Article
 

Superior Cathode of Sodium-Ion Batteries: Orthorhombic V₂O₅ Nanoparticles Generated in Nanoporous Carbon by Ambient Hydrolysis Deposition

公开 Deposited

可下载的内容

下载PDF文件
https://ir.library.oregonstate.edu/concern/articles/j3860c28c

Descriptions

Attribute NameValues
Creator
Abstract
  • We, for the first time, demonstrate that orthorhombic V₂O₅ can exhibit superior electrochemical performance in sodium ion batteries when uniformly coated inside nanoporous carbon. The encapsulated V₂O₅ shows a specific capacity as high as 276 mAh/g, while the whole nanocomposite exhibits a capacity of 170 mAh/g. The V₂O₅/C composite was fabricated by a novel ambient hydrolysis deposition that features sequential water vapor adsorption in nanoporous carbon, followed by a hydrolysis reaction, exclusively inside the nanopores. The unique structure of the nanocomposite significantly enhances the capacity as well as the rate performance of orthorhombic V₂O₅ where the composite retains a capacity of over 90 mAh/g at a current rate of 640 mA/g. Furthermore, by calculating, we also revealed that a large portion of the sodium-ion storage, particularly at high current rates, is due to the V₂O₅ pseudocapacitance.
  • Keywords: Pseudocapacitance, Sodium-Ion Batteries, Orthorhombic V₂O₅, Ambient Hydrolysis Deposition
Resource Type
DOI
Date Available
Date Issued
Citation
  • Raju, V., Rains, J., Gates, C., Luo, W., Wang, X., Stickle, W. F., ... & Ji, X. (2014). Superior Cathode of Sodium-Ion Batteries: Orthorhombic V₂O₅ Nanoparticles Generated in Nanoporous Carbon by Ambient Hydrolysis Deposition. Nano Letters, 14(7), 4119-4124. doi:10.1021/nl501692p
Journal Title
Journal Volume
  • 14
Journal Issue/Number
  • 7
权利声明
Funding Statement (additional comments about funding)
  • X. J. gratefully acknowledges the financial support from Oregon State University. Partial support for this work was provided by the National Science Foundation under grant DMR 08-05148.
Publisher
Peer Reviewed
Language
Replaces

关联

Parents:

This work has no parents.

单件

缩略图 标题 上传日期 公开度 行动
file details Ji[David]XiuleiChemistrySuperiorCathodeSodium.pdf 10/27/2017 公开
file details Ji[David]XiuleiChemistrySuperiorCathodeSodium(SupportingInformation).pdf 10/27/2017 公开