Journal ArticleDOI
Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities
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TLDR
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
Directional electron transfer in chromophore-labeled quantum-sized Au 25 clusters: Au25 as an electron donor
Mary Sajini Devadas,Kyuju Kwak,Jung‐Woo Park,Ji Hwan Choi,Chul Ho Jun,Ekkehard Sinn,Guda Ramakrishna,Dongil Lee +7 more
TL;DR: In this article, pyrene-functionalized Au25 (C6S) clusters were synthesized and characterized, and significant fluorescence quenching was observed for pyrene attached to Au25 clusters, suggesting strong excited-state interactions.
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Chirality transfer from gold nanocluster to adsorbate evidenced by vibrational circular dichroism
TL;DR: It is shown that an intrinsically chiral gold cluster can transfer its handedness to an achiral molecule adsorbed on its surface and this transfer is responsible for the preference of one of the two mirror images.
Journal ArticleDOI
Selective Visual Detection of TNT at the Sub-Zeptomole Level
TL;DR: The selective detection of 2,4,6trinitrotoluene (TNT) at the sub-zeptomole level is demonstrated through a combination of these strategies on a mesostructure using Au@SiO2@Ag15 MFs for analyte detection.
Journal ArticleDOI
Synthesis of DNA-templated fluorescent gold nanoclusters
TL;DR: Water-soluble and red-emitting gold nanoclusters synthesized with single-stranded DNA as a promising biotemplate and dimethylamine borane as a mild reductant display high stability at physiological pH condition, and thus, wide potential applications are anticipated.
Journal ArticleDOI
A chiral luminescent Au16 ring self-assembled from achiral components.
Shu-Yan Yu,Zhongxing Zhang,Eddie Chung-Chin Cheng,Yi-Zhi Li,Vivian Wing-Wah Yam,Hai-Ping Huang,Rongben Zhang +6 more
TL;DR: A luminescent supramolecular chiral Au16 ring with 4.822 nm perimeter that self-assembled from a tetrameric array of achiral Au2 units is described.