Results 171 to 180 of about 4,629,960 (206)
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Kinetics and Catalysis, 2020
The interaction of palladium nanoparticles (average size, ∼3 nm) deposited on the surface of highly oriented pyrolytic graphite (HOPG) with nitrogen dioxide at room temperature and a pressure of 10–6 or 10–5 mbar was studied by X-ray photoelectron spectroscopy (XPS). It was shown that the structure of several surface graphene layers was destroyed under
Valery Bukhtiyarov +2 more
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The interaction of palladium nanoparticles (average size, ∼3 nm) deposited on the surface of highly oriented pyrolytic graphite (HOPG) with nitrogen dioxide at room temperature and a pressure of 10–6 or 10–5 mbar was studied by X-ray photoelectron spectroscopy (XPS). It was shown that the structure of several surface graphene layers was destroyed under
Valery Bukhtiyarov +2 more
exaly +2 more sources
Electrochemistry at Highly Oriented Pyrolytic Graphite (HOPG): Toward a New Perspective
Advances in Electrochemical Science and Engineering, 2015 This chapter is concerned with electrochemistry at, and of, highly oriented pyrolytic graphite (HOPG), a material that has been studied intermittently for several decades, but which is of enduring interest particularly as a comparison to other types of ...
Aleix Guell, Sze-Yin Tan, Guohui Zhang
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LiC6 Phase Mobility in Highly Oriented Pyrolytic Graphite (HOPG)
ECS Meeting Abstracts, 2022Graphite, serving as the lithium host structure, is still the main component of the anode active material in today's commercial lithium-ion batteries [1]. Yet, the determination of solid diffusion coefficient of lithium in graphite has so far proved difficult, which is reflected by the observation that the values published in the literature vary ...
Simon Helmer +3 more
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Synthetic Metals, 1986
Abstract The reaction of virgin HOPG with K vapour has been studied by real-time neutron diffractometry. A regular staging process appears to start at stage n = 5. At earlier times, a highly disordered phase exists. Evidence for the formation of stages with n = 3, 4 at the very onset of the reaction was also obtained.
C. Riekel, A. Hamwi, Ph. Touzain
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Abstract The reaction of virgin HOPG with K vapour has been studied by real-time neutron diffractometry. A regular staging process appears to start at stage n = 5. At earlier times, a highly disordered phase exists. Evidence for the formation of stages with n = 3, 4 at the very onset of the reaction was also obtained.
C. Riekel, A. Hamwi, Ph. Touzain
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X-ray study of planar defects in highly oriented pyrolytic graphite (HOPG)
Acta Crystallographica Section A Foundations of Crystallography, 1987A detailed X-ray study of HOPG reveals extensive wings on the 00.l Bragg reflections whose width in a scan normal to 00.l is comparable to the mosaic spread. These wings, which are absent in single-crystal profiles, are attributed to rotational or twist (T) defects between perfect substacks of pyrolyzed graphite.
X. B. Kan +3 more
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Scattering Dynamics of Nitromethane and Methyl Formate on Highly Oriented Pyrolytic Graphite (HOPG)
The Journal of Physical Chemistry C, 2018The gas–surface scattering dynamics of nitromethane (CH3NO2) and methyl formate (HCOOCH3) on a highly oriented pyrolytic graphite (HOPG) surface have been investigated as part of a broader effort to evaluate the efficacy of a funnel-like neutral gas concentrator that has been proposed as a mass spectrometer inlet for the characterization of tenuous ...
Vanessa J. Murray +3 more
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Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2003
Abstract Slow Ar 8+ irradiation and the following electron injection creates a non-conductive area to