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Water-steam activation toward oxygen-deficient vanadium oxides for enhancing zinc ion storage
Yang, Hailun1,2; Ning, Pengge1,2; Zhu, Zewen3; Yuan, Ling1,2; Jia, Wenting1,2; Wen, Jiawei1,2; Xu, Gaojie1,2; Li, Yuping1,2; Cao, Hongbin1,2
2021-11-09
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume9Issue:43Pages:24517-24527
AbstractA major limitation of vanadium oxides in aqueous Zn/V2O5 ion battery applications is that they suffer from strong coulombic ion-lattice interactions with divalent Zn2+. Correspondingly, vanadium oxides show the poor utilization of their electrochemically active surface areas and unsatisfactory structural stability. The Gibbs free energy of Zn2+ adsorption in the vicinity of oxygen vacancies can be reduced to a thermoneutral value, which suggests that the Zn2+ adsorption/desorption process on the oxygen-deficient oxide lattice is more reversible as compared to a less defective vanadium oxide. In this work, it is demonstrated that these problems can be significantly ameliorated via creating oxygen vacancies in vanadium oxide host materials. Specifically, for the first time, vanadium oxides with abundant oxygen defects (labeled V-o-V2O5) are fabricated via a new water-steam activation strategy. Such water-steam activation forms abundant oxygen defects, and the as-prepared materials show a 3.5-fold increase in the carrier density, together with larger electrochemically active surface areas compared to a less defective vanadium oxide. When used as a cathode material for aqueous zinc ion batteries, V-o-V2O5 exhibits a high specific capacity (335 mA h g(-1) at 0.2 A g(-1)) and excellent cell stability (similar to 87.2% capacity retention after 3500 continuous charge/discharge cycles at 5.0 A g(-1)). Thus, this water-steam activation approach for disordered metal oxides yields highly competitive cathode materials, which may also aid in the future development of advanced materials in related energy fields.
DOI10.1039/d1ta07599c
Language英语
WOS KeywordBATTERY ; CATHODE ; V2O5 ; SPECTROSCOPY ; ABSORPTION ; INSERTION ; VANADATE
Funding ProjectNational Natural Science Foundation of China[22008248]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China
WOS IDWOS:000711951800001
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50738
Collection中国科学院过程工程研究所
Corresponding AuthorNing, Pengge; Cao, Hongbin
Affiliation1.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn,Natl Key Lab Biochem Engn,CAS Key, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.China Univ Geosci, Sch Mat Sci & Technol, Beijing 10083, Peoples R China
Recommended Citation
GB/T 7714
Yang, Hailun,Ning, Pengge,Zhu, Zewen,et al. Water-steam activation toward oxygen-deficient vanadium oxides for enhancing zinc ion storage[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(43):24517-24527.
APA Yang, Hailun.,Ning, Pengge.,Zhu, Zewen.,Yuan, Ling.,Jia, Wenting.,...&Cao, Hongbin.(2021).Water-steam activation toward oxygen-deficient vanadium oxides for enhancing zinc ion storage.JOURNAL OF MATERIALS CHEMISTRY A,9(43),24517-24527.
MLA Yang, Hailun,et al."Water-steam activation toward oxygen-deficient vanadium oxides for enhancing zinc ion storage".JOURNAL OF MATERIALS CHEMISTRY A 9.43(2021):24517-24527.
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