Electron‐Sponge Nature of Polyoxometalates for Next‐Generation Electrocatalytic Water Splitting and Nonvolatile Neuromorphic Devices

Author:

Ahmad Waqar12,Ahmad Nisar3,Wang Kun12,Aftab Sumaira4,Hou Yunpeng12,Wan Zhengwei12,Yan Bei‐Bei4,Pan Zhao4,Gao Huai‐Ling4,Peung Chen1,Junke Yang1,Liang Chengdu12,Lu Zhihui12,Yan Wenjun5,Ling Min12ORCID

Affiliation:

1. Division of New Energy Materials Institute of Zhejiang University‐Quzhou Quzhou 324000 China

2. College of Chemical and Biological Engineering Zhejiang University Hangzhou 310058 China

3. School of Microelectronics University of Science and Technology of China Hefei 230026 China

4. CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern Mechanics CAS Center for Excellence in Complex System Mechanics University of Science and Technology of China Hefei 230027 China

5. School of Automation Hangzhou Dianzi University Hangzhou 310018 China

Abstract

AbstractDesigning next‐generation molecular devices typically necessitates plentiful oxygen‐bearing sites to facilitate multiple‐electron transfers. However, the theoretical limits of existing materials for energy conversion and information storage devices make it inevitable to hunt for new competitors. Polyoxometalates (POMs), a unique class of metal‐oxide clusters, have been investigated exponentially due to their structural diversity and tunable redox properties. POMs behave as electron‐sponges owing to their intrinsic ability of reversible uptake‐release of multiple electrons. In this review, numerous POM‐frameworks together with desired features of a contender material and inherited properties of POMs are systematically discussed to demonstrate how and why the electron‐sponge‐like nature of POMs is beneficial to design next‐generation water oxidation/reduction electrocatalysts, and neuromorphic nonvolatile resistance‐switching random‐access memory devices. The aim is to converge the attention of scientists who are working separately on electrocatalysts and memory devices, on a point that, although the application types are different, they all hunt for a material that could exhibit electron‐sponge‐like feature to realize boosted performances and thus, encouraging the scientists of two completely different fields to explore POMs as imperious contenders to design next‐generation nanodevices. Finally, challenges and promising prospects in this research field are also highlighted.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

General Physics and Astronomy,General Engineering,Biochemistry, Genetics and Molecular Biology (miscellaneous),General Materials Science,General Chemical Engineering,Medicine (miscellaneous)

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