Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices
The interest in aqueous energy storage devices is surging due to their exceptional safety profile. However, in aqueous energy storage systems, interfacial side reactions, predominantly attributed to the oxygen evolution reaction (OER), result in significant self-discharge, which is concomitant with...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | , , , , , , , , , |
| Published: |
2025
|
| Subjects: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1852022753291403264 |
|---|---|
| author | Jin Li (119007) |
| author2 | Shuo Sun (626584) Hao Huang (111923) Teng Zhai (1459396) Yanchen Liu (3691888) Minghui Gu (803521) Hongye Yang (11624399) Mingqing Sun (18843015) Tianyi Kou (1530160) Shuang Li (146392) Hui Xia (133168) |
| author2_role | author author author author author author author author author author |
| author_facet | Jin Li (119007) Shuo Sun (626584) Hao Huang (111923) Teng Zhai (1459396) Yanchen Liu (3691888) Minghui Gu (803521) Hongye Yang (11624399) Mingqing Sun (18843015) Tianyi Kou (1530160) Shuang Li (146392) Hui Xia (133168) |
| author_role | author |
| dc.creator.none.fl_str_mv | Jin Li (119007) Shuo Sun (626584) Hao Huang (111923) Teng Zhai (1459396) Yanchen Liu (3691888) Minghui Gu (803521) Hongye Yang (11624399) Mingqing Sun (18843015) Tianyi Kou (1530160) Shuang Li (146392) Hui Xia (133168) |
| dc.date.none.fl_str_mv | 2025-02-13T06:04:55Z |
| dc.identifier.none.fl_str_mv | 10.1021/jacs.4c16996.s002 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/media/Ferrocyanide_Skin_-Mediated_Anticatalysis_Mitigating_Self-Discharge_in_Aqueous_Electrochemical_Devices/28406744 |
| dc.rights.none.fl_str_mv | CC BY-NC 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Medicine Immunology Infectious Diseases Space Science Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified undesired phase transition transition metal compounds reaction pathway presents oxygen evolution reaction interfacial side reactions exceptional safety profile broadly applicable paradigm aqueous electrochemical devices significant energy barrier fully charged electrode oh )< sub nickel cobalt oxide 2 </ sub remarkable voltage retention oer ), result significant self modified electrode vanadium oxide manganese oxide tmc materials taking nio surging due predominantly attributed n – mitigating self idling within idling process hydroxyl ions findings highlight effectively shielding bonding process active sites 1 week |
| dc.title.none.fl_str_mv | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices |
| dc.type.none.fl_str_mv | Dataset Media info:eu-repo/semantics/publishedVersion dataset |
| description | The interest in aqueous energy storage devices is surging due to their exceptional safety profile. However, in aqueous energy storage systems, interfacial side reactions, predominantly attributed to the oxygen evolution reaction (OER), result in significant self-discharge, which is concomitant with the deterioration of both voltage and capacity. Herein, we propose the construction of a ferrocyanide “skin” on transition metal compounds (TMCs) to mitigate this issue. This engineered “skin” creates Fe–CN terminations, initiating a new reaction pathway featured by the bonding process of N–O and N–H bonds. This reaction pathway presents a significant energy barrier, effectively shielding the active sites for the OER from H<sub>2</sub>O molecules and hydroxyl ions. Taking NiO as an example, the ferrocyanide “skin” effectively suppresses the undesired phase transition from NiOOH to Ni(OH)<sub>2</sub> during the idling process of a fully charged electrode, enabling the as-modified electrode to achieve a remarkable voltage retention of 80.0% after 1 week of idling within a device. Furthermore, this concept demonstrates extensive applicability, extending to a range of TMC materials, including but not limited to manganese oxide, vanadium oxide, and nickel cobalt oxide. These findings highlight the efficacy of the ferrocyanide “skin” design strategy as a broadly applicable paradigm for suppressing H<sub>2</sub>O-induced undesirable phase transitions in aqueous energy storage devices. |
| eu_rights_str_mv | openAccess |
| id | Manara_2783efed83c19e2e5bdf6d50aa6c1027 |
| identifier_str_mv | 10.1021/jacs.4c16996.s002 |
| network_acronym_str | Manara |
| network_name_str | ManaraRepo |
| oai_identifier_str | oai:figshare.com:article/28406744 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY-NC 4.0 |
