Roles of Metal Nanoparticles for Supercapacitors: A Review

IF 2.7 4区材料科学 Q3 CHEMISTRY, PHYSICAL

Particle & Particle Systems Characterization Pub Date : 2024-03-27 DOI:10.1002/ppsc.202400002

Ailan Yan, Xinchang Wang, Jipeng Cheng

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Abstract

Recent research on supercapacitors (SCs) has been attractive due to the potential application in a variety of fields related to energy storage. Electrode materials play a very important role for the performance of SCs and various metal nanoparticles are involved in the SC electrodes. In this paper, the roles of metal nanoparticles for SCs are reviewed and discussed. They can serve as a dopant to modify the surface of electrode materials, or be embedded in a composite to effectively reduce the resistance and lead to an enhanced specific capacitance. Some metal nanoparticles can be also employed as electrode materials directly, but easily being oxidized. Metallic nanoparticles can even act as current collectors, especially for these noble metals with excellent stability and high conductivity. Nanoporous metals prepared by dealloying and electrochemical method can be used as both pseudocapacitive materials and current collector of SCs. Some important experimental data on this issue are summarized. A brief discussion on the future directions, challenges and opportunities in this topic is also provided.

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超级电容器中金属纳米粒子的作用：综述

由于超级电容器（SC）可能应用于与能量储存有关的多个领域，因此最近对其进行的研究很有吸引力。电极材料对超级电容器的性能起着非常重要的作用，在超级电容器电极中涉及到各种金属纳米粒子。本文回顾并讨论了金属纳米粒子在 SC 中的作用。它们可以作为掺杂剂来修饰电极材料的表面，或嵌入复合材料中以有效降低电阻并提高比电容。一些金属纳米粒子也可直接用作电极材料，但容易被氧化。金属纳米颗粒甚至可以充当电流收集器，尤其是这些具有出色稳定性和高导电性的贵金属。通过脱合金和电化学方法制备的纳米多孔金属既可用作伪电容材料，也可用作 SC 的电流收集器。本文总结了有关这一问题的一些重要实验数据。还简要讨论了这一课题的未来方向、挑战和机遇。

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

Particle & Particle Systems Characterization 工程技术-材料科学：表征与测试

CiteScore

5.50

自引率

0.00%

发文量

114

审稿时长

3.0 months

期刊介绍： Particle & Particle Systems Characterization is an international, peer-reviewed, interdisciplinary journal focusing on all aspects of particle research. The journal joined the Advanced Materials family of journals in 2013. Particle has an impact factor of 4.194 (2018 Journal Impact Factor, Journal Citation Reports (Clarivate Analytics, 2019)). Topics covered include the synthesis, characterization, and application of particles in a variety of systems and devices. Particle covers nanotubes, fullerenes, micelles and alloy clusters, organic and inorganic materials, polymers, quantum dots, 2D materials, proteins, and other molecular biological systems. Particle Systems include those in biomedicine, catalysis, energy-storage materials, environmental science, micro/nano-electromechanical systems, micro/nano-fluidics, molecular electronics, photonics, sensing, and others. Characterization methods include microscopy, spectroscopy, electrochemical, diffraction, magnetic, and scattering techniques.