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Chapter 5 - Atomically Precise Gold Nanoclusters: Synthesis and Catalytic Application

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Chapter 5 - Atomically Precise Gold Nanoclusters: Synthesis and Catalytic Application

Auteurs : Gao Li [États-Unis] ; Rongchao Jin [États-Unis]

Source :

RSC Catalysis Series [ 1757-6725 ]

RBID : ISTEX:B142B15B30E550A81186EBD3527DDE3F2DF0E9ED

English descriptors

KwdEn :
- Atomic level, Atomically, Benzaldehyde, Bicyclic ketone, Catalysis, Catalyst, Catalytic, Catalytic activity, Catalytic application, Catalytic oxidation, Catalytic performance, Catalytic reaction, Catalytic reactions, Chem, First step, Gold atoms, Gold nanoclusters, Great promise, Growth process, High conversion, Hydrogenation, Iodobenzene, Ketone, Ligand, Nanocluster, Nanocluster catalyst, Nanocluster catalysts, Nanoclusters, Nanoparticles, Oxidant, Phenylacetylene, Pretreatment, Qian, Reactant, Room temperature, Selective oxidation, Selectivity, Size distribution, Sonogashira reaction, Styrene epoxide, Sulfide, Tbhp, Thermal treatment, Thermogravimetric analysis, Thiolate, Thiolate ligands, Water vapor.
Teeft :
- Atomic level, Atomically, Benzaldehyde, Bicyclic ketone, Catalysis, Catalyst, Catalytic, Catalytic activity, Catalytic application, Catalytic oxidation, Catalytic performance, Catalytic reaction, Catalytic reactions, Chem, First step, Gold atoms, Gold nanoclusters, Great promise, Growth process, High conversion, Hydrogenation, Iodobenzene, Ketone, Ligand, Nanocluster, Nanocluster catalyst, Nanocluster catalysts, Nanoclusters, Nanoparticles, Oxidant, Phenylacetylene, Pretreatment, Qian, Reactant, Room temperature, Selective oxidation, Selectivity, Size distribution, Sonogashira reaction, Styrene epoxide, Sulfide, Tbhp, Thermal treatment, Thermogravimetric analysis, Thiolate, Thiolate ligands, Water vapor.

Abstract

Atomically precise gold nanoclusters protected by thiolate ligands, Aun(SR)m, have emerged as a new class of nanomaterial in recent years. Many different sizes of Aun(SR)m nanoclusters have been synthesized and some have been crystallographically characterized. These atomically precise Aun(SR)m nanoclusters exhibit strong electron-energy quantization effects due to their ultra-small size (1–2 nm diameter), in contrast with the continuous electronic conduction band in metallic gold nanoparticles. These unique nanoclusters have also been demonstrated to be promising catalysts for a wide range of reactions, such as selective oxidation and hydrogenation, and carbon–carbon coupling reactions. These atomically precise Aun(SR)m nanoclusters (especially Au25(SCH2CH2Ph)18) can serve as new model catalysts and provide an opportunity to correlate the catalytic properties with the intrinsic structure of gold nanoclusters, and such structure–property correlation offers exciting insights into the mechanistic aspects of gold nanocluster-catalyzed reaction processes.

Url:

https://api.istex.fr/document/B142B15B30E550A81186EBD3527DDE3F2DF0E9ED/fulltext/pdf

DOI: 10.1039/9781782628439-00123

Affiliations:

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Le document en format XML

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<front><div type="abstract">Atomically precise gold nanoclusters protected by thiolate ligands, Aun(SR)m, have emerged as a new class of nanomaterial in recent years. Many different sizes of Aun(SR)m nanoclusters have been synthesized and some have been crystallographically characterized. These atomically precise Aun(SR)m nanoclusters exhibit strong electron-energy quantization effects due to their ultra-small size (1–2 nm diameter), in contrast with the continuous electronic conduction band in metallic gold nanoparticles. These unique nanoclusters have also been demonstrated to be promising catalysts for a wide range of reactions, such as selective oxidation and hydrogenation, and carbon–carbon coupling reactions. These atomically precise Aun(SR)m nanoclusters (especially Au25(SCH2CH2Ph)18) can serve as new model catalysts and provide an opportunity to correlate the catalytic properties with the intrinsic structure of gold nanoclusters, and such structure–property correlation offers exciting insights into the mechanistic aspects of gold nanocluster-catalyzed reaction processes.</div>
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Chapter 5 - Atomically Precise Gold Nanoclusters: Synthesis and Catalytic Application

Chapter 5 - Atomically Precise Gold Nanoclusters: Synthesis and Catalytic Application

Source :

English descriptors

Abstract

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