Sacrificial ZnO nanorods drive N and O dual-doped carbon towards trifunctional electrocatalysts for Zn–air batteries and self-powered water splitting devices

Summary Perovskite‐based electrocatalysts are extensively investigated as a replacement for noble metals electrocatalysts for energy storage and conversion devices. Their interesting catalytic activity, low cost, and diversity are considered major advantages. In this work, a facile dual‐doping strategy has been conducted and yielded an astonishing upgrade of lanthanum cobaltite; fine‐tuning of both A and B sites with calcium and manganese has proven remarkably beneficial. The dual‐doping modulates the electronic configuration of both transition metals and raises the oxygen vacancies. Consequently, oxygen evolution reaction has been assessed and La0.8Ca0.2Mn0.2Co0.8O3 showed significantly improved overpotential and maximal current density in comparison with pristine LaCoO3. Furthermore, the ZAB exhibited a high open circuit potential and superior charge‐discharge cyclability, compared to Pt/C‐based electrodes. The current work explores the influence of simultaneous doping of the A and B sites in lanthanum perovskite oxides on electrocatalytic performance to encourage further exploration of such an approach in electrocatalysis. Novelty statement Simultaneous Ca and Mn dual‐doping of LaCoO3 in the A and B sites were successfully applied. The effects on the crystal structure, oxidation states, and electrocatalytic activity were studied. LCMC8228‐based ZAB has achieved a large discharge capacity of 88.1 mAh in comparison to the benchmark.

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A dual‐doping strategy of LaCoO ₃ for optimized oxygen evolution reaction toward zinc‐air batteries application

Hilal

Şanlı

Dekyvere

et al. 2022

Intl J of Energy Research

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Ni3Fe nanoparticles encapsulated by N-doped carbon derived from MOFs for oxygen evolution reaction

Cao

Wu²,

Li³

et al. 2022

Journal of Alloys and Compounds

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Oxygen vacancies and surface reconstruction on NiFe LDH@Ni(OH)2 heterojunction synergistically triggering oxygen evolution and urea oxidation reaction

Gan

Cai

et al. 2022

Journal of Alloys and Compounds

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Sacrificial ZnO nanorods drive N and O dual-doped carbon towards trifunctional electrocatalysts for Zn–air batteries and self-powered water splitting devices

Abstract: Integrated energy systems (IES) are retaining growing attention in recent years. Zn-air batteries powered water splitting devices necessitate the development of highly active and durable trifunctional electrocatalysts for oxygen evolution,...

Cited by 7 publications

References 82 publications

A dual‐doping strategy of LaCoO ₃ for optimized oxygen evolution reaction toward zinc‐air batteries application

A dual‐doping strategy of LaCoO ₃ for optimized oxygen evolution reaction toward zinc‐air batteries application

Ni3Fe nanoparticles encapsulated by N-doped carbon derived from MOFs for oxygen evolution reaction

Oxygen vacancies and surface reconstruction on NiFe LDH@Ni(OH)2 heterojunction synergistically triggering oxygen evolution and urea oxidation reaction

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Sacrificial ZnO nanorods drive N and O dual-doped carbon towards trifunctional electrocatalysts for Zn–air batteries and self-powered water splitting devices

Abstract: Integrated energy systems (IES) are retaining growing attention in recent years. Zn-air batteries powered water splitting devices necessitate the development of highly active and durable trifunctional electrocatalysts for oxygen evolution,...

Cited by 7 publications

References 82 publications

A dual‐doping strategy of LaCoO 3 for optimized oxygen evolution reaction toward zinc‐air batteries application

A dual‐doping strategy of LaCoO 3 for optimized oxygen evolution reaction toward zinc‐air batteries application

Ni3Fe nanoparticles encapsulated by N-doped carbon derived from MOFs for oxygen evolution reaction

Oxygen vacancies and surface reconstruction on NiFe LDH@Ni(OH)2 heterojunction synergistically triggering oxygen evolution and urea oxidation reaction

Contact Info

Product

Resources

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A dual‐doping strategy of LaCoO ₃ for optimized oxygen evolution reaction toward zinc‐air batteries application

A dual‐doping strategy of LaCoO ₃ for optimized oxygen evolution reaction toward zinc‐air batteries application