Catalyst–Support Interaction in Polyaniline-Supported Ni3Fe Oxide to Boost Oxygen Evolution Activities for Rechargeable Zn-Air Batteries

IF 26.6 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2024-09-21 DOI:10.1007/s40820-024-01511-4

Xiaohong Zou, Qian Lu, Mingcong Tang, Jie Wu, Kouer Zhang, Wenzhi Li, Yunxia Hu, Xiaomin Xu, Xiao Zhang, Zongping Shao, Liang An

引用次数: 0

Abstract

Highlights

Ni₃Fe oxide, with an average size of 3.5 ± 1.5 nm, was successfully deposited onto polyaniline (PANI) support through a solvothermal strategy followed by calcination.
The catalyst–support interaction between Ni₃Fe oxide and PANI can enhance the Ni-O covalency via the interfacial Ni-N bond.
Ni₃Fe oxide/PANI-assembled Zn-air batteries achieve superior cycling life for over 400 h at 10 mA cm⁻² and a low charge potential of around 1.95 V.

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聚苯胺支撑的 Ni3Fe 氧化物中催化剂与支撑物之间的相互作用可提高可充电锌-空气电池的氧进化活性。

催化剂与支撑物之间的相互作用在提高氧进化反应（OER）的催化活性方面起着至关重要的作用。在这里，我们用一种坚固的异质界面调节了聚苯胺支撑的氧化镍三铁（Ni3Fe oxide/PANI）中催化剂与支撑物之间的相互作用，从而显著提高了氧进化活性，在 10 mA cm-2 的过电位为 270 mV，过电位为 300 mV 时比活性为 2.08 mA cmECSA-2，是氧化镍三铁的 3.84 倍。研究表明，Ni3Fe 氧化物与 PANI 载体之间的催化剂-载体相互作用通过界面 Ni-N 键增强了 Ni-O 的共价性，从而促进了 Ni3Fe 氧化物上的电荷和质量转移。考虑到其优异的活性和稳定性，采用最佳的 Ni3Fe 氧化物/PANI 组装了可充电锌-空气电池，在 10 mA cm-2 的条件下，可提供 1.95 V 的低充电电压，循环 400 小时。催化剂与支持物相互作用对催化活性影响的调节为未来设计高效的 OER 催化剂提供了新的可能性。

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

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.