基于两性带电蛋白质涂层的界面可逆电场调控技术--迈向高倍率和稳健的锌阳极

IF 31.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters Pub Date : 2022-11-10 DOI:10.1007/s40820-022-00969-4

Meihua Zhu, Qing Ran, Houhou Huang, Yunfei Xie, Mengxiao Zhong, Geyu Lu, Fu-Quan Bai, Xing-You Lang, Xiaoteng Jia, Danming Chao

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引用次数: 0

摘要

亮点受 pH 值控制的正负电荷交替表面可加速和均化 Zn2+ 通量，使 Zn-丝纤维素（SF）阳极具有低极化电压和稳定的剥离/镀层。实验分析和理论计算表明，丝纤维素涂层促进了[Zn(H2O)6]2+的溶解，并为均匀沉积提供了成核点。 Zn-SF 阳极的对称电池具有高倍率性能（高达 20 mA cm-2）和出色的稳定性（1 mA cm-2 时 1500 小时；10 mA cm-2 时 500 小时），累计容量为 2.5 Ah cm-2。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Interface Reversible Electric Field Regulated by Amphoteric Charged Protein-Based Coating Toward High-Rate and Robust Zn Anode

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Interface Reversible Electric Field Regulated by Amphoteric Charged Protein-Based Coating Toward High-Rate and Robust Zn Anode

Highlights

Alternating positively and negatively charged surface controlled by pH expedites and homogenizes Zn²⁺ flux, endowing the Zn- silk fibroin (SF) anode with low polarization voltage and stable stripping/plating.
Experimental analyses with theoretical calculations suggest that SF coating facilitates the desolvation of [Zn(H₂O)₆]²⁺ and provides nucleation sites for uniform deposition.
Symmetric battery of Zn–SF anodes delivers high-rate performance (up to 20 mA cm⁻²) and excellent stability (1500 h at 1 mA cm⁻²; 500 h at 10 mA cm⁻²) with cumulative capacity of 2.5 Ah cm⁻².

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来源期刊

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

CiteScore

42.40

自引率

4.90%

发文量

715

审稿时长

13 weeks

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary and open-access journal that focus on science, experiments, engineering, technologies and applications of nano- or microscale structure and system in physics, chemistry, biology, material science, pharmacy and their expanding interfaces with at least one dimension ranging from a few sub-nanometers to a few hundreds of micrometers. Especially, emphasize the bottom-up approach in the length scale from nano to micro since the key for nanotechnology to reach industrial applications is to assemble, to modify, and to control nanostructure in micro scale. The aim is to provide a publishing platform crossing the boundaries, from nano to micro, and from science to technologies.