Near‐Monodisperse Tetrahedral Rhodium Nanoparticles on Charcoal: The Shape‐Dependent Catalytic Hydrogenation of Arenes

Park, Kang Hyun; Jang, Kwonho; Kim, Hae Jin; Son, Seung Uk

doi:10.1002/anie.200603961

Cited by 181 publications

(123 citation statements)

References 36 publications

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“…The field is also of interest in relation to hydrogen storage. 5 The hydrogenation of benzene and arenes is generally accomplished using heterogeneous catalysts almost exclusively, 4a,6 molecular catalysts immobilized on heterogeneous surfaces, 7 supported nanoparticle, 8 or soluble nanoparticle 9 systems, sometimes inadvertently derived from molecular precursors, 10 represents an important industrial catalytic transformation, particularly for the production of cleaner-burning, low-aromatic diesel fuels. 4a In this paper we report the catalytic activity of iridium complexes immobilized on functionalized Zr-MOF in the hydrogenation of arenes.…”

Section: Introductionmentioning

confidence: 99%

Post-functionalized iridium–Zr-MOF as a promising recyclable catalyst for the hydrogenation of aromatics

et al. 2014

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Section: Introductionmentioning

confidence: 99%

Post-functionalized iridium–Zr-MOF as a promising recyclable catalyst for the hydrogenation of aromatics

et al. 2014

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“…36 As shown in Fig. 5A-B, by controlling the temperature and selecting an appropriate rhodium precursor, Rh tetrahedral (4.9 nm) and sphere-like particles (4.8 nm) have been obtained.…”

Section: Rh Ag and Aumentioning

confidence: 95%

Morphology-dependent nanocatalysis: metal particles

2011

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The rapid development of materials science now enables tailoring of metal and metal oxide particles with tunable size and shape at the nanometre level. As a result, nanocatalysis is undergoing an explosive growth, and it has been seen that the size and shape of a catalyst particle tremendously affects the reaction performance. The size effect of metal nanoparticles has been interpreted in terms of the variation in geometric and electronic properties that governs the adsorption and activation of the reactants as well as the desorption of the products. At the same time, it has been verified that the morphology of a catalyst particle, determined by the exposed crystal planes, also considerably affects the catalytic behavior. This is termed as morphology-dependent nanocatalysis: a catalyst particle with an anisotropic shape alters the reaction performance by selectively exposing specific crystal facets. This perspective article initially surveys the recent progress on morphology-dependent nanocatalysis of precious metal particles to emphasise the chemical nature of the morphology effect. Then, the fabrication of transition metal particles with controllable size/morphology is examined, and their shape is correlated with their catalytic properties, with the aim to clarify the structure-reactivity relationship. Finally, the future outlook presents our personal perspectives on the concept of morphology-dependent nanocatalysis of metal particles, which is a rapidly growing topic in heterogeneous catalysis.

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“…The catalytic activity of transition metal nanoparticles varies depending on the substrate [2]. The shape dependence of the catalytic activity of Rh nanoparticles has been previously investigated [7].…”

Section: Introductionmentioning

confidence: 99%

CO Oxidation of Au–Pt Nanostructures: Enhancement of Catalytic Activity of Pt Nanoparticles by Au

et al. 2009

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The CO oxidation activity of Pt deposited on Ta 2 O 5 /Ta was studied with various amounts of Au postdeposited on Pt/Ta 2 O 5 /Ta. For Pt nanoparticles with a mean size of 2-4 nm, an enhancement in the CO oxidation activity with increasing amount of post-deposited Au was found. The mixed Au-Pt nanoparticles with sizes in the range of 2-4 nm exhibited higher stability than the bare Au nanoparticles with a similar size range. In contrast to the results obtained with the Pt nanoparticles, the catalytic activity of a thicker Pt film gradually decreased with increasing amount of Au deposited. Based on the CO desorption experiments, it is suggested that the surface of the catalytically active Au-Pt bimetallic structures consists of both Au and Pt sites.

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Near‐Monodisperse Tetrahedral Rhodium Nanoparticles on Charcoal: The Shape‐Dependent Catalytic Hydrogenation of Arenes

Cited by 181 publications

References 36 publications

Post-functionalized iridium–Zr-MOF as a promising recyclable catalyst for the hydrogenation of aromatics

Post-functionalized iridium–Zr-MOF as a promising recyclable catalyst for the hydrogenation of aromatics

Morphology-dependent nanocatalysis: metal particles

CO Oxidation of Au–Pt Nanostructures: Enhancement of Catalytic Activity of Pt Nanoparticles by Au

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