Bimetallic Single-Atom Catalysts for Water Splitting

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Sept. 25, 2024

Abstract Green hydrogen from water splitting has emerged as a critical energy vector with the potential to spearhead global transition fossil fuel-independent society. The field of catalysis been revolutionized by single-atom catalysts (SACs), which exhibit unique and intricate interactions between atomically dispersed metal atoms their supports. Recently, bimetallic SACs (bimSACs) have garnered significant attention for leveraging synergistic functions two ions coordinated on appropriately designed BimSACs offer an avenue rich metal–metal metal–support cooperativity, potentially addressing current limitations in effectively furnishing transformations involve synchronous proton–electron exchanges, substrate activation reversible redox cycles, simultaneous multi-electron transfer, regulation spin states, tuning electronic properties, cyclic states low energies. This review aims encapsulate growing advancements bimSACs, emphasis pivotal role generation via splitting. We subsequently delve into advanced experimental methodologies elaborate characterization SACs, elucidate discuss local coordination environment. Overall, we present comprehensive discussion deployment bimSACs both evolution reaction oxygen reaction, half-reactions electrolysis process.

Language: Английский

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Electronic nose for the detection and discrimination of volatile organic compounds: application, challenges, and perspectives

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 180, P. 117958 - 117958

Published: Sept. 6, 2024

Language: Английский

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Atomic Cobalt Metal Centers with Asymmetric N/B‐Coordination for Promoting Oxygen Reduction Reaction

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: July 5, 2024

Abstract Cobalt single atom catalysts (SACs) have exhibited promising performance in both the oxygen reduction reaction (ORR) and evolution (OER), positioning them as potential dual‐functional for Zn‐air battery. However, long‐standing challenge lies achieving satisfactory dual‐functionality stability of these SACs. In this study, to optimize 4e ‒ ORR performance, boron (B) atoms are employed with low electronegativity regulate structure Co–N–C catalytic center. This resulted formation an asymmetrically coordinated Co metal center catalyst (Co‐N 3 B). Compared Co‐N 4 , B lower free energy stronger adsorption toward * O species, effectively suppressing 2e pathway at cobalt site preventing corrosion induced by hydrogen peroxide (H 2 ) reactions, thereby enhancing stability. situ attenuated total reflectance surface‐enhanced infrared absorption spectroscopy (ATR‐SEIRAS) further validated excellent interaction between active centers intermediates. Furthermore, self‐made rechargeable zinc‐air battery demonstrated remarkable discharge peak power density (≈253 mW cm ‒2 ), (≈819 mAh g ‒1 cyclic exceeding 110 h. study provides new insights into constructing atomic‐level precision offers strong references practical applications storage convension electrocatalysts.

Language: Английский

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Recent progress of separation and sensing applications of metal-organic framework-based membranes

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160371 - 160371

Published: Feb. 1, 2025

Language: Английский

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Two is superior to one: Bi-metallic low-nuclearity catalysts for advanced catalytic applications

Applied Materials Today, Journal Year: 2025, Volume and Issue: 44, P. 102716 - 102716

Published: April 11, 2025

Language: Английский

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