| spelling | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical DevicesJin Li (119007)Shuo Sun (626584)Hao Huang (111923)Teng Zhai (1459396)Yanchen Liu (3691888)Minghui Gu (803521)Hongye Yang (11624399)Mingqing Sun (18843015)Tianyi Kou (1530160)Shuang Li (146392)Hui Xia (133168)MedicineImmunologyInfectious DiseasesSpace ScienceBiological Sciences not elsewhere classifiedChemical Sciences not elsewhere classifiedundesired phase transitiontransition metal compoundsreaction pathway presentsoxygen evolution reactioninterfacial side reactionsexceptional safety profilebroadly applicable paradigmaqueous electrochemical devicessignificant energy barrierfully charged electrodeoh )< subnickel cobalt oxide2 </ subremarkable voltage retentionoer ), resultsignificant selfmodified electrodevanadium oxidemanganese oxidetmc materialstaking niosurging duepredominantly attributedn –mitigating selfidling withinidling processhydroxyl ionsfindings highlighteffectively shieldingbonding processactive sites1 weekThe interest in aqueous energy storage devices is surging due to their exceptional safety profile. However, in aqueous energy storage systems, interfacial side reactions, predominantly attributed to the oxygen evolution reaction (OER), result in significant self-discharge, which is concomitant with the deterioration of both voltage and capacity. Herein, we propose the construction of a ferrocyanide “skin” on transition metal compounds (TMCs) to mitigate this issue. This engineered “skin” creates Fe–CN terminations, initiating a new reaction pathway featured by the bonding process of N–O and N–H bonds. This reaction pathway presents a significant energy barrier, effectively shielding the active sites for the OER from H<sub>2</sub>O molecules and hydroxyl ions. Taking NiO as an example, the ferrocyanide “skin” effectively suppresses the undesired phase transition from NiOOH to Ni(OH)<sub>2</sub> during the idling process of a fully charged electrode, enabling the as-modified electrode to achieve a remarkable voltage retention of 80.0% after 1 week of idling within a device. Furthermore, this concept demonstrates extensive applicability, extending to a range of TMC materials, including but not limited to manganese oxide, vanadium oxide, and nickel cobalt oxide. These findings highlight the efficacy of the ferrocyanide “skin” design strategy as a broadly applicable paradigm for suppressing H<sub>2</sub>O-induced undesirable phase transitions in aqueous energy storage devices.2025-02-13T06:04:55ZDatasetMediainfo:eu-repo/semantics/publishedVersiondataset10.1021/jacs.4c16996.s002https://figshare.com/articles/media/Ferrocyanide_Skin_-Mediated_Anticatalysis_Mitigating_Self-Discharge_in_Aqueous_Electrochemical_Devices/28406744CC BY-NC 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/284067442025-02-13T06:04:55Z |
| spellingShingle | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices Jin Li (119007) Medicine Immunology Infectious Diseases Space Science Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified undesired phase transition transition metal compounds reaction pathway presents oxygen evolution reaction interfacial side reactions exceptional safety profile broadly applicable paradigm aqueous electrochemical devices significant energy barrier fully charged electrode oh )< sub nickel cobalt oxide 2 </ sub remarkable voltage retention oer ), result significant self modified electrode vanadium oxide manganese oxide tmc materials taking nio surging due predominantly attributed n – mitigating self idling within idling process hydroxyl ions findings highlight effectively shielding bonding process active sites 1 week |
| status_str | publishedVersion |
| title | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices |
| title_full | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices |
| title_fullStr | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices |
| title_full_unstemmed | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices |
| title_short | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices |
| title_sort | Ferrocyanide “Skin”-Mediated Anticatalysis: Mitigating Self-Discharge in Aqueous Electrochemical Devices |
| topic | Medicine Immunology Infectious Diseases Space Science Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified undesired phase transition transition metal compounds reaction pathway presents oxygen evolution reaction interfacial side reactions exceptional safety profile broadly applicable paradigm aqueous electrochemical devices significant energy barrier fully charged electrode oh )< sub nickel cobalt oxide 2 </ sub remarkable voltage retention oer ), result significant self modified electrode vanadium oxide manganese oxide tmc materials taking nio surging due predominantly attributed n – mitigating self idling within idling process hydroxyl ions findings highlight effectively shielding bonding process active sites 1 week |