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
Biicosahedral Gold Clusters [Au25(PPh3)10(SCnH2n+1)5Cl2]2+ (n = 2−18): A Stepping Stone to Cluster-Assembled Materials
Yukatsu Shichibu,Yuichi Negishi,Takahito Watanabe,Nirmalya K. Chaki,Hiroyuki Kawaguchi,Tatsuya Tsukuda +5 more
TL;DR: The chemical reaction between [Au11(PPh3)8Cl2]- and n-alkanethiol CnH2n+1SH (n = 2, 8, 10, 12, 14, 16, and 18) serendipitously yielded stable Au25 cluster compounds with the formula, [au25(Pph3)10(SCnH 2n+ 1)5Cl2]2] 2.
Journal ArticleDOI
Quantum-sized gold clusters as efficient two-photon absorbers.
TL;DR: Record high TPA cross-sections have been measured for quantum sized clusters making them suitable for two-photon imaging as well as other applications such as optical power limiting and lithography.
Journal ArticleDOI
The energetics and structure of nickel clusters: Size dependence
Charles L. Cleveland,Uzi Landman +1 more
TL;DR: In this paper, the authors explored the energy properties of nickel clusters over a broad size range and found that icosahedral clusters are favored for the smallest cluster sizes and that Marks' decahedra are favorable for intermediate sizes.
Journal ArticleDOI
One-pot synthesis of near-infrared fluorescent gold clusters for cellular fluorescence lifetime imaging.
Li Shang,Naghmeh Azadfar,Florian Stockmar,W. Send,Vanessa Trouillet,Michael Bruns,Dagmar Gerthsen,G. Ulrich Nienhaus,G. Ulrich Nienhaus +8 more
TL;DR: A facile strategy to synthesize water-soluble fluorescent gold nanoclusters (Au NCs) stabilized with the bidentate ligand dihydrolipoic acid (DHLA) is reported, making them promising imaging agents for biomedical and cellular imaging applications.
Journal ArticleDOI
Luminescent Ag7 and Ag8 Clusters by Interfacial Synthesis
TL;DR: Gram-scale syntheses of two luminescent silver clusters, protected by small molecules containing thiol groups, with well-defined molecular formulas, by interfacial synthesis are presented, promising in several other areas including semiconductor nanoparticles, two-dimensional superlattices, and 3D structures.