热电极活化对KCrPDTA/K4Fe(CN)6液流电池电催化剂性能的影响

IF 5.1 4区材料科学 Q2 ELECTROCHEMISTRY

Batteries & Supercaps Pub Date : 2024-11-28 DOI:10.1002/batt.202400696

Talia Echeverria, Francesco Bernasconi, Paweł P. Ziemiański, David Reber

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引用次数: 0

摘要

改善电极性能对提高氧化还原液流电池的能量效率和功率密度至关重要。本文研究了碳纸电极的热活化对高压KCrPDTA/K4Fe(CN)6液流电池中铋电催化剂性能的影响。虽然热活化提高了润湿性和表面积，但它也会导致大的、凝聚的铋矿床的形成，从而降低了库仑效率。虽然铋降低了电池电阻并提高了电压效率，但它会根据其形态促进寄生氢的进化，这强调了优化催化剂沉积技术的必要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Impact of Thermal Electrode Activation on Electrocatalyst Performance in KCrPDTA/K4Fe(CN)6 Flow Batteries

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Impact of Thermal Electrode Activation on Electrocatalyst Performance in KCrPDTA/K4Fe(CN)6 Flow Batteries

Improving electrode performance is crucial for increasing energy efficiency and power density in redox flow batteries. Here, we study the effects of thermal activation of carbon paper electrodes on the performance of bismuth as an electrocatalyst in high-voltage KCrPDTA/K₄Fe(CN)₆ flow batteries. While thermal activation improves wettability and surface area, it also leads to the formation of large, agglomerated bismuth deposits that reduce Coulombic efficiency. Although bismuth lowers cell resistance and enhances voltage efficiency, it promotes parasitic hydrogen evolution depending on its morphology, underscoring the need for optimized catalyst deposition techniques.

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来源期刊

Batteries & Supercaps Multiple-

CiteScore

8.60

自引率

5.30%

发文量

223

期刊介绍： Electrochemical energy storage devices play a transformative role in our societies. They have allowed the emergence of portable electronics devices, have triggered the resurgence of electric transportation and constitute key components in smart power grids. Batteries & Supercaps publishes international high-impact experimental and theoretical research on the fundamentals and applications of electrochemical energy storage. We support the scientific community to advance energy efficiency and sustainability.