Functional Layer with Electron-Rich Domain and Hierarchical Ion Channel toward Stable Zinc Anode.

IF 9.6 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-06-18 DOI:10.1021/acs.nanolett.5c02111

Xianhong Chen,Ziyang Zhong,Zikang Li,Guangchao Li,Yang Wang,Guozhao Fang,Wai-Yeung Wong

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引用次数: 0

Abstract

Aqueous zinc batteries represent a promising solution for energy storage applications, owing to their inherent safety and cost-effectiveness. However, challenges such as corrosion, hydrogen evolution, dendrite formation, and poor reversibility remain. To address these issues, this study presents a series of 2D porphyrin polymers featuring electron-rich domains and hierarchical ion channels as a protective layer for stabilizing zinc anodes. The hierarchical ion channels, characterized by a pore size of 3.7 nm, facilitate rapid ion transport and guide uniform Zn2+ deposition. The active porphyrin units, with electron-rich domains, could promote rapid Zn2+ deposition through enhanced Zn2+ adsorption, while also provide anticorrosion properties through the protective layer, thereby ensuring long-term cycle stability. As a result, the NiTPP@Zn symmetrical batteries demonstrate stable cycling performance for over 1700 h at 5 mA cm-2. Furthermore, the soft pack batteries exhibit sustained cycles with high specific capacity, highlighting the potential of NiTPP in enhancing the performance of aqueous zinc batteries for energy storage applications.

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具有富电子畴和分层离子通道的功能层实现锌阳极的稳定。

由于其固有的安全性和成本效益，水性锌电池代表了一种很有前途的储能应用解决方案。然而，诸如腐蚀、析氢、枝晶形成和可逆性差等挑战仍然存在。为了解决这些问题，本研究提出了一系列具有富电子域和分层离子通道的二维卟啉聚合物作为稳定锌阳极的保护层。该层次化离子通道孔径为3.7 nm，有利于离子的快速传递和Zn2+的均匀沉积。具有富电子结构域的活性卟啉单元可以通过增强Zn2+吸附来促进Zn2+的快速沉积，同时还可以通过保护层提供防腐性能，从而确保长期循环稳定性。结果，NiTPP@Zn对称电池在5ma cm-2下表现出超过1700小时的稳定循环性能。此外，软包电池表现出高比容量的持续循环，突出了NiTPP在提高水锌电池储能应用性能方面的潜力。

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 Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.