Ultrasmall metal nanoclusters as efficient luminescent probes for bioimaging DOI

Xinyue Dou,

Sariah Saalah, Chel‐Ken Chiam

et al.

Journal of Materials Chemistry B, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Ultrasmall metal nanoclusters (NCs, <2 nm) have emerged as a novel class of photoluminescent bioimaging probes. This review article examines how NC-based probe is designed with desired functionalities for applications.

Language: Английский

Deciphering Electrocatalytic Activity in Cu Nanoclusters: Interplay Between Structural Confinement and Ligands Environment DOI Creative Commons
Sourav Biswas,

Yamato Shingyouchi,

Maho Kamiyama

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Ligand-protected copper nanoclusters (Cu NCs) with atomic precision have emerged rapidly due to their fascinating structural architectures and versatile catalytic properties, making them ideal for investigating structure-activity relationships. Despite potential, challenges such as stability issues limited diversity restricted deeper exploration. In this study, three distinct Cu NCs are synthesized using a one-pot reduction strategy by carefully modifying reaction conditions. Intriguingly, the same p-toluenethiol ligand produces two different geometries, while varying ligands m-aminobenzethiol-yielded clusters similar geometric architectures. These evaluated electrocatalytic CO2 reduction, uncovering diverse activities product selectivity. Experimental theoretical analyses reveal that interplay between core structure confinement surface environment governs behavior. Specifically, Cu11 NC exhibits selectivity toward HCOOH production (FEHCOOH∼45% at -1.2 V vs RHE), whereas substituting m-aminobenzethiol shifted competitive side (FEH2∼82% RHE). Conversely, altering geometry of Cu18 retaining decreases (FEHCOOH∼35% findings highlight tunability tailored applications through precise control chemistry.

Language: Английский

Citations

0
Eight-Electron Copper-Hydride Nanoclusters: Synthesis, Structure, Alloying Chemistry and Photoluminescence DOI Creative Commons
Jing Sun,

Jiahe Liu,

Hai‐Feng Su

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The first copper-hydride nanocluster containing eight free electrons was isolated and characterized. introduction of Ag results in unexpected structural differences emission properties.

Language: Английский

Citations

0
Atomically Precise Cu Nanoclusters: Recent Advances, Challenges, and Perspectives in Synthesis and Catalytic Applications DOI Creative Commons

Mengyao Chen,

Chengyu Guo, Lubing Qin

et al.

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

Published: Dec. 3, 2024

Abstract Atomically precise metal nanoclusters are an emerging type of nanomaterial which has diverse interfacial metal–ligand coordination motifs that can significantly affect their physicochemical properties and functionalities. Among that, Cu have been gaining continuous increasing research attentions, thanks to the low cost, diversified structures, superior catalytic performance for various reactions. In this review, we first summarize recent progress regarding synthetic methods atomically modes between several typical ligands then discuss applications these with some explicit examples explain atomical-level structure–performance relationship. Finally, current challenges future perspectives critical thoughts elaborated. We hope review not only provide a whole picture advances synthesis nanoclusters, but also points out visions in rapidly booming field.

Language: Английский

Citations

3
Highly Selective Methanol Synthesis Using Electrochemical CO2 Reduction with Defect‐Engineered Cu58 Nanoclusters DOI Creative Commons
Sourav Biswas, Tomoya Tanaka, Haohong Song

et al.

Small Science, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Atomically precise copper nanoclusters (Cu NCs) exhibit significant potential as catalysts for the electrocatalytic reduction of CO 2 . However, range products achievable with these NCs has been somewhat constrained. This study presents an innovative design strategy to enhance catalytic activity Cu by engineering their active sites. These sites are formed here introducing defects on cubic through partial dislocation atoms at vertices, which creates surface ligand vacancies. further refines internal cationic geometry altering cuprophilic interactions, leading distinct modifications in edges and vertices geometry. unique Cu(I) atom arrangements within cluster effectively influence product specificity during electrochemical reduction. Density functional theory calculations correlate enhanced selectivity CH 3 OH [Cu 58 H 20 (SPr) 36 (PPh ) 7 ] 2+ (Pr = NC increased reactivity edge binding CHO intermediates, compared 8 (SEt) 6 (Et NCs. Thus, this work underscores tailored structural designs atomically nanocatalysts directing toward unconventional products.

Language: Английский

Citations

1
Superstructures of Copper Nanoclusters as NIR TADF Emitters: Solvent-dependent Optical and Morphological Modulation DOI
Sameeksha Agrawal,

Debanggana Shil,

Aakash Gupta

et al.

Nanoscale, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Self-assembled thiol-templated CuNCs display NIR-TADF emission which can be modulated by solvent, accompanied remarkable change in the morphology. The electronic structure of surface ligands also used to tailor properties CuNCs.

Language: Английский

Citations

0
Copper nanoclusters: emerging photoredox catalysts for organic bond formations DOI Creative Commons
Arunachalam Sagadevan, Kathiravan Murugesan, Osman M. Bakr

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(94), P. 13858 - 13866

Published: Jan. 1, 2024

Advancements in fine chemical synthesis and drug discovery continuously demand the development of new more efficient catalytic systems. In this regard, numerous transition metal-based catalysts have been developed successfully applied industrial processes. However, need for innovative catalyst systems to further enhance efficiency transformations applications persists. Metal nanoclusters (NCs) represent a distinct class ultra-small nanoparticles (<3 nm) characterized by precise number metal atoms coordinated with defined ligands. This structure confers abundant unsaturated active sites unique electronic optical properties, setting them apart from conventional or bulk metals. The well-defined monodisperse nature NCs make particularly attractive applications. Among these, copper-based emerged as versatile sustainable challenging organic bond-forming reactions. Their including natural abundance, accessible oxidation states, diverse ligand architectures, strong photophysical characteristics, contribute their growing prominence field. review, we discuss photocatalytic activities Cu-based nanoclusters, focusing on cross-coupling reactions (C-C C-N), click reactions, multicomponent couplings,

Language: Английский

Citations

0
Analogues Copper Nanoclusters (Cu16/17) with Two Electron Superatomic and Mixed Valence Copper(II)/Copper(I) and Copper(I)/Copper(0) Characters† DOI

Shibaditya Kumar,

Saikat Mishra,

Aniruddha Das

et al.

Nanoscale, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 14, 2024

The reported copper nanoclusters (Cu NCs) of either Cu

Language: Английский

Citations

0
Ultrasmall metal nanoclusters as efficient luminescent probes for bioimaging DOI

Xinyue Dou,

Sariah Saalah, Chel‐Ken Chiam

et al.

Journal of Materials Chemistry B, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Ultrasmall metal nanoclusters (NCs, <2 nm) have emerged as a novel class of photoluminescent bioimaging probes. This review article examines how NC-based probe is designed with desired functionalities for applications.

Language: Английский

Citations

0