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Role of Ligand-to-Metal Charge Transfer in O3-Type NaFeO2-NaNiO2Solid Solution for Enhanced Electrochemical Properties
https://aist.repo.nii.ac.jp/records/2001778
https://aist.repo.nii.ac.jp/records/2001778c411ba8b-456b-41ae-8a29-de319038a78f
| Item type | Research Data (v9)(1) | |||||||||||||||
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| PubDate | 2014-01-01 | |||||||||||||||
| Data name | ||||||||||||||||
| Title | Role of Ligand-to-Metal Charge Transfer in O3-Type NaFeO2-NaNiO2Solid Solution for Enhanced Electrochemical Properties | |||||||||||||||
| Language | en | |||||||||||||||
| Description of data | ||||||||||||||||
| Description Type | Abstract | |||||||||||||||
| Description | Na-ion batteries have been the subjects of intensive studies forgrid-scale energy storage recently. O3-type NaFeO2 is a promising candidatefor the Na-ion cathode materials, though the irreversibility during Na-ionextraction/insertion seriously hinders its practical application. The presentwork demonstrates that partial replacement of Fe in O3-NaFeO2 with Ni leadsto the significant improvement of the electrochemical properties. The 57FeMössbauer and X-ray absorption spectra show that O3-type NaFeO2−NaNiO2solid solution forms hybridized frontier orbital of a Fe−O−Ni bond via ligandto-metal charge transfer, which plays a dominant role in the charge−dischargeprocess. The resulting O3-NaFe0.3Ni0.7O2 delivers an initial discharge capacityof 135 mA·h·g−1, most of which is in a high-voltage region of 2.5−3.8 V, with ahigh initial Coulombic efficiency of 93%, and shows enhanced cycle stability. | |||||||||||||||
| Language | en | |||||||||||||||
| Author (Creator) name |
Xianfen Wang
× Xianfen Wang
× Guandong Liu
× 岩尾 樹実
× 大久保将史
× 山田淳夫
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| Access Rights | ||||||||||||||||
| Access Rights | open access | |||||||||||||||
| Access Rights URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||
| APC | ||||||||||||||||
| APC | Not required | |||||||||||||||
| Rights Holder | ||||||||||||||||
| Right Holder Name | Xianfen Wang | |||||||||||||||
| Language | en | |||||||||||||||
| Publisher | ||||||||||||||||
| Publisher | AMER CHEMICAL SOC | |||||||||||||||
| Language | en | |||||||||||||||
| Date | ||||||||||||||||
| Date | 2014-01-01 | |||||||||||||||
| Date Type | Issued | |||||||||||||||
| Language | ||||||||||||||||
| Language | eng | |||||||||||||||
| Resource Type | ||||||||||||||||
| Resource Type Identifier | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||
| Resource Type | journal article | |||||||||||||||
| Identifier | ||||||||||||||||
| Identifier | 10.1021/jp411382r | |||||||||||||||
| Identifier Type | DOI | |||||||||||||||
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| Relation Type | isVersionOf | |||||||||||||||
| Identifier Type | URI | |||||||||||||||
| Related Identifier | http://pubs.acs.org/doi/abs/10.1021/jp411382r | |||||||||||||||
| Language | ja | |||||||||||||||
| Related Title | 関連 URI | |||||||||||||||
| Source Title | ||||||||||||||||
| Source Title | JOURNAL OF PHYSICAL CHEMISTRY C | |||||||||||||||
| Language | en | |||||||||||||||
| Volume Number | ||||||||||||||||
| Volume | 118 | |||||||||||||||
| Issue Number | ||||||||||||||||
| Issue | 6 | |||||||||||||||
| Page Start | ||||||||||||||||
| Start Page | 2970 | |||||||||||||||
| Page End | ||||||||||||||||
| End Page | 2976 | |||||||||||||||
