相关实验视频
Updated: Jun 28, 2025

Fabrication of VB2/Air Cells for Electrochemical Testing
Published on: August 5, 2013
通过将VO2的电子结构定制为更高效的水性金属电池来触发多电子反应
Ping Luo1, Wenhui Zhong2, Wenwei Zhang3
1Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei Engineering Laboratory of Automotive Lightweight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China; Hubei Longzhong Laboratory, Hubei University of Technology, 441000 Xiang yang, Hubei, China.
兴奋剂增强了水性金属电池的VO2 (B). 这一战略提高了特定容量,结构稳定性和离子/电子传输,克服了储能应用中纯VO2 (B) 的局限性.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 由于其高容量和Zn2+插入的道结构,VO2 (B) 作为水性金属电池 (AZMB) 的阴极具有前景.
- 限制包括VO2 (B) 的结构不稳定性,较差的离子/电子运输,以及V3+/V4+氧化还原潜力的低容量.
研究的目的:
- 通过用 (Al3+) 进行兴奋剂来提高AZMBs中的VO2 (B) 性能.
- 研究Al3+兴奋剂对特定容量,结构稳定性和电荷传输动学的影响.
主要方法:
- 合成Al-doped VO2 材料的合成.
- 作为AZMBs中的阴极的Al-doped VO2的电化学表征.
- 对结构稳定性和负载运输机制的分析.
主要成果:
- 阿尔多激活了V4+/V5+多电子反应,增加了特定容量.
- 稳定的V5+O和Al3+O键的形成提高了结构完整性.
- 阿尔-兴奋剂诱导局部电场,加速离子和电子运输,导致较高的循环稳定性和动力学,与未兴奋的VO2相比.
结论:
- 化VO2显示了AZMBs显著改善的电化学性能.
- 异质原子兴奋剂是一种可行的策略,用于增强金属离子电池系统中的电极材料.
- 这种方法为开发超越基系统的先进电极材料提供了宝贵的见解.
相关概念视频
Voltaic/Galvanic Cells
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Electrolysis
Batteries and Fuel Cells
Standard Electrode Potentials
Voltammetry: Overview
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
Voltammetry: Stripping Methods
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...

