Journal ArticleDOI
Palladium carbide nanoparticles by gas flow reaction synthesis
TLDR
In this paper, a single process was used to synthesize palladium carbide nanoparticles, a metastable phase with carbon atoms on interstitial sites of metallic lattice, which allowed palladium metallic nanoparticles formed by vapor condensation in flowing argon carrier gas to immediately come in contact with acetone vapor.Abstract:
Nanoparticles of palladium carbide, a metastable phase with carbon atoms on interstitial sites of metallic lattice, were synthesized by a single process, which allows palladium metallic nanoparticles formed by vapor condensation in flowing argon carrier gas to immediately come in contact with acetone vapor. The average particle size observed by transmission electron microscopy is 5 nm and the geometric standard deviation of the distribution is 1.5.read more
Citations
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Journal ArticleDOI
Recent advances in the liquid-phase syntheses of inorganic nanoparticles.
TL;DR: The development of novel materials is a fundamental focal point of chemical research; and this interest is mandated by advancements in all areas of industry and technology.
Journal ArticleDOI
Carbon in palladium catalysts: A metastable carbide.
TL;DR: First-principles simulations show that carbon can dissolve into the metal because graphite formation is delayed by the large critical nucleus necessary for graphite nucleation.
Journal ArticleDOI
Synthesis of palladium nanoparticles with interstitial carbon by sonochemical reduction of tetrachloropalladate(II) in aqueous solution
Kenji Okitsu,Yoshiteru Mizukoshi,Hiroshi Bandow,Takao A. Yamamoto,Yoshio Nagata,Yasuaki Maeda +5 more
TL;DR: The metal particles of an interstitial solid solution of palladium carbide, PdCx (0 < x ≤ 0.15), were synthesized at room temperature in aqueous solution during the reduction of tetrachloropalladat.
Journal ArticleDOI
Microstructure of Pd/CeO2 Catalyst - Effect of High-Temperature Reduction in Hydrogen
Leszek Kępiński,Marek Wołcyrz +1 more
TL;DR: The effect of high temperature reduction (HTR) in hydrogen (up to 1180 K) on the microstructure of 9 wt.-% Pd CeO 2 catalyst was studied by HRTEM and XRD methods as mentioned in this paper.
Journal ArticleDOI
Quasi two-dimensional palladium nanoparticles encapsulated into graphite
Jürgen Walter,Hiroshi Shioyama +1 more
TL;DR: In this paper, the authors synthesize encapsulated palladium nanoparticles by reduction of a PdCl2-graphite intercalation compound precursor in a hydrogen atmosphere, using the carbon lattice as a template.
References
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Journal ArticleDOI
Ultrafine metal particles
TL;DR: In this paper, a statistical growth model based on the Central Limit Theorem has been formulated for liquid-like coalescence of particles; this theory accounts satisfactorily for all the data, as well as for most size distributions published in the literature.
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Formation of interstitial palladium-carbon phase by interaction of ethylene, acetylene, and carbon monoxide with palladium
TL;DR: In this paper, a phase Pd-C is formee quand Pd est chauffe dans une atmosphere d'ethylene, acetylene ou CO, and the processus fait intervenir le depot d'une surcouche carbonacee, suivie d'un diffusion activee des atomes de C a travers le reseau metallique.
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The Study of Metal Colloids Produced by Means of Gas Evaporation Technique. I. Preparation Method and Optical Properties in Ethanol
Keisaku Kimura,Shunji Bandow +1 more
TL;DR: In this article, three new methods for the preparation of metal colloid in organic solvent are presented: matrix isolation method, gas flow cold trap method and gas flow-solution trap method; the latter was found to give a good colloid solution for the optical measurements.
Journal ArticleDOI
A new phase in the Pd-C system formed during the catalytic hydrogenation of acetylene
J. Stachurski,A. Fra̧ckiewicz +1 more
TL;DR: In this article, the catalytic hydrogenation of acetylene was studied using X-ray diffraction and gas chromatography, and it was shown that carbon atoms penetrated into the palladium catalyst during the reaction.