FeCo/FeCoP encapsulated in N, Mn-codoped three-dimensional fluffy porous carbon nanostructures as highly efficient bifunctional electrocatalyst with multi-components synergistic catalysis for ultra-stable rechargeable Zn-air batteries

Journal of Colloid and Interface Science, Год журнала: 2021, Номер 605, С. 451 - 462

Опубликована: Июль 23, 2021

Язык: Английский

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Oxygen‐Rich Cobalt–Nitrogen–Carbon Porous Nanosheets for Bifunctional Oxygen Electrocatalysis

Advanced Functional Materials, Год журнала: 2022, Номер 32(23)

Опубликована: Март 4, 2022

Abstract Metal–nitrogen–carbon (M–N–C) materials have attracted much interest in bifunctional oxygen‐involving electrocatalysis for rechargeable Zn–air batteries. Such M–N–C electrocatalysts with M–N x sites show good activity the oxygen reduction reaction (ORR) but moderate evolution (OER). Herein, an oxygen‐rich material (O–Co–N/C) a highly porous nanosheet structure is reported as electrocatalyst, which prepared by direct pyrolysis of ultrathin CoO nanosheets decorated zeolitic imidazolate framework‐8 nanoparticles under inert atmosphere. Particularly, Co O–Co–N/C electrocatalyst contain both Co–N and Co–O coordination environments to provide intrinsic active ORR OER, respectively. Furthermore, electrochemical studies that catalyst retains comparable common half‐wave potential 0.85 V vs reversible hydrogen electrode better OER overpotential 0.29 at current density 10 mA cm −2 . This study provides insights into development effective metal centers coordinated nitrogen atoms.

Язык: Английский

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Carbon‐Nanotube‐Bridging Strategy for Integrating Single Fe Atoms and NiCo Nanoparticles in a Bifunctional Oxygen Electrocatalyst toward High‐Efficiency and Long‐Life Rechargeable Zinc–Air Batteries

Advanced Energy Materials, Год журнала: 2022, Номер 12(48)

Опубликована: Ноя. 6, 2022

Abstract The development of highly efficient and robust bifunctional electrocatalysts for oxygen reduction (ORR) evolution reactions (OER) is the key issue realizing high‐performance long‐life rechargeable zinc–air batteries (ZABs). However, it still a great challenge to integrate independent ORR OER sites in catalyst with high activity. Here, carbon nanotube‐bridging strategy proposed synthesize such electrocatalyst enriched active single‐atom Fe nanosized NiCo hydroxides OER. Consequently, developed shows small overpotential difference 0.686 V. When used as an electrode catalyst, corresponding ZAB exhibits large power density 219.5 mW cm −2 , charge–discharge voltage gap 0.72 V at 10 mA outstanding discharge–charge durability without attenuation after more than 700 cycles. This work proposes new idea realize multifunctional catalysts drives practical application ZABs.

Язык: Английский

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Metal selenides for energy storage and conversion: A comprehensive review

Coordination Chemistry Reviews, Год журнала: 2023, Номер 479, С. 214984 - 214984

Опубликована: Янв. 6, 2023

Язык: Английский

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Adding Fe/dicyandiamide to Co-MOF to greatly improve its ORR/OER bifunctional electrocatalytic activity

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 341, С. 123346 - 123346

Опубликована: Сен. 27, 2023

Язык: Английский

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Robust nitrogen/selenium engineered MXene/ZnSe hierarchical multifunctional interfaces for dendrite-free zinc-metal batteries

Energy storage materials, Год журнала: 2022, Номер 49, С. 122 - 134

Опубликована: Март 30, 2022

Язык: Английский

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Caffeine derived graphene-wrapped Fe3C nanoparticles entrapped in hierarchically porous Fe N C nanosheets for boosting oxygen reduction reaction

Journal of Colloid and Interface Science, Год журнала: 2023, Номер 637, С. 216 - 224

Опубликована: Янв. 17, 2023

Язык: Английский

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Carbon-based electrocatalysts for rechargeable Zn–air batteries: design concepts, recent progress and future perspectives

Energy & Environmental Science, Год журнала: 2023, Номер 17(2), С. 386 - 424

Опубликована: Ноя. 22, 2023

This review provides an in-depth discussion of the carbon-based electrocatalysts for rechargeable Zn–air batteries from design strategies, research progress, and future perspectives.

Язык: Английский

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Design and Synthesis of Noble Metal‐Based Alloy Electrocatalysts and Their Application in Hydrogen Evolution Reaction

Small, Год журнала: 2023, Номер 19(35)

Опубликована: Апрель 26, 2023

Abstract Hydrogen energy is regarded as the ultimate source for future human society, and preparation of hydrogen from water electrolysis recognized most ideal way. One key factors to achieve large‐scale production by splitting availability highly active stable electrocatalysts. Although non‐precious metal electrocatalysts have made great strides in recent years, best evolution reaction (HER) are still based on noble metals. Therefore, it particularly important improve overall activity while reducing metals load. Alloying strategies can shoulder burden optimizing cost improving performance. With this mind, work application metal‐based alloy field summarized. In review, first, mechanism HER described; then, current development synthesis methods presented; finally, an example analysis practical studies presented. addition, at end prospects, opportunities, challenges facing tried discuss.

Язык: Английский

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B, N, F tri-doped lignin-derived carbon nanofibers as an efficient metal-free bifunctional electrocatalyst for ORR and OER in rechargeable liquid/solid-state Zn-air batteries

Applied Surface Science, Год журнала: 2022, Номер 598, С. 153891 - 153891

Опубликована: Июнь 6, 2022

Язык: Английский

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