Tailoring silver nanoclusters <i>via</i> doping: advances and opportunities

Yang, Jie; Pang, Runqiang; Song, Dongpo; Li, Man‐Bo

doi:10.1039/d1na00077b

Cited by 29 publications

(20 citation statements)

References 62 publications

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“…These considerations are even more dramatic when two different metal precursors are engaged, rendering the rational preparation of heterobimetallic entities extremely challenging. Postmodification strategies, such as doping of monometallic clusters with heterometal atoms, − or rearrangement of two independently synthesized monometallic clusters, − are emerging approaches that have attracted substantial interest recently, but so far are limited to thiolate or carbonyl metal clusters. Lability phenomena and metal exchange strategies in polyhydride metal clusters are much less investigated to date.…”

Section: Introductionmentioning

confidence: 99%

Rational Preparation of Well-Defined Multinuclear Iridium–Aluminum Polyhydride Clusters and Comparative Reactivity

et al. 2022

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We report an original alkane elimination approach, entailing the protonolysis of triisobutylaluminium by the acidic hydrides from Cp*IrH4. This strategy allows access to a series of well-defined tri-and tetranuclear iridium aluminium polyhydride clusters, depending on the stoichiometry: 3) and [(Cp*IrH3)3Al] (4). Contrary to most transition metal aluminohydride complexes which can be considered as [AlHx+3] xaluminates and LnM + moieties, the situation here is reversed: these complexes have original structures which are best described as [Cp*IrHx] n-iridate units surrounding cationic Al(III) fragments. This is corroborated by reactivity studies, which show that the hydrides are always retained at the iridium sites and that the [Cp*IrH3] -moieties are labile and can be transmetallated to yield potassium ([KIrCp*H3], 8) or silver (([AgIrCp*H3]n, 10) derivatives of potential synthetic interest. DFT calculations show that the bonding situation can vary in these systems, from 3-centre 2-electron hydride-bridged Lewis adducts of the form Ir-H⇀Al, to direct polarized metal-metal interaction from donation of d-electrons of Ir to the Al metal, and both types of interactions are at place to some extent in each of these clusters.

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Section: Introductionmentioning

confidence: 99%

Rational Preparation of Well-Defined Multinuclear Iridium–Aluminum Polyhydride Clusters and Comparative Reactivity

et al. 2022

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“…11 The use of dithiolated molecules allows for exploring different staple motifs (as compared to those obtained with single thiolated molecules) and therefore adds some versatility to doping strategies. Several experimental studies showed that doping of silver nanoclusters with dithiolated molecules with heteroatoms present enhanced catalytic activity, photoluminescence (PL) and stability, and due to synergistic effects, 27 Van der Linden et al demonstrated such enhanced PL and stability by doping Ag 29 nanoclusters capped with lipoic acid with Au. 28 On the other hand, Bootharaju et al were able to perform doping of Ag 29 clusters with a single Pt atom, i.e., leading to enhanced excited-state lifetime and PL intensity.…”

Section: ■ Introductionmentioning

confidence: 99%

Effects of Single Platinum Atom Doping on Stability and Nonlinear Optical Properties of Ag₂₉ Nanoclusters

et al. 2022

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The properties of atomically precise noble metal nanoclusters can be modified by the addition of other metals, which may offer augmented characteristics, making them more suitable for real-life applications. In this work, we report the effects of single platinum atom doping of a class of atomically precise silver nanoclusters protected by dithiolated ligands on their optical properties both in linear and nonlinear optical (NLO) regimes and on their stability over time. Pt doping of Ag29 preserves their NLO properties (in particular two-photon excited photoluminescence).

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“…[70][71][72][73] Heteroatomdoped metal NCs are highly desirable to get some clues about the effect of doping on the electronic structure and catalytic properties. [74][75][76] Furthermore, due to the ultrasmall size of NCs, the structure and physicochemical properties of NCs are highly sensitive to their composition/structure. Even the introduction, removal, or replacement of a metal atom will cause dramatic changes in its properties.…”

Section: Doping/alloying Effectmentioning

confidence: 99%

The Factors Dictating Properties of Atomically Precise Metal Nanocluster Electrocatalysts

Xiang

Liu

Cheng

et al. 2022

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Metal nanoparticles occupy an important position in electrocatalysis. Unfortunately, by using conventional synthetic methodology, it is a great challenge to realize the monodisperse composition/structure of metal nanoparticles at the atomic level, and to establish correlations between the catalytic properties and the structure of individual catalyst particles. For the study of well‐defined nanocatalysts, great advances have been made for the successful synthesis of nanoparticles with atomic precision, notably ligand‐passivated metal nanoclusters. Such well‐defined metal nanoclusters have become a type of model catalyst and have shown great potential in catalysis research. In this review, the authors summarize the advances in the utilization of atomically precise metal nanoclusters for electrocatalysis. In particular, the factors (e.g., size, metal doping/alloying, ligand engineering, support materials as well as charge state of clusters) affecting selectivity and activity of catalysts are highlighted. The authors aim to provide insightful guidelines for the rational design of electrocatalysts with high performance and perspectives on potential challenges and opportunities in this emerging field.

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Tailoring silver nanoclusters via doping: advances and opportunities

Abstract: Atomically precise noble metal nanoclusters (espically Au and Ag) have been pursued due to their fascinating molecular-like properties. In spite of the significant progress of Au nanoclusters (NCs), the structure...

Cited by 29 publications

References 62 publications

Rational Preparation of Well-Defined Multinuclear Iridium–Aluminum Polyhydride Clusters and Comparative Reactivity

Rational Preparation of Well-Defined Multinuclear Iridium–Aluminum Polyhydride Clusters and Comparative Reactivity

Effects of Single Platinum Atom Doping on Stability and Nonlinear Optical Properties of Ag₂₉ Nanoclusters

The Factors Dictating Properties of Atomically Precise Metal Nanocluster Electrocatalysts

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Tailoring silver nanoclusters via doping: advances and opportunities

Abstract: Atomically precise noble metal nanoclusters (espically Au and Ag) have been pursued due to their fascinating molecular-like properties. In spite of the significant progress of Au nanoclusters (NCs), the structure...

Cited by 29 publications

References 62 publications

Rational Preparation of Well-Defined Multinuclear Iridium–Aluminum Polyhydride Clusters and Comparative Reactivity

Rational Preparation of Well-Defined Multinuclear Iridium–Aluminum Polyhydride Clusters and Comparative Reactivity

Effects of Single Platinum Atom Doping on Stability and Nonlinear Optical Properties of Ag29 Nanoclusters

The Factors Dictating Properties of Atomically Precise Metal Nanocluster Electrocatalysts

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Effects of Single Platinum Atom Doping on Stability and Nonlinear Optical Properties of Ag₂₉ Nanoclusters