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Li Y, Guo R, Sun Y, Wang Y, Liu W, Pei H, Zhao H, Zhang J, Ye D, Xie J, Kong J. Synthesis of CoS
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Nanoparticles/Nitrogen‐Doped Graphitic Carbon/Carbon Nanotubes Composite as an Advanced Anode for Sodium‐Ion Batteries. ChemElectroChem 2020. [DOI: 10.1002/celc.201902053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yong Li
- Department of ChemistryFudan University Shanghai 200433 China
- State Key Laboratory of Space Power-Sources TechnologyShanghai Institute of Space Power Sources Shanghai 200245 China
| | - Rui Guo
- State Key Laboratory of Space Power-Sources TechnologyShanghai Institute of Space Power Sources Shanghai 200245 China
| | - Yanting Sun
- State Key Laboratory of Space Power-Sources TechnologyShanghai Institute of Space Power Sources Shanghai 200245 China
| | - Yong Wang
- State Key Laboratory of Space Power-Sources TechnologyShanghai Institute of Space Power Sources Shanghai 200245 China
| | - Wen Liu
- State Key Laboratory of Space Power-Sources TechnologyShanghai Institute of Space Power Sources Shanghai 200245 China
| | - Haijuan Pei
- State Key Laboratory of Space Power-Sources TechnologyShanghai Institute of Space Power Sources Shanghai 200245 China
| | - Hongbin Zhao
- Institute for Sustainable Energy/College of SciencesShanghai University Shanghai 200444 China
| | - Jiujun Zhang
- Institute for Sustainable Energy/College of SciencesShanghai University Shanghai 200444 China
| | - Daixin Ye
- Institute for Sustainable Energy/College of SciencesShanghai University Shanghai 200444 China
| | - Jingying Xie
- State Key Laboratory of Space Power-Sources TechnologyShanghai Institute of Space Power Sources Shanghai 200245 China
| | - Jilie Kong
- Department of ChemistryFudan University Shanghai 200433 China
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Chen X, Qiu J, Wang Y, Huang F, Peng J, Li J, Zhai M. Cactus-like iron diphosphide@carbon nanotubes composites as advanced anode materials for lithium-ion batteries. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.10.186] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zeng P, Zhao Y, Lin Y, Wang X, Li J, Wang W, Fang Z. Enhancement of Electrochemical Performance by the Oxygen Vacancies in Hematite as Anode Material for Lithium-Ion Batteries. NANOSCALE RESEARCH LETTERS 2017; 12:13. [PMID: 28058647 PMCID: PMC5216016 DOI: 10.1186/s11671-016-1783-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/09/2016] [Indexed: 05/27/2023]
Abstract
The application of hematite in lithium-ion batteries (LIBs) has been severely limited because of its poor cycling stability and rate performance. To solve this problem, hematite nanoparticles with oxygen vacancies have been rationally designed by a facile sol-gel method and a sequential carbon-thermic reduction process. Thanks to the existence of oxygen vacancies, the electrochemical performance of the as-obtained hematite nanoparticles is greatly enhancing. When used as the anode material in LIBs, it can deliver a reversible capacity of 1252 mAh g-1 at 2 C after 400 cycles. Meanwhile, the as-obtained hematite nanoparticles also exhibit excellent rate performance as compared to its counterparts. This method not only provides a new approach for the development of hematite with enhanced electrochemical performance but also sheds new light on the synthesis of other kinds of metal oxides with oxygen vacancies.
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Affiliation(s)
- Peiyuan Zeng
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Center for Nano Science and Technology, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, People's Republic of China
| | - Yueying Zhao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Center for Nano Science and Technology, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, People's Republic of China
| | - Yingwu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, China
| | - Xiaoxiao Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Center for Nano Science and Technology, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, People's Republic of China
| | - Jianwen Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Center for Nano Science and Technology, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, People's Republic of China
| | - Wanwan Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Center for Nano Science and Technology, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, People's Republic of China
| | - Zhen Fang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Center for Nano Science and Technology, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, People's Republic of China.
- , Present address: East Beijing Road 1#, Wuhu, Anhui Province, People's Republic of China.
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Valvo M, Liivat A, Eriksson H, Tai C, Edström K. Iron-Based Electrodes Meet Water-Based Preparation, Fluorine-Free Electrolyte and Binder: A Chance for More Sustainable Lithium-Ion Batteries? CHEMSUSCHEM 2017; 10:2431-2448. [PMID: 28296133 PMCID: PMC5488250 DOI: 10.1002/cssc.201700070] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/23/2017] [Indexed: 05/18/2023]
Abstract
Environmentally friendly and cost-effective Li-ion cells are fabricated with abundant, non-toxic LiFePO4 cathodes and iron oxide anodes. A water-soluble alginate binder is used to coat both electrodes to reduce the environmental footprint. The critical reactivity of LiPF6 -based electrolytes toward possible traces of H2 O in water-processed electrodes is overcome by using a lithium bis(oxalato)borate (LiBOB) salt. The absence of fluorine in the electrolyte and binder is a cornerstone for improved cell chemistry and results in stable battery operation. A dedicated approach to exploit conversion-type anodes more effectively is also disclosed. The issue of large voltage hysteresis upon conversion/de-conversion is circumvented by operating iron oxide in a deeply lithiated Fe/Li2 O form. Li-ion cells with energy efficiencies of up to 92 % are demonstrated if LiFePO4 is cycled versus such anodes prepared through a pre-lithiation procedure. These cells show an average energy efficiency of approximately 90.66 % and a mean Coulombic efficiency of approximately 99.65 % over 320 cycles at current densities of 0.1, 0.2 and 0.3 mA cm-2 . They retain nearly 100 % of their initial discharge capacity and provide an unmatched operation potential of approximately 2.85 V for this combination of active materials. No occurrence of Li plating was detected in three-electrode cells at charging rates of approximately 5C. Excellent rate capabilities of up to approximately 30C are achieved thanks to the exploitation of size effects from the small Fe nanoparticles and their reactive boundaries.
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Affiliation(s)
- Mario Valvo
- Department of Chemistry—Ångström LaboratoryUppsala UniversityBox 53875121UppsalaSweden), Fax: (+46) 018–513–548
| | - Anti Liivat
- Department of Chemistry—Ångström LaboratoryUppsala UniversityBox 53875121UppsalaSweden), Fax: (+46) 018–513–548
| | - Henrik Eriksson
- Department of Chemistry—Ångström LaboratoryUppsala UniversityBox 53875121UppsalaSweden), Fax: (+46) 018–513–548
| | - Cheuk‐Wai Tai
- Department of Materials and Environmental Chemistry—Arrhenius LaboratoryStockholm University10691StockholmSweden
| | - Kristina Edström
- Department of Chemistry—Ångström LaboratoryUppsala UniversityBox 53875121UppsalaSweden), Fax: (+46) 018–513–548
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Novoselova LY. Hematite nanoparticle clusters with remarkably high magnetization synthesized from water-treatment waste by one-step “sharp high-temperature dehydration”. RSC Adv 2017. [DOI: 10.1039/c7ra09062e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hematite (α-Fe2O3) nanoparticle clusters with an exceptionally high magnetization of 51 emu g−1 were synthesized for the first time. This material was prepared from water-treatment waste by a new “sharp high-temperature dehydration” process.
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Affiliation(s)
- L. Yu. Novoselova
- Institute of Petroleum Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 634055 Tomsk
- Russia
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