Journal ArticleDOI
Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities
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This review summarizes the major progress in the field, including the principles that permit atomically precise synthesis, new types of atomic structures, and unique physical and chemical properties ofatomically precise nanoparticles, as well as exciting opportunities for nanochemists to understand very fundamental science of colloidal nanoparticles.Abstract:
Colloidal nanoparticles are being intensely pursued in current nanoscience research. Nanochemists are often frustrated by the well-known fact that no two nanoparticles are the same, which precludes the deep understanding of many fundamental properties of colloidal nanoparticles in which the total structures (core plus surface) must be known. Therefore, controlling nanoparticles with atomic precision and solving their total structures have long been major dreams for nanochemists. Recently, these goals are partially fulfilled in the case of gold nanoparticles, at least in the ultrasmall size regime (1–3 nm in diameter, often called nanoclusters). This review summarizes the major progress in the field, including the principles that permit atomically precise synthesis, new types of atomic structures, and unique physical and chemical properties of atomically precise nanoparticles, as well as exciting opportunities for nanochemists to understand very fundamental science of colloidal nanoparticles (such as the s...read more
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Atomically Precise Clusters of Noble Metals: Emerging Link between Atoms and Nanoparticles
TL;DR: Luminescence in the visible region, especially by clusters protected with proteins, with a large Stokes shift, has been used for various sensing applications, down to a few tens of molecules/ions, in air and water.
Journal ArticleDOI
Atomically Precise Noble Metal Nanoclusters as Efficient Catalysts: A Bridge between Structure and Properties.
TL;DR: The model catalyst role of NCs in catalysis is illustrated from theoretical and experimental perspectives, particularly in electrocatalysis, photocatalysis, photoelectric conversion, and catalysis of organic reactions.
Journal ArticleDOI
Bottom-up precise synthesis of stable platinum dimers on graphene.
Huan Yan,Yue Lin,Hong Wu,Wenhua Zhang,Zhihu Sun,Hao Cheng,Wei Liu,Chunlei Wang,Junjie Li,Xiaohui Huang,Tao Yao,Jinlong Yang,Shiqiang Wei,Junling Lu +13 more
TL;DR: Pt2 dimers can be fabricated with a bottom–up approach on graphene using atomic layer deposition, through proper nucleation sites creation, Pt1 single-atom deposition and attaching a secondary Pt atom selectively on the preliminary one.
Journal ArticleDOI
Tailoring the photoluminescence of atomically precise nanoclusters.
Xi Kang,Manzhou Zhu +1 more
TL;DR: Promising applications of metal nanoclusters are reviewed, with particular focus on their potential to impact the fields of chemical sensing, bio-imaging, and bio-labeling, and scope for improvements and future perspectives of these novel nanomaterials are highlighted.
Journal ArticleDOI
Cyclic (Alkyl)(amino)carbenes (CAACs): Recent Developments
TL;DR: The most important results published up to the end of 2013 are briefly summarized, while the majority of this Review focuses on findings reported within the last three years.
References
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Journal ArticleDOI
Silver Nanoclusters: Single-Stage Scaleable Synthesis of Monodisperse Species and Their Chirooptical Properties†
Nicole Cathcart,Vladimir Kitaev +1 more
TL;DR: In this paper, a single-stage preparation with chiral thiols in aqueous solution was used to synthesize silver nanoclusters (AgNCs) with well-resolved electronic transitions in UV−vis spectra and chirooptical signatures.
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Dopant Location, Local Structure, and Electronic Properties of Au24Pt(SR)18 Nanoclusters
TL;DR: In this paper, element-specific X-ray spectroscopy results on the structure and bonding of Au24Pt, a thiolate-protected bimetallic nanocluster, were reported.
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Protonation-induced chromism of pyridylethynyl-appended [core+exo]-type Au8 clusters. Resonance-coupled electronic perturbation through π-conjugated group.
TL;DR: The results suggest that the resonance-coupled movement of the positive charge upon protonation is involved in the optical responses, where the formation of extended charged resonance structures causes significant perturbation effects on the electronic properties of the Au8 unit and also contributes to the high binding affinities.
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Chiral Gold and Silver Nanoclusters: Preparation, Size Selection, and Chiroptical Properties
TL;DR: In this paper, different properties of gold and silver nanoclusters (AuNCs and AgNCs) protected by the chiral ligands l-glutathione (L-GSH), and N-acetyl-l-cysteine (NALC) were studied.
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Glutathione-capped fluorescent gold nanoclusters for dual-modal fluorescence/X-ray computed tomography imaging
TL;DR: The synthesis of folic acid (FA)-conjugated glutathione (GSH)-capped gold nanoclusters (Au NCs) for dual mode fluorescence/X-ray computed tomography imaging of gastric cancer shows excellent photoluminescence properties and negligible cytotoxicity, and the applications of AuNCs@GSH could be extended and bring more benefits to nanotechnology as an ideal biomedical platform.