Activation of oxygen on palladium nanocluster

Beletskaya, A.V.; Пичугина, Д. А.; Кузьменко, Н.Е.

doi:10.1134/s1995078011060048

Cited by 8 publications

(2 citation statements)

References 29 publications

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“…98 This catalyst having smaller nanoparticles than traditional catalysts of gold particles (*16 ± 19 nm) is structurally stable, environmentally safe and has a higher hydrogen after-burning coefficient. 108,109 As the number of atoms in the cluster decreases, the distance between the energy levels increases and the catalytic activity of nanoclusters sharply grows. Taking account of the temperature range of a catalytic reaction, it is possible to determine the optimal size of the clusters (for clusters comprising from 300 to 1000 atoms, it is 1.5 to 7.5 nm).…”

Section: V1 Fragmentation Of Cluster Catalystsmentioning

confidence: 99%

Stability and thermal evolution of transition metal and silicon clusters

Полухин¹,

Vatolin²

2015

Russ. Chem. Rev.

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ContentsRussian Chemical Reviews 84 (5) 498 ± 539 (2015) # 2015 Russian Academy of Sciences and Turpion Ltd V A Polukhin, N A Vatolin Russ. Chem. Rev. 84 (5) 498 ± 539 (2015) 499 { Structure designations: Ih is icosahedral, fcc is face-centred cubic, hcp is hexagonal close-packed, bcc is body-centred cubic, pc is primitive cubic; sph is sphalerite type. V A Polukhin, N A Vatolin Russ. Chem. Rev. 84 (5) 498 ± 539 (2015) V A Polukhin, N A Vatolin Russ. Chem. Rev. 84 (5) 498 ± 539 (2015)

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Section: V1 Fragmentation Of Cluster Catalystsmentioning

confidence: 99%

Stability and thermal evolution of transition metal and silicon clusters

Полухин¹,

Vatolin²

2015

Russ. Chem. Rev.

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“…Typical supported catalysts are quite complex and difficult to characterize in detail, and an important research thrust uses model catalysts to simplify the problem and allow important properties to be varied and measured in detail, to extract mechanistic insight. Among other approaches to tuning catalyst properties, using bi-or tri-metallic combinations [7,[19][20][21][22], or varying the size of the catalytic metal particles are common [2,[23][24][25][26][27][28]. Understanding the effects of particle size is complicated by the fact that there is typically a broad distribution of sizes present, and it is generally not possible to vary size independently, without also changing other properties such as metal loading or support structure.…”

Section: Introductionmentioning

confidence: 99%

Reprint of “Mass-selected supported cluster catalysts: Size effects on CO oxidation activity, electronic structure, and thermal stability of Pd /alumina (n≤ 30) model catalysts”

Kane

Roberts

Anderson

2015

International Journal of Mass Spectrometry

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a b s t r a c tAn intense, mass-selected cluster source for preparation of model supported clusters is described, and results are presented for cluster size effects on CO oxidation activity for Pd n clusters supported on alumina films grown on Re(0001) or Ta(110) single crystals. The electronic structure of the samples was probed by X-ray and UV photoelectron spectroscopy, and low energy ion scattering was used to probe binding morphology. The Pd n activity was monitored via both steady state and temperature-programmed reaction (TPR) methods. In both cases, the samples appear to be stable in repeated reaction cycles for temperatures up to 600 K. In the TPR experiments, CO oxidation activity per Pd atom varied by ∼40% between the most and least reactive clusters, while under steady state conditions, the activity varied by ∼55%, but with a different pattern of activity vs. size. The difference in the effects of cluster size is attributed to the fact that TPR experiments were done under conditions where the rate-limiting step is oxygen activation, while the steady-state reactivity conditions were most sensitive to the strength of CO binding. Two distinct types of CO binding were observed and characterized by a combination of temperature-programmed desorption (TPD), and temperature-dependent ISS (TD-ISS).

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Metal–Organic Framework Supported Palladium Nanoparticles: Applications and Mechanisms

Yang

Yao

Zhong

et al. 2019

Part & Part Syst Charact

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Heterogeneous palladium (Pd)‐based catalysts are extensively applied to improve the catalytic performance and/or expand the reaction scope in many catalytic processes, involving the cross‐coupling, hydrogenation, reduction, and oxidation reactions. Among them, metal–organic framework (MOF)‐supported Pd nanoparticles (Pd NPs) are becoming the most popular one for their excellent catalytic performance and reusable property. To motivate the development of this technology, the applications of MOF‐supported Pd NPs (Pd NPs/MOFs) in heterogeneous catalysis are critically summarized herein, including the hydrogenation reduction of nitro‐ and polyunsaturated compounds, synthesis of carbon–carbon (CC) bonds compounds, chromium (Cr(VI)) reduction, dehalogenation, alcohol oxidation, CO2 conversion, and CO oxidation. The influences of base, solvents, electron character of substitutes, and type of halogen on the catalytic performance are comprehensively discussed. Finally, the application prospects of Pd NPs/MOFs and existing shortcomings in the catalytic field are proposed.

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Activation of oxygen on palladium nanocluster

Cited by 8 publications

References 29 publications

Stability and thermal evolution of transition metal and silicon clusters

Stability and thermal evolution of transition metal and silicon clusters

Reprint of “Mass-selected supported cluster catalysts: Size effects on CO oxidation activity, electronic structure, and thermal stability of Pd /alumina (n≤ 30) model catalysts”

Metal–Organic Framework Supported Palladium Nanoparticles: Applications and Mechanisms

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