Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors

The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is stil...
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Autor*in:	Chuan Jing [verfasserIn] Kai Shu [verfasserIn] Qing Sun [verfasserIn] Jiayu Zheng [verfasserIn] Shuijie Zhang [verfasserIn] Xin Liu [verfasserIn] Kexin Yao [verfasserIn] Xianju Zhou [verfasserIn] Xiaoying Liu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	layered double hydroxide alkali etching alkali stability electrochemical performance supercapacitor

Übergeordnetes Werk:	In: International Journal of Molecular Sciences - MDPI AG, 2003, 23(2022), 19, p 11645
Übergeordnetes Werk:	volume:23 ; year:2022 ; number:19, p 11645

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.3390/ijms231911645

Katalog-ID:	DOAJ084016221

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520			\|a The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties.
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allfields	10.3390/ijms231911645 doi (DE-627)DOAJ084016221 (DE-599)DOAJb375fc9b6edd4b1b8166780bafad1754 DE-627 ger DE-627 rakwb eng QH301-705.5 QD1-999 Chuan Jing verfasserin aut Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties. layered double hydroxide alkali etching alkali stability electrochemical performance supercapacitor Biology (General) Chemistry Kai Shu verfasserin aut Qing Sun verfasserin aut Jiayu Zheng verfasserin aut Shuijie Zhang verfasserin aut Xin Liu verfasserin aut Kexin Yao verfasserin aut Xianju Zhou verfasserin aut Xiaoying Liu verfasserin aut In International Journal of Molecular Sciences MDPI AG, 2003 23(2022), 19, p 11645 (DE-627)316340715 (DE-600)2019364-6 14220067 nnns volume:23 year:2022 number:19, p 11645 https://doi.org/10.3390/ijms231911645 kostenfrei https://doaj.org/article/b375fc9b6edd4b1b8166780bafad1754 kostenfrei https://www.mdpi.com/1422-0067/23/19/11645 kostenfrei https://doaj.org/toc/1661-6596 Journal toc kostenfrei https://doaj.org/toc/1422-0067 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 19, p 11645
spelling	10.3390/ijms231911645 doi (DE-627)DOAJ084016221 (DE-599)DOAJb375fc9b6edd4b1b8166780bafad1754 DE-627 ger DE-627 rakwb eng QH301-705.5 QD1-999 Chuan Jing verfasserin aut Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties. layered double hydroxide alkali etching alkali stability electrochemical performance supercapacitor Biology (General) Chemistry Kai Shu verfasserin aut Qing Sun verfasserin aut Jiayu Zheng verfasserin aut Shuijie Zhang verfasserin aut Xin Liu verfasserin aut Kexin Yao verfasserin aut Xianju Zhou verfasserin aut Xiaoying Liu verfasserin aut In International Journal of Molecular Sciences MDPI AG, 2003 23(2022), 19, p 11645 (DE-627)316340715 (DE-600)2019364-6 14220067 nnns volume:23 year:2022 number:19, p 11645 https://doi.org/10.3390/ijms231911645 kostenfrei https://doaj.org/article/b375fc9b6edd4b1b8166780bafad1754 kostenfrei https://www.mdpi.com/1422-0067/23/19/11645 kostenfrei https://doaj.org/toc/1661-6596 Journal toc kostenfrei https://doaj.org/toc/1422-0067 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 19, p 11645
allfields_unstemmed	10.3390/ijms231911645 doi (DE-627)DOAJ084016221 (DE-599)DOAJb375fc9b6edd4b1b8166780bafad1754 DE-627 ger DE-627 rakwb eng QH301-705.5 QD1-999 Chuan Jing verfasserin aut Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties. layered double hydroxide alkali etching alkali stability electrochemical performance supercapacitor Biology (General) Chemistry Kai Shu verfasserin aut Qing Sun verfasserin aut Jiayu Zheng verfasserin aut Shuijie Zhang verfasserin aut Xin Liu verfasserin aut Kexin Yao verfasserin aut Xianju Zhou verfasserin aut Xiaoying Liu verfasserin aut In International Journal of Molecular Sciences MDPI AG, 2003 23(2022), 19, p 11645 (DE-627)316340715 (DE-600)2019364-6 14220067 nnns volume:23 year:2022 number:19, p 11645 https://doi.org/10.3390/ijms231911645 kostenfrei https://doaj.org/article/b375fc9b6edd4b1b8166780bafad1754 kostenfrei https://www.mdpi.com/1422-0067/23/19/11645 kostenfrei https://doaj.org/toc/1661-6596 Journal toc kostenfrei https://doaj.org/toc/1422-0067 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 19, p 11645
allfieldsGer	10.3390/ijms231911645 doi (DE-627)DOAJ084016221 (DE-599)DOAJb375fc9b6edd4b1b8166780bafad1754 DE-627 ger DE-627 rakwb eng QH301-705.5 QD1-999 Chuan Jing verfasserin aut Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties. layered double hydroxide alkali etching alkali stability electrochemical performance supercapacitor Biology (General) Chemistry Kai Shu verfasserin aut Qing Sun verfasserin aut Jiayu Zheng verfasserin aut Shuijie Zhang verfasserin aut Xin Liu verfasserin aut Kexin Yao verfasserin aut Xianju Zhou verfasserin aut Xiaoying Liu verfasserin aut In International Journal of Molecular Sciences MDPI AG, 2003 23(2022), 19, p 11645 (DE-627)316340715 (DE-600)2019364-6 14220067 nnns volume:23 year:2022 number:19, p 11645 https://doi.org/10.3390/ijms231911645 kostenfrei https://doaj.org/article/b375fc9b6edd4b1b8166780bafad1754 kostenfrei https://www.mdpi.com/1422-0067/23/19/11645 kostenfrei https://doaj.org/toc/1661-6596 Journal toc kostenfrei https://doaj.org/toc/1422-0067 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 19, p 11645
