Dinuclear metal synergistic catalysis for energy conversion

Chemical Society Reviews, Год журнала: 2023, Номер 52(9), С. 3170 - 3214

Опубликована: Янв. 1, 2023

An exclusive review focusing on catalysts exhibiting the dinuclear metal synergistic catalysis (DMSC) effect for energy conversion reactions is presented.

Язык: Английский

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Single-atom catalysts for electrochemical N2 reduction to NH3

Rare Metals, Год журнала: 2023, Номер 42(4), С. 1075 - 1097

Опубликована: Янв. 24, 2023

Язык: Английский

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Nanostructure engineering of ruthenium-modified electrocatalysts for efficient electrocatalytic water splitting

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(7), С. 3844 - 3878

Опубликована: Янв. 1, 2024

This review provides a systematic summary of the nanostructure engineering Ru-modified electrocatalysts for electrocatalytic water splitting. These regulation strategies, such as single atom sites, doping, alloying and interfacial are summarized in detail.

Язык: Английский

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Electrochemical Conversion of CO₂ into Formate Boosted by In Situ Reconstruction of Bi-MOF to Bi₂O₂CO₃ Ultrathin Nanosheets

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(11), С. 13882 - 13892

Опубликована: Март 8, 2024

Substantial emissions of CO2 have presented formidable challenges for global climate dynamics. Electrochemical reduction to produce formic acid (HCOOH) is considered be a promising approach achieving carbon neutrality. Nevertheless, the development catalyst exhibiting both high catalytic activity and selectivity toward desired products remains an arduous task. Herein, we report synthesis unique porous bismuth-based MOF (Bi-BTC) through microwave-assisted agitation. The Bi-BTC has good performance in electrochemical CO2RR formate products. At −0.9 V (vs RHE) potential, Faradaic efficiency can reach 96%, current density 25 mA/cm2. also exhibits stability. FEformate were maintained 24 h with almost no attenuation. It was found that reconstructed process. shape nanocolumn before electrolysis transformed into ultrathin nanosheet. soft hard acid–base theory (HSAB) proves reason reconfiguration base ions (HCO3–) intermediate (Bi3+) break Bi–O bond Bi-MOF, resulting transition original column structure Bi2O2CO3 nanosheeets. DFT calculation shows restructured nanosheet exposes crystal surface structure, which conducive lower activation energy barrier *OCHO stabilizing reaction intermediate. Therefore, it more beneficial improve formation. This result irreversible CO2RR. In addition, coupling cathode stable anode (IrO2) enables battery-driven high-activity OER efficiency.

Язык: Английский

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Regulating Adsorption of Intermediates via the Sulfur Modulating Dual-Atomic Sites for Boosting CO₂RR

ACS Catalysis, Год журнала: 2024, Номер 14(11), С. 8889 - 8898

Опубликована: Май 24, 2024

The formation of dual-atom catalysts or heteroatom ligand modulation is the most promising strategy for optimizing single–atom (SACs) more efficient conversion CO2 to valuable chemicals. However, ligands introduced into dual-atomic sites are expected but still under-explored. In this study, a Fe–Ni pair electrocatalyst with N– and S–coordination in porous carbon nanosheets was conceptually predicted electrocatalytic reduction CO (CO2RR). contrast SACs traditional diatomic (DACs), joined can balance cooperative activities Fe Ni sites, making adsorption configuration bidentate at both sites. This regulation leads substantial change CO* from facilitating desorption boosting CO2RR. Experimental results demonstrate that obtained FeNi–NSC catalyst achieves high selectivity Faradaic efficiencies 96.1%, remarkable activity turnover frequency 6526.9 h–1 −1.0 V, which were over 4.5 2.5 times those single work gives us insight designing highly effective guided by theoretical calculation.

Язык: Английский

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A General Metal Ion Recognition Strategy to Mediate Dual-Atomic-Site Catalysts

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(36), С. 24945 - 24955

Опубликована: Авг. 30, 2024

Heterogeneous dual-atomic-site catalysts (DACs) hold great potential for diverse applications. However, to date, the synthesis of DACs primarily relies on different atoms freely colliding support during synthesis, principally leading low yields. Herein, we report a general metal ion recognition (MIR) strategy constructing series DACs, including but not limited Fe1Sn1, Fe1Co1, Fe1Ni1, Fe1Cu1, Fe1Mn1, Co1Ni1, Co1Cu1, Co2, and Cu2. This is achieved by coupling target inorganometallic cations anions as pairs, which are sequentially adsorbed onto nitrogen-doped carbon substrate precursor. Taking oxygen reduction reaction an example, demonstrated that Fe1Sn1-DAC synthesized through this delivers record peak power density 1.218 W cm–2 under 2.0 bar H2–O2 conditions enhanced stability compared single-atom-site FeN4. Further study revealed superior performance arises from synergistic effect Fe1Sn1 dual vicinal sites, effectively optimizes adsorption *OH alleviates troublesome Fenton-like reaction.

Язык: Английский

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Recent advances and challenges of double-atom catalysts in diverse environmental applications: A state-of-the-art review

Coordination Chemistry Reviews, Год журнала: 2025, Номер 532, С. 216545 - 216545

Опубликована: Фев. 19, 2025

Язык: Английский

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A Fe-Ni-Zn triple single-atom catalyst for efficient oxygen reduction and oxygen evolution reaction in rechargeable Zn-air batteries

Chemical Engineering Journal, Год журнала: 2023, Номер 460, С. 141868 - 141868

Опубликована: Фев. 11, 2023

Язык: Английский

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Dual‐Atom‐Site Sn‐Cu/C₃N₄ Photocatalyst Selectively Produces Formaldehyde from CO₂ Reduction

Advanced Functional Materials, Год журнала: 2023, Номер 33(19)

Опубликована: Фев. 19, 2023

Abstract The solar‐driven catalytic reduction of CO 2 to value‐added chemicals is under intensive investigation. reaction pathway via *OCHO intermediate (involving adsorbed through O‐binding) usually leads the two‐electron transfer product HCOOH. Herein, a single‐atom catalyst with dual‐atom‐sites featuring neighboring Sn(II) and Cu(I) centers embedded in C 3 N 4 framework developed characterized, which markedly promotes production HCHO four‐electron pathway. optimized achieves high productivity 259.1 µmol g −1 selectivity 61% after 24 h irradiation, ascribed synergic role Sn(II)–Cu(I) dual‐atom sites that stabilize target intermediates for production. Moreover, *HCHO detected by situ Fourier transform infrared spectroscopy (CO stretches at 1637 cm ). This study provides unique example controls multi‐electron mechanisms photoconversion using heteronuclear dual‐atom‐site generate an uncommon (HCHO) reduction.

Язык: Английский

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Dual‐Active‐Sites Single‐Atom Catalysts for Advanced Applications

Small, Год журнала: 2023, Номер 19(42)

Опубликована: Июнь 15, 2023

Abstract Dual‐Active‐Sites Single‐Atom catalysts (DASs SACs) are not only the improvement of SACs but also expansion dual‐atom catalysts. The DASs contains dual active sites, one which is a single atomic site, and other site can be atom or type endowing with excellent catalytic performance wide range applications. categorized into seven types, including neighboring mono metallic SACs, bonded non‐bonded bridged asymmetric metal nonmetal combined space separated SACs. Based on above classification, general methods for preparation comprehensively described, especially their structural characteristics discussed in detail. Meanwhile, in‐depth assessments variety applications electrocatalysis, thermocatalysis photocatalysis provided, as well unique mechanism addressed. Moreover, prospects challenges related highlighted. authors believe great expectations this review will provide novel conceptual methodological perspectives exciting opportunities further development application

Язык: Английский

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