Engineering built-in electric fields in oxygen-deficient MnO-CeO<sub>2</sub>@Cs catalysts: enhanced performance and kinetics for the oxygen reduction reaction in aqueous/flexible zinc–air batteries

Wang, Lixia; Hu, Xinran; Li, Huatong; Huang, Zhiyang; Huang, Jia; Isimjan, Tayirjan Taylor; Yang, Xiulin

doi:10.1039/d3gc04537d

Green Chem.

2024

DOI: 10.1039/d3gc04537d

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Engineering built-in electric fields in oxygen-deficient MnO-CeO₂@Cs catalysts: enhanced performance and kinetics for the oxygen reduction reaction in aqueous/flexible zinc–air batteries

Lixia Wang,

Xinran Hu,

Huatong Li

et al.

Abstract: An oxygen-deficient MnO-CeO2@Cs catalyst, due to its high work function and strong built-in electric field, can effectively regulate charge redistribution and adsorption/desorption energies with reaction intermediates, thereby improving ORR activity.

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Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O₂ Reduction

Li,

Liu,

Kang

et al. 2024

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Atomically dispersed metal‐nitrogen‐carbon materials (AD‐MNCs) are considered the most promising non‐precious catalysts for the oxygen reduction reaction (ORR), but it remains a major challenge for simultaneously achieving high intrinsic activity, fast mass transport, and effective utilization of the active sites within a single catalyst. Here, an AD‐MNCs consisting of defect‐rich Fe‐N3 sites dispersed with axially coordinated Te atoms on porous carbon frameworks (Fe1Te1‐900) is designed. The local charge densities and energy band structures of the neighboring Fe and Te atoms in FeN3‐Te are rearranged to facilitate the catalytic conversion of the O‐intermediates. Meanwhile, the negative shift of the d‐band center in FeN3‐Te reduces the energy barrier limit for effective desorption of the final OH* intermediate. In the electrochemical evaluation, Fe1Te1‐900 presents a more positive onset potential and half‐wave potentials of 1.03 and 0.89 V versus the reversible hydrogen electrode, respectively. Furthermore, the liquid zinc‐air batteries assembled with Fe1Te1‐900 exhibited excellent performances compared to commercial Pt/C. This work opens up new ideas for the development of high‐performance ORR electrocatalysts for applications in various energy conversion and storage technologies.

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Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O₂ Reduction

Li,

Liu,

Kang

et al. 2024

Small

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Built-in electric field-driven electron transfer behavior at Ru-RuP2 heterointerface fosters efficient and CO-resilient alkaline hydrogen oxidation

Liu,

Cheng,

Zhou

et al. 2025

Applied Catalysis B: Environment and Energy

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Integrating internal electric field in PdRh-Cu2O/Cu nanorods: Revolutionizing low-energy hydrogen production and biomass upgrading

Shen,

Kang,

Wang

et al. 2025

Chemical Engineering Journal

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Engineering built-in electric fields in oxygen-deficient MnO-CeO₂@Cs catalysts: enhanced performance and kinetics for the oxygen reduction reaction in aqueous/flexible zinc–air batteries

Abstract: An oxygen-deficient MnO-CeO2@Cs catalyst, due to its high work function and strong built-in electric field, can effectively regulate charge redistribution and adsorption/desorption energies with reaction intermediates, thereby improving ORR activity.

Cited by 5 publications

References 59 publications

Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O₂ Reduction

Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O₂ Reduction

Built-in electric field-driven electron transfer behavior at Ru-RuP2 heterointerface fosters efficient and CO-resilient alkaline hydrogen oxidation

Integrating internal electric field in PdRh-Cu2O/Cu nanorods: Revolutionizing low-energy hydrogen production and biomass upgrading

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Engineering built-in electric fields in oxygen-deficient MnO-CeO2@Cs catalysts: enhanced performance and kinetics for the oxygen reduction reaction in aqueous/flexible zinc–air batteries

Abstract: An oxygen-deficient MnO-CeO2@Cs catalyst, due to its high work function and strong built-in electric field, can effectively regulate charge redistribution and adsorption/desorption energies with reaction intermediates, thereby improving ORR activity.

Cited by 5 publications

References 59 publications

Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O2 Reduction

Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O2 Reduction

Built-in electric field-driven electron transfer behavior at Ru-RuP2 heterointerface fosters efficient and CO-resilient alkaline hydrogen oxidation

Integrating internal electric field in PdRh-Cu2O/Cu nanorods: Revolutionizing low-energy hydrogen production and biomass upgrading

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Product

Resources

About

Engineering built-in electric fields in oxygen-deficient MnO-CeO₂@Cs catalysts: enhanced performance and kinetics for the oxygen reduction reaction in aqueous/flexible zinc–air batteries

Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O₂ Reduction

Engineering the Local Atomic Environments of Te‐Modulated Fe Single‐Atom Catalysts for High‐Efficiency O₂ Reduction