Materials Containing Single‐, Di‐, Tri‐, and Multi‐Metal Atoms Bonded to C, N, S, P, B, and O Species as Advanced Catalysts for Energy, Sensor, and Biomedical Applications

Advanced Science, Год журнала: 2024, Номер 11(33)

Опубликована: Июль 1, 2024

Abstract Modifying the coordination or local environments of single‐, di‐, tri‐, and multi‐metal atom (SMA/DMA/TMA/MMA)‐based materials is one best strategies for increasing catalytic activities, selectivity, long‐term durability these materials. Advanced sheet supported by metal atom‐based have become a critical topic in fields renewable energy conversion systems, storage devices, sensors, biomedicine owing to maximum utilization efficiency, precisely located centers, specific electron configurations, unique reactivity, precise chemical tunability. Several offer excellent support are attractive applications energy, medical research, such as oxygen reduction, production, hydrogen generation, fuel selective detection, enzymatic reactions. The strong metal–metal metal–carbon with metal–heteroatom (i.e., N, S, P, B, O) bonds stabilize optimize electronic structures atoms due interfacial interactions, yielding activities. These provide models understanding fundamental problems multistep This review summarizes substrate structure‐activity relationship different active sites based on experimental theoretical data. Additionally, new synthesis procedures, physicochemical characterizations, biomedical discussed. Finally, remaining challenges developing efficient SMA/DMA/TMA/MMA‐based presented.

Язык: Английский

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Precisely Constructing Orbital‐Coupled Fe─Co Dual‐atom Sites for High‐Energy‐Efficiency Zn–Air/Iodide Hybrid Batteries

Advanced Materials, Год журнала: 2024, Номер 36(32)

Опубликована: Май 30, 2024

Abstract Rechargeable Zn–air batteries (ZABs) are promising for energy storage and conversion. However, the high charging voltage low efficiency hinder their commercialization. Herein, these challenges addressed by employing precisely constructed multifunctional Fe–Co diatomic site catalysts (FeCo‐DACs) integrating iodide/iodate redox into ZABs to create Zinc–air/iodide hybrid (ZAIHBs) with highly efficient catalyst. The strong coupling between 3d orbitals of Fe Co weakens excessively binding strength active sites intermediates, enhancing catalytic activities oxygen reduction/evolution reaction redox. Consequently, FeCo‐DACs exhibit outstanding bifunctional activity a small potential gap (Δ E = 0.66 V) stability. Moreover, an performance toward is obtained. Therefore, FeCo‐DAC‐based ZAIHBs up 75% at 10 mA cm −2 excellent cycling stability (72% after 500 h). This research offers critical insights rational design DACs paves way high‐energy devices.

Язык: Английский

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From Synthesis to Mechanisms: In‐Depth Exploration of the Dual‐Atom Catalytic Mechanisms Toward Oxygen Electrocatalysis

Advanced Materials, Год журнала: 2024, Номер 36(37)

Опубликована: Фев. 20, 2024

Abstract Dual‐atom catalysts (DACs) hold a higher metal atom loading and provide greater flexibility in terms of the structural characteristics their active sites comparison to single‐atom catalysts. Consequently, DACs great promise for achieving improved catalytic performance. This article aims focused overview latest advancements DACs, covering synthesis mechanisms reversible oxygen electrocatalysis, which plays key role sustainable energy conversion storage technologies. The discussion starts by highlighting structures differences diatomic coordination induced various substrates. Subsequently, state‐of‐the‐art fabrication strategies electrocatalysis are discussed from several different perspectives. It particularly highlights challenges increasing capacity. More importantly, main focus this is investigate correlation between configuration activity order gain deeper understanding roles electrocatalysis. will be achieved through density functional theory calculations sophisticated situ characterization aim guidelines optimizing upgrading Additionally, discusses current future prospects rapidly evolving area research.

Язык: Английский

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Asymmetric Coordination of Bimetallic Fe–Co Single-Atom Pairs toward Enhanced Bifunctional Activity for Rechargeable Zinc–Air Batteries

ACS Nano, Год журнала: 2024, Номер 18(20), С. 13006 - 13018

Опубликована: Май 13, 2024

The advancement of rechargeable zinc–air batteries (RZABs) faces challenges from the pronounced polarization and sluggish kinetics oxygen reduction evolution reactions (ORR OER). Single-atom catalysts offer an effective solution, yet their insufficient or singular catalytic activity hinders development. In this work, a dual single-atom catalyst, FeCo-SAs, was fabricated, featuring atomically dispersed N3–Fe–Co–N4 sites on N-doped graphene nanosheets for bifunctional activity. Introducing Co into Fe single-atoms secondary pyrolysis altered coordination with N, creating asymmetric environment that promoted charge transfer increased density states near Fermi level. This catalyst achieved narrow potential gap 0.616 V, half-wave 0.884 V ORR (vs reversible hydrogen electrode) low OER overpotential 270 mV at 10 mA cm–2. Owing to superior RZABs exhibited peak power 203.36 mW cm–2 extended cycle life over 550 h, exceeding commercial Pt/C + IrO2 catalyst. Furthermore, flexible FeCo-SAs demonstrated promising future bimetallic pairs in wearable energy storage devices.

Язык: Английский

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Modulating space charge of FeP/CoP p-n heterojunction for boosting oxygen evolution reaction

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 664, С. 349 - 359

Опубликована: Март 11, 2024

Язык: Английский

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Active site switching on high entropy phosphides as bifunctional oxygen electrocatalysts for rechargeable/robust Zn–air battery

Energy & Environmental Science, Год журнала: 2024, Номер 17(19), С. 7193 - 7208

Опубликована: Янв. 1, 2024

FeCoNiPdWP exhibit excellent oxygen evolution and reduction reaction performance via all elements playing distinctive roles the switchable active sites in redox reactions, leading to robust zinc air batteries.

Язык: Английский

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Unveiling Ionized Interfacial Water‐Induced Localized H* Enrichment for Electrocatalytic Nitrate Reduction

Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)

Опубликована: Сен. 4, 2024

Electrocatalytic nitrate reduction reaction (NO

Язык: Английский

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Wood-derived continuously oriented channels coupled with tunable built-in electric fields for efficient oxygen evolution

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 360, С. 124550 - 124550

Опубликована: Авг. 28, 2024

Язык: Английский

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Precise synthesis of dual atom sites for electrocatalysis

Nano Research, Год журнала: 2024, Номер unknown

Опубликована: Сен. 17, 2024

Язык: Английский

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Polyhedral Coordination Determined Co‐O Activity for Electrochemical Oxidation of Biomass Alcohols

Advanced Energy Materials, Год журнала: 2023, Номер 13(37)

Опубликована: Авг. 11, 2023

Abstract Earth‐abundant transition metal oxides are promising electrocatalysts for oxidation of biomass alcohols. Here, CoO and Co 3 O 4 selected as representative cobalt oxide catalysts grown on carbon fiber paper (CFP) electrodes to reveal the interplay between electronic structure catalytic activity glycerol, diols, monohydric In situ electrochemical tests elucidate that CoO/CFP electrode has lower interfacial impedance, higher charge transfer, faster rate, thereby alcohol than /CFP electrode. Especially glycerol oxidation, only requires 1.32 V reach 10 mA cm −2 , potential is 120 mV The can also produce value‐added products such formate, acetate, glycolate with high selectivity efficiency at low energy consumptions from Theoretical calculations further confirm dominant role octahedrally coordinated Co‐O sites in adsorption, activation, C3‐C1 This work sheds light design highly efficient alcohols by populating octahedral crystal structure.

Язык: Английский

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