enhanced performance of this hybrid electrolyte and KVO cathode material, a zinc‐anode‐based electrochromic display prototype is shown to exhibit compelling performance. As such, this work is expected to be a significant catalyst for accelerating the development of vanadate‐based electrochromic displays.https://doi.org/10.1002/smsc.202300046dead Zn2+ siteshybrid electrolytespotassium vanadium oxidetransparent electrochromic displaysvanadium dissolution |
| spellingShingle | Bin Wang Feifei Zhao Wu Zhang Changyu Li Kun Hu Brett N. Carnio Linhua Liu William W. Yu Abdulhakem Y. Elezzabi Haizeng Li Inhibiting Vanadium Dissolution of Potassium Vanadate for Stable Transparent Electrochromic Displays Small Science dead Zn2+ sites hybrid electrolytes potassium vanadium oxide transparent electrochromic displays vanadium dissolution |
| title | Inhibiting Vanadium Dissolution of Potassium Vanadate for Stable Transparent Electrochromic Displays |
| title_full | Inhibiting Vanadium Dissolution of Potassium Vanadate for Stable Transparent Electrochromic Displays |
| title_fullStr | Inhibiting Vanadium Dissolution of Potassium Vanadate for Stable Transparent Electrochromic Displays |
| title_full_unstemmed | Inhibiting Vanadium Dissolution of Potassium Vanadate for Stable Transparent Electrochromic Displays |
| title_short | Inhibiting Vanadium Dissolution of Potassium Vanadate for Stable Transparent Electrochromic Displays |
| title_sort | inhibiting vanadium dissolution of potassium vanadate for stable transparent electrochromic displays |
| topic | dead Zn2+ sites hybrid electrolytes potassium vanadium oxide transparent electrochromic displays vanadium dissolution |
| url | https://doi.org/10.1002/smsc.202300046 |
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