Constructing a supercapacitor-memristor through nonlinear ion transport in MOF nanochannels

IF 16.3 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

National Science Review Pub Date : 2024-09-13 DOI:10.1093/nsr/nwae322

Pei Tang, Pengwei Jing, Zhiyuan Luo, Kekang Liu, Xiaoxi Zhao, Yining Lao, Qianqian Yao, Chuyi Zhong, Qingfeng Fu, Jian Zhu, Yanghui Liu, Qingyun Dou, Xingbin Yan

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引用次数: 0

Abstract

The coexistence and coupling of capacitive and memristive effects have been an important subject of scientific interest. While the capacitive effect in memristors has been extensively studied, the reciprocal scenario of the memristive effect in capacitors remains unexplored. In this study, we introduce a supercapacitor-memristor (CAPistor) concept, which is constructed by leveraging non-linear ion transport within the pores of a metal-organic framework-zeolitic imidazolate framework (ZIF-7). Within the nanochannels of ZIF-7 electrode in an aqueous pseudocapacitor, the anionic species (OH−) of electrolyte can be enriched and dissipated in different voltage regimes. This difference leads to a hysteresis effect in ion conductivity, constituting a memristive behavior in the pseudocapacitor. Thus, the pseudocapacitor-converted CAPistor seamlessly integrates the programmable resistance and memory functions of an ionic memristor into a supercapacitor, demonstrating enormous potential to extend the traditional energy storage applications of supercapacitors into emerging fields including biomimetic nanofluidic ionics and neuromorphic computing.

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通过 MOF 纳米通道中的非线性离子传输构建超级电容器-晶闸管

电容效应和忆阻效应的共存和耦合一直是科学界关注的重要课题。忆阻器中的电容效应已得到广泛研究，但电容器中忆阻效应的对等情况仍未得到探索。在这项研究中，我们引入了超级电容器-忆阻器（CAPistor）的概念，它是通过利用金属有机框架-唑基咪唑啉框架（ZIF-7）孔隙内的非线性离子传输而构建的。在水性伪电容器的 ZIF-7 电极纳米通道内，电解液中的阴离子（OH-）在不同的电压条件下会发生富集和耗散。这种差异会导致离子导电性出现滞后效应，从而在伪电容器中形成一种记忆行为。因此，伪电容器转换 CAPistor 将离子忆阻器的可编程电阻和记忆功能无缝集成到了超级电容器中，展示了将超级电容器的传统储能应用扩展到新兴领域（包括仿生纳米流体离子技术和神经形态计算）的巨大潜力。

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

National Science Review MULTIDISCIPLINARY SCIENCES-

CiteScore

24.10

自引率

1.90%

发文量

249

审稿时长

13 weeks

期刊介绍： National Science Review (NSR; ISSN abbreviation: Natl. Sci. Rev.) is an English-language peer-reviewed multidisciplinary open-access scientific journal published by Oxford University Press under the auspices of the Chinese Academy of Sciences.According to Journal Citation Reports, its 2021 impact factor was 23.178. National Science Review publishes both review articles and perspectives as well as original research in the form of brief communications and research articles.