Synthesis of noble metal-free monodisperse high-entropy oxides hollow nanocubes libraries via a coordination etching strategy

Yuanting Lei, Huishan Shang (), Guosheng Li, Lili Zhang, Zhiyi Sun, Xiaochen Wang, Yafei Zhao, Xu Xiang, Zhi Zheng, Xinchang Pang, Jianrong Zeng, Ning Zhang (), Xiangwen Liu (), Wenxing Chen () and Bing Zhang
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Yuanting Lei: Zhengzhou University
Huishan Shang: Zhengzhou University
Guosheng Li: Zhengzhou University
Lili Zhang: Zhengzhou University
Zhiyi Sun: Beijing Institute of Technology
Xiaochen Wang: Zhengzhou University
Yafei Zhao: Zhengzhou University
Xu Xiang: Beijing University of Chemical Technology
Zhi Zheng: Xuchang University
Xinchang Pang: Zhengzhou University
Jianrong Zeng: Chinese Academy of Sciences
Ning Zhang: Zhengzhou University
Xiangwen Liu: Beijing Academy of Science and Technology
Wenxing Chen: Beijing Institute of Technology
Bing Zhang: Zhengzhou University

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract High-entropy oxides (HEOs) consist of multiple principal metal cations and oxygen anions, which enhances compositional versatility and promotes the emergence of atypical properties within oxide materials. Nonetheless, precisely shaping HEOs in hollow nanostructures remains a significant challenge due to the disparate nucleation and growth kinetics of the various metal oxide compositions in HEOs. Herein, we present a strategy for the synthesis of multicomponent hollow nanocubes HEOs libraries from ternary to octonary. We utilized a template-assisted route inspired by coordinating etching and integrating thermal treatment to synthesize HEOs hollow nanocubes through the selection of coordinating etchant and optimization of the reaction conditions. This approach demonstrates the potential for precisely designing high-quality HEOs hollow nanocubes with diverse compositions at low temperature, with promising prospects for various applications.

Date: 2025
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DOI: 10.1038/s41467-025-64796-y

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