Sulfur‐Bridged Asymmetric CuNi Bimetallic Atom Sites for CO₂ Reduction with High Efficiency

Advanced Materials, Год журнала: 2024, Номер 36(33)

Опубликована: Июнь 25, 2024

Abstract Double‐atom catalysts (DACs) with asymmetric coordination are crucial for enhancing the benefits of electrochemical carbon dioxide reduction and advancing sustainable development, however, rational design DACs is still challenging. Herein, this work synthesizes atomically dispersed novel sulfur‐bridged Cu‐S‐Ni sites (named Cu‐S‐Ni/SNC), utilizing biomass wool keratin as precursor. The plentiful disulfide bonds in overcome limitations traditional gas‐phase S ligand etching process enable one‐step formation S‐bridged sites. X‐ray absorption spectroscopy (XAS) confirms existence bimetallic N 2 Cu‐S‐NiN moiety. In H‐cell, Cu‐S‐Ni/SNC shows high CO Faraday efficiency 98.1% at −0.65 V versus RHE. Benefiting from charge tuning effect between metal site bridged sulfur atoms, a large current density 550 mA cm −2 can be achieved −1.00 flow cell. Additionally, situ XAS, attenuated total reflection surface‐enhanced infrared (ATR‐SEIRAS), functional theory (DFT) calculations show Cu main adsorption dual‐regulated by Ni which enhances activation accelerates *COOH intermediates. This kind atom may open new pathways precision preparation performance regulation atomic materials toward energy applications.

Язык: Английский

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Tailoring the d-band electronic structure of FePc by direct oxygen bridge on ZIF-8 derived ultrathin carbon shell to improve the oxygen reduction performance

Nano Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Nanostructured DyFeO₃ photocatalyst: an authentic and effective approach for remediation of industrial and pharmaceutical wastewater

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(37), С. 25475 - 25490

Опубликована: Янв. 1, 2024

Illustration of the photocatalytic degradation mechanism pollutants by DyFeO 3 under solar irradiation, emphasizing enhanced apparent quantum yield and reduction in activation energy facilitated .

Язык: Английский

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Enhanced photoelectrochemical performance of Bi2WO6 via gradient doping and homojunction engineering for organic pollutant degradation

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180217 - 180217

Опубликована: Апрель 1, 2025

Язык: Английский

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Accurate electrochemical paracetamol sensor for drug control through catalytic roles of single Fe atoms

Rare Metals, Год журнала: 2025, Номер unknown

Опубликована: Апрель 11, 2025

Язык: Английский

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Designing catalysts to formic acid oxidation reaction: From nanoscale to single atoms

Journal of Central South University, Год журнала: 2024, Номер 31(12), С. 4586 - 4600

Опубликована: Дек. 1, 2024

Язык: Английский

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