allfieldsSound	10.3390/ijms231911645 doi (DE-627)DOAJ084016221 (DE-599)DOAJb375fc9b6edd4b1b8166780bafad1754 DE-627 ger DE-627 rakwb eng QH301-705.5 QD1-999 Chuan Jing verfasserin aut Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties. layered double hydroxide alkali etching alkali stability electrochemical performance supercapacitor Biology (General) Chemistry Kai Shu verfasserin aut Qing Sun verfasserin aut Jiayu Zheng verfasserin aut Shuijie Zhang verfasserin aut Xin Liu verfasserin aut Kexin Yao verfasserin aut Xianju Zhou verfasserin aut Xiaoying Liu verfasserin aut In International Journal of Molecular Sciences MDPI AG, 2003 23(2022), 19, p 11645 (DE-627)316340715 (DE-600)2019364-6 14220067 nnns volume:23 year:2022 number:19, p 11645 https://doi.org/10.3390/ijms231911645 kostenfrei https://doaj.org/article/b375fc9b6edd4b1b8166780bafad1754 kostenfrei https://www.mdpi.com/1422-0067/23/19/11645 kostenfrei https://doaj.org/toc/1661-6596 Journal toc kostenfrei https://doaj.org/toc/1422-0067 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2022 19, p 11645
language	English
source	In International Journal of Molecular Sciences 23(2022), 19, p 11645 volume:23 year:2022 number:19, p 11645
sourceStr	In International Journal of Molecular Sciences 23(2022), 19, p 11645 volume:23 year:2022 number:19, p 11645
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	layered double hydroxide alkali etching alkali stability electrochemical performance supercapacitor Biology (General) Chemistry
isfreeaccess_bool	true
container_title	International Journal of Molecular Sciences
authorswithroles_txt_mv	Chuan Jing @@aut@@ Kai Shu @@aut@@ Qing Sun @@aut@@ Jiayu Zheng @@aut@@ Shuijie Zhang @@aut@@ Xin Liu @@aut@@ Kexin Yao @@aut@@ Xianju Zhou @@aut@@ Xiaoying Liu @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	316340715
id	DOAJ084016221
language_de	englisch
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callnumber-first	Q - Science
author	Chuan Jing
spellingShingle	Chuan Jing misc QH301-705.5 misc QD1-999 misc layered double hydroxide misc alkali etching misc alkali stability misc electrochemical performance misc supercapacitor misc Biology (General) misc Chemistry Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors
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topic_title	QH301-705.5 QD1-999 Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors layered double hydroxide alkali etching alkali stability electrochemical performance supercapacitor
topic	misc QH301-705.5 misc QD1-999 misc layered double hydroxide misc alkali etching misc alkali stability misc electrochemical performance misc supercapacitor misc Biology (General) misc Chemistry
topic_unstemmed	misc QH301-705.5 misc QD1-999 misc layered double hydroxide misc alkali etching misc alkali stability misc electrochemical performance misc supercapacitor misc Biology (General) misc Chemistry
topic_browse	misc QH301-705.5 misc QD1-999 misc layered double hydroxide misc alkali etching misc alkali stability misc electrochemical performance misc supercapacitor misc Biology (General) misc Chemistry
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title	Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors
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title_full	Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors
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journal	International Journal of Molecular Sciences
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author_browse	Chuan Jing Kai Shu Qing Sun Jiayu Zheng Shuijie Zhang Xin Liu Kexin Yao Xianju Zhou Xiaoying Liu
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author-letter	Chuan Jing
doi_str_mv	10.3390/ijms231911645
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title_sort	atomic scale optimization strategy of al-based layered double hydroxide for alkali stability and supercapacitors
callnumber	QH301-705.5
title_auth	Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors
abstract	The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties.
abstractGer	The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties.
abstract_unstemmed	The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub< and Ni<sub<2</sub<Co<sub<1</sub<Al LDH exhibit an outstanding alkali stability, and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub<. Ni<sub<2</sub<Co<sub<1</sub<S<sub<4</sub< showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni<sub<1</sub<Co<sub<2</sub<S<sub<4</sub<, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties.
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title_short	Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors
url	https://doi.org/10.3390/ijms231911645 https://doaj.org/article/b375fc9b6edd4b1b8166780bafad1754 https://www.mdpi.com/1422-0067/23/19/11645 https://doaj.org/toc/1661-6596 https://doaj.org/toc/1422-0067
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