在三元氢氧化铁钴镍电催化剂中掺入氟化物以促进氧进化反应

IF 5 3区材料科学 Q2 CHEMISTRY, PHYSICAL

Sustainable Energy & Fuels Pub Date : 2024-09-19 DOI:10.1039/D4SE01241K

Wen-Ju Lu and Tzung-Wen Chiou

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引用次数: 0

摘要

开发具有低过电位、高导电性、高活性表面积和高稳定性的大电流氧进化反应（OER）电催化剂是一项极具吸引力但又极具挑战性的工作。本文通过简单的电沉积方法，在铁钴镍(OH)x中掺杂氟化物，合成了氢氧化铁钴镍-氟化物三元材料。在 1.0 M KOH 溶液中，FeCoNiF(OH)x 在高比表面积泡沫镍电极上的 OER 性能分别为过电位 243、328 和 412 mV，几何电流密度分别为 100、500 和 1000 mA cm-2。此外，FeCoNiF(OH)x 在 1.0 M KOH 溶液中以 243 mV 的过电位持续 50 小时的受控电位电解过程中表现出很高的稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Doping fluoride into ternary FeCoNi hydroxide electrocatalysts to boost oxygen evolution reaction†

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Doping fluoride into ternary FeCoNi hydroxide electrocatalysts to boost oxygen evolution reaction†

Developing high-current oxygen evolution reaction (OER) electrocatalysts with low overpotential, high conductivity, high active surface area, and high stability is an attractive yet challenging process. Herein, a ternary FeCoNi hydroxide-fluoride material by doping fluoride into FeCoNi(OH)_x was synthesized through a simple electrodeposition method. The OER performance of FeCoNiF(OH)_x on a nickel foam electrode with a high surface area was associated with overpotentials of 243, 328, and 412 mV, with geometrical current densities of 100, 500, and 1000 mA cm⁻², respectively, in 1.0 M KOH solution. In addition, FeCoNiF(OH)_x exhibited high stability during controlled potential electrolysis in 1.0 M KOH at an overpotential of 243 mV for 50 h. Overall, we believe that our findings can advance the investigation of OER electrocatalysts.

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来源期刊

Sustainable Energy & Fuels Energy-Energy Engineering and Power Technology

CiteScore

10.00

自引率

3.60%

发文量

394

期刊介绍： Sustainable Energy & Fuels will publish research that contributes to the development of sustainable energy technologies with a particular emphasis on new and next-generation technologies.