电极处理用于回氧流电池:将我们的理解从转化为水性有机
Harsh Agarwal1,2, Esha Roy3, Nirala Singh1
1Department of Chemical Engineering and Catalysis Science and Technology Institute, University of Michigan Ann Arbor, Ann Arbor, MI, 48109-2136, USA.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|November 16, 2023
概括
对氧化还原流电池 (RFB) 的电极处理可以减少低效率. 本综述确定了大规模RFB (VRFB) 的热和等离子法等有前途的治疗方法.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 反氧流电池 (RFB) 具有长期储能潜力,但由于电极过电压而面临性能限制.
- RFB (VRFB) 是商业化最多的RFB技术,使电极优化对其广泛采用至关重要.
研究的目的:
- 系统地审查和比较VRFB的70多种电极处理方法,以确定那些最有效和工业上可行的方法.
- 通过在一致的条件下评估和考虑过程复杂性来解决选择最佳治疗的挑战.
主要方法:
- 对VRFB应用的70多种电极处理方法的比较分析.
- 基于实验室和工业规模的标准对治疗方法的评估,包括性能,稳定性,经济性和可实施性.
- 评估VRFB和水性有机RFB (AORFB) 之间的处理相似性.
主要成果:
- 几种处理方法,包括热,等离子体,电化学氧化,二氧化碳处理和Bi,Ag,Cu催化剂,显示出对大规模VRFB应用的重大前景.
- 确定了VRFB和AORFB之间的电极处理策略的相似之处.
- 强调需要标准化测试协议和RFB中电荷转移机制的基础研究.
结论:
- 特定的电极处理提供了一个可行的途径来提高VRFB性能和减少过电压.
- 为工业可扩展性确定了有前途的处理方法,为更高效的长期能源存储铺平了道路.
- 标准化和进一步的研究对于推进RFB技术至关重要.
相关概念视频
Voltaic/Galvanic Cells
57.4K
Spontaneous Chemical Reactions
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,...
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,...
57.4K
Electrolysis
26.5K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
26.5K
Batteries and Fuel Cells
27.5K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
27.5K
Electrodeposition
640
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
Electrodeposition can...
640
Voltammetry: Overview
1.7K
Voltammetry is an electroanalytical technique in which the current flowing through an electrochemical cell is measured as a function of applied potential, typically under conditions of concentration polarization. The technique provides valuable information about redox-active species, and the current response is plotted as a voltammogram.
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
1.7K
Standard Electrode Potentials
44.0K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
44.0K


