Growth and stability of Pt nanoclusters from 1 to 50 atoms on h-BN/Rh(111)
Literature Information
Fabian Düll, Manuel Meusel, Florian Späth, Simon Schötz, Udo Bauer, Philipp Bachmann, Johann Steinhauer, Hans-Peter Steinrück, Andreas Bayer, Christian Papp
The h-BN nanomesh on Rh(111) is used as eggbox-like template for the formation of arrays of Pt nanoclusters with a narrow size distribution. Nanoclusters with sizes from 1 up to 50 atoms are prepared simultaneously in a wedge-like structure by depositing a coverage gradient on the h-BN nanomesh, and thus can be investigated under identical conditions. We studied the preparation and properties of these Pt nanoclusters of different size in situ by high-resolution X-ray photoelectron spectroscopy and scanning tunneling microscopy. For a Pt coverage of 0.1 ML, all pores of the h-BN nanomesh are filled with nanoclusters with a remarkably uniform cluster size of ≈12 Pt atoms per pore, and high stability up to 400 K. Above 0.2 ML Pt, the clusters are less stable. The coverage dependent analysis shows that for Pt coverages below 0.1 ML, the number of nanoclusters is smaller – and the number of empty pores higher – than expected for a simple hit and stick mechanism. We assign this behavior to an initially higher mobility of the Pt atoms in a hot precursor state.
Recommended Journals
Related Literature
Synthesis and evaluation of N,S-compounds as chiral ligands for transfer hydrogenation of acetophenone
Jenny K. Ekegren, Peter Roth, Klas Källström, Tibor Tarnai, Pher G. Andersson
DOI: 10.1039/B208907F
Iron-catalysed carbene-transfer reactions of diazo acetonitrile
Claire Empel, Katharina J. Hock, Rene M. Koenigs
DOI: 10.1039/C8OB01991F
Catalytic asymmetric Henry reactions of silyl nitronates with aldehydes
Tine Risgaard, Kurt V. Gothelf, Karl Anker Jørgensen
DOI: 10.1039/B208859M
An effective preparation of both 1,3-diketones and nitriles from alkynones with oximes as hydroxide sources
Pei Chen, Qian-Qian Zhang, Jia Guo, Lu-Lu Chen, Yan-Bo Wang, Xiao Zhang
DOI: 10.1039/C8OB01861H
Preparation of polysubstituted dihydrofurans through a PhI(OAc)2-promoted haloenolcyclization of olefinic dicarbonyl compounds
Ji Liu, Qing-Yun Liu, Xing-Xiao Fang, Gong-Qing Liu, Yong Ling
DOI: 10.1039/C8OB02161A
Synthesis of meso-substituted porphyrins carrying carboranes and oligo(ethylene glycol) units for potential applications in boron neutron capture therapy
Christophe Frixa, Mary F. Mahon, Andrew S. Thompson, Michael D. Threadgill
DOI: 10.1039/B209534C
Catalytic properties of 4,5-bridged proline methano- and ethanologues in the Hajos–Parrish intramolecular aldol reaction
Sofiane Hocine, Gilles Berger, K. N. Houk, Stephen Hanessian
DOI: 10.1039/D1QO01688A
Fe-Catalyzed tandem cyclization for the synthesis of 3-nitrofurans from homopropargylic alcohols and Al(NO3)3·9H2O
Ting Wang, Yong Jiang, Yanyan Wang, Rulong Yan
DOI: 10.1039/C8OB01184B
Copper-catalyzed oxidative multicomponent reaction: synthesis of imidazo fused heterocycles with molecular oxygen
Xianwei Li, Tianzhang Wang, Yu-Jing Lu, Shaomin Ji, Yanping Huo, Bifu Liu
DOI: 10.1039/C8OB01532E
Differential effects of bromination on substrates and inhibitors of kynureninase from Pseudomonas fluorescens
Christian Heiss, Jay Anderson
DOI: 10.1039/B208910F
You might also like
Is 6-(3-Fluorophenyl)picolinic acid (CAS: 887982-40-3) safe?
6-(3-Fluorophenyl)picolinic acid is generally considered safe for laboratory use...
What industries use (3R)-3-Pyrrolidinol (CAS: 2799-21-5)?
(3R)-3-Pyrrolidinol is used in the pharmaceutical industry as a precursor for dr...
What precautions should be taken when handling (4R,5R)-4,5-Diethoxycarbonyl-2,2-dimethyldioxolane (CAS: 59779-75-8)?
When handling (4R,5R)-4,5-Diethoxycarbonyl-2,2-dimethyldioxolane (CAS: 59779-75-...
How is 1-(6-Chloroimidazo[1,2-b]pyridazin-3-yl)ethanone (CAS: 90734-71-7) typically synthesized?
1-(6-Chloroimidazo[1,2-b]pyridazin-3-yl)ethanone is often synthesized via a mult...
What is the market or research trend for N-Ethyl-3,4-dimethylbenzylamine (CAS: 39180-83-1)?
The market for N-Ethyl-3,4-dimethylbenzylamine (CAS: 39180-83-1) remains steady,...
What is Tert-butyl 3-(pyrrolidin-1-yl)azetidine-1-carboxylate (CAS: 1019008-21-9)?
Tert-butyl 3-(pyrrolidin-1-yl)azetidine-1-carboxylate is a chemical compound wit...
What regulatory guidelines apply to 1-Bromo-3-chloro-2,4-dimethoxybenzene (CAS: 1228956-93-1)?
1-Bromo-3-chloro-2,4-dimethoxybenzene (CAS: 1228956-93-1) falls under the classi...
Is 8-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS: 1368622-07-4) safe?
The safety of 8-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS: 1368622-07...
Is Benzyl [(3S)-2,6-dioxo-3-piperidinyl]carbamate (CAS: 22785-43-9) safe?
Benzyl [(3S)-2,6-dioxo-3-piperidinyl]carbamate is generally safe when handled wi...
How should 1-{[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonyl}pyrrolidine (CAS: 928657-21-0) be stored?
1-{[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonyl}pyrrolidine s...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














