Pushing the limit of layered transition metal oxides with heterolattice oxygen-mediated redox for capacitive deionization

Zehao Zhang, Xingtao Xu (), Pin Ma, Yusuke Asakura, Zheng Wang, Yusuke Yamauchi () and Haibo Li
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Zehao Zhang: Ningxia University
Xingtao Xu: Zhejiang Ocean University
Pin Ma: Ningxia University
Yusuke Asakura: Nagoya University
Zheng Wang: Ningxia University
Yusuke Yamauchi: Nagoya University
Haibo Li: Ningxia University

Nature Communications, 2025, vol. 16, issue 1, 1-15

Abstract: Abstract The use of transition metal oxides to achieve capacitive deionization (CDI) via salt adsorption is based mainly on cation electrochemistry. Activating anionic (oxygen) redox chemistry can enable additional salt adsorption on transition metal oxides, but most conventional lattice oxygen‒metal configurations require high voltages (>4 V) for activation and are prone to lattice oxygen loss. Here, we propose a heterolattice oxygen-mediated redox mechanism to activate oxygen (O2p) redox at

Date: 2025
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DOI: 10.1038/s41467-025-58408-y

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