Microwave Quasi‐Solid State to Construct Strong Metal‐Support Interactions with Interfacial Electron‐Enriched Ru for Anion Exchange Membrane Electrolysis

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(8)

Published: Dec. 28, 2023

Abstract Regulating the metal‐support interaction of anchored metal nanoclusters is recognized as valid approach to optimize electrocatalytic performance through tuning interfacial electronic structure. However, developing novel support and understanding electron accumulation on modulating reaction kinetics are still elusive. Herein, highly‐dispersed Ruthenium (Ru) onto phosphorous doped molybdenum boride (Ru/P‐MoB) developed ultrafast microwave‐plasma (60 s) approach. The synthesized Ru/P‐MoB impressively promote hydrogen evolution with low overpotentials 34, 45, 40 mV drive 10 mA cm −2 in alkaline freshwater, seawater acid media. Specially, it presents superior turnover frequency mass/specific activity relative Pt/C, Ru/C, Ru/MoB. Moreover, anion exchange membrane (AEM) electrolyzer cell based can achieve 500 1000 small voltages 1.71 1.78 V good durability. Experimental density functional theoretical (DFT) analysis reveal that strong interactions (Ru─Mo Ru─P bonds) generated electron‐enriched Ru, then favoring water‐molecule adsorption/dissociation optimal H intermediate adsorption free energy. This work provides designing avenue exploit electrocatalysts outstanding catalytic under high current at practical high‐temperature.

Language: Английский

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Electrocatalytic CO₂ Reduction with Atomically Precise Au₁₃ Nanoclusters: Effect of Ligand Shell on Catalytic Performance

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(6), P. 4155 - 4163

Published: March 7, 2024

Supported gold nanoclusters of the formula [Au13(L)5Cl2]3+ where L = N-heterocyclic carbene (NHC) or phosphine ligands are examined in electrocatalytic CO2 reduction reaction (eCO2RR) a membrane electrode assembly cell configuration. Gold bearing bisNHC shown to exhibit improved catalytic performance compared with diphosphine-stabilized after activation at optimum treatment temperatures. The thermal properties have significant impact on their activity. Thermogravimetric analysis, UV–vis absorption spectroscopy, and X-ray photoelectron spectroscopy revealed that [Au13(diphosphine)5Cl2]3+ results complete loss diphosphine while [Au13(bisNHC)5Cl2]3+ show stepwise partial removal ligands. We propose enables efficient clusters conserving core structure. This leads implication intact retaining least some coordination environment more active than ligand-free clusters.

Language: Английский

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Recent progress in atomically precise metal nanoclusters for photocatalytic application

Nanoscale Horizons, Journal Year: 2024, Volume and Issue: 9(8), P. 1262 - 1278

Published: Jan. 1, 2024

This review summarizes the recent progress in atomically precise metal nanoclusters various photocatalytic applications and highlights strategy for constructing nanocluster-based heterostructures to improve stability catalytic activity.

Language: Английский

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Fluorescent metal nanoclusters: prospects for photoinduced electron transfer and energy harvesting

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(25), P. 3370 - 3378

Published: Jan. 1, 2024

Research on noble metal nanoclusters (MNCs) (elements with filled electron d-bands) is progressing forward because of the extensive and extraordinary chemical, optical, physical properties these materials. Because ultrasmall size MNCs (typically within 1-3 nm), they can be applied in areas nearly all possible scientific domains. The greatest advantage tunability that imposed, not only their structures, but also physical, biological properties. Nowadays, are very effectively used as energy donors acceptors under suitable conditions hence act harvesters solar cells, semiconductors, biomarkers. In addition, ultrafast photoinduced transfer (PET) practised using various circumstances. Herein, we have focused harvesting phenomena Au-, Ag-, Cu-based elaborated different ways to apply them.

Language: Английский

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Diselenophosphate Ligands as a Surface Engineering Tool in PdH-Doped Silver Superatomic Nanoclusters

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(5), P. 2766 - 2775

Published: Jan. 22, 2024

The first hydride-doped Pd/Ag superatoms stabilized by selenolates are reported: [PdHAg19(dsep)12] [dsep = Se2P(OiPr)2] 1 and [PdHAg20(dsep)12]+ 2. was derived from the targeted transformation of [PdHAg19(dtp)12] [dtp S2P(OiPr)2] ligand exchange, whereas 2 obtained addition trifluoroacetic acid to 1, resulting in a symmetric redistribution capping silver atoms. transformations all achieved while retaining an 8-electron superatomic configuration. VT-NMR attests good stability NCs solution, single-crystal X-ray diffraction reveals crucial role that interstitial hydride plays directing position total structures reported alongside their electronic optical properties. phosphorescent with lifetime 73 84 μs at 77 K, respectively. antibacterial activity data for bimetallic nanoclusters also reported.

Language: Английский

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A comprehensive review of atomically precise metal nanoclusters with emergent photophysical properties towards diverse applications

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 13, 2024

Ligand-protected metal nanoclusters are an emerging class of nanomaterials at the interface atomic and plasmonic regimes with unique photophysical electrochemical properties, leading to diverse applications.

Language: Английский

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Structure‐Activity Relationships of the Structural Analogs Au8Cu1 and Au8Ag1 in the Electrocatalytic CO2 Reduction Reaction

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(34)

Published: June 7, 2024

Owing to the significant attention directed toward alloy metal nanoclusters, it is crucial explore relationship between their structures and performance during electrocatalytic CO

Language: Английский

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Hydrogen production catalysed by atomically precise metal clusters

Nanoscale, Journal Year: 2024, Volume and Issue: 16(29), P. 13834 - 13846

Published: Jan. 1, 2024

Atomically precise metal clusters for electrocatalytic and photocatalytic H 2 production are systematically summarized, which is expected to provide new insights into the design of high-performance catalysts.

Language: Английский

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Size‐Dependent Carbon Dioxide Reduction Activity of Copper Nanoparticle and Nanocluster Electrocatalysts

ChemNanoMat, Journal Year: 2024, Volume and Issue: 10(5)

Published: March 12, 2024

Abstract The electrochemical carbon dioxide (CO 2 ) reduction reaction (CRR, which can convert CO into useful compounds at room temperature and ambient pressure by using electricity derived from renewable energy source), has been attracting attention in recent years. This is because it compounds, pertinent to establishing a next‐generation recycling‐oriented society. However, further improvement of the electrocatalyst required improve its activity, selectivity, durability. Among these, copper (Cu) synthesize various hydrocarbons most studied for CRR over many In particular, regarding ligand‐protected Cu particles CRR, size, shape, ligands prepared chemical be precisely controlled. this review, we summarize previous research on size‐dependence (nanoparticles nanoclusters) liquid‐phase reduction, discuss current status these studies researchers CRR.

Language: Английский

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Local structural environment of single-atom catalysts

Inorganic Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 11(1), P. 29 - 49

Published: Nov. 9, 2023

In this review, we discuss the catalytically active sites of single-atom catalysts regulated by modulating metal single-atoms and coordination environment, as well summarizing major challenges development opportunities for field SACs.

Language: Английский

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