Performance of iron-air battery with iron nanoparticle-encapsulated C–N composite electrode

IF 3.1 4区工程技术 Q3 ENERGY & FUELS

Frontiers in Energy Pub Date : 2023-12-05 DOI:10.1007/s11708-023-0913-5

Can Fang, Xiangmei Tang, Jiaoyan Wang, Qingfeng Yi

引用次数: 0

Abstract

Highly efficient and stable iron electrodes are of great significant to the development of iron-air battery (IAB). In this paper, iron nanoparticle-encapsulated C–N composite (NanoFe@CN) was synthesized by pyrolysis using polyaniline as the C–N source. Electrochemical performance of the NanoFe@CN in different electrolytes (alkaline, neutral, and quasi-neutral) was investigated via cyclic voltammetry (CV). The IAB was assembled with NanoFe@CN as the anode and IrO₂ + Pt/C as the cathode. The effects of different discharging/charging current densities and electrolytes on the battery performance were also studied. Neutral K₂SO₄ electrolyte can effectively suppress the passivation of iron electrode, and the battery showed a good cycling stability during 180 charging/discharging cycles. Compared to the pure nano-iron (NanoFe) battery, the NanoFe@CN battery has a more stable cycling stability either in KOH or NH₄Cl + KCl electrolyte.

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铁纳米粒子封装 C-N 复合电极的铁-空气电池性能

高效稳定的铁电极对铁-空气电池（IAB）的开发具有重要意义。本文以聚苯胺为 C-N 源，通过热解合成了铁纳米粒子封装 C-N 复合材料（NanoFe@CN）。通过循环伏安法（CV）研究了 NanoFe@CN 在不同电解质（碱性、中性和准中性）中的电化学性能。IAB 以 NanoFe@CN 为阳极，IrO2 + Pt/C 为阴极。此外，还研究了不同的放电/充电电流密度和电解质对电池性能的影响。中性 K2SO4 电解液能有效抑制铁电极的钝化，电池在 180 次充放电循环中表现出良好的循环稳定性。与纯纳米铁（NanoFe）电池相比，NanoFe@CN 电池在 KOH 或 NH4Cl + KCl 电解液中都具有更稳定的循环稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers in Energy Energy-Energy Engineering and Power Technology

CiteScore

5.90

自引率

6.90%

发文量

708

期刊介绍： Frontiers in Energy, an interdisciplinary and peer-reviewed international journal launched in January 2007, seeks to provide a rapid and unique platform for reporting the most advanced research on energy technology and strategic thinking in order to promote timely communication between researchers, scientists, engineers, and policy makers in the field of energy. Frontiers in Energy aims to be a leading peer-reviewed platform and an authoritative source of information for analyses, reviews and evaluations in energy engineering and research, with a strong focus on energy analysis, energy modelling and prediction, integrated energy systems, energy conversion and conservation, energy planning and energy on economic and policy issues. Frontiers in Energy publishes state-of-the-art review articles, original research papers and short communications by individual researchers or research groups. It is strictly peer-reviewed and accepts only original submissions in English. The scope of the journal is broad and covers all latest focus in current energy research. High-quality papers are solicited in, but are not limited to the following areas: -Fundamental energy science -Energy technology, including energy generation, conversion, storage, renewables, transport, urban design and building efficiency -Energy and the environment, including pollution control, energy efficiency and climate change -Energy economics, strategy and policy -Emerging energy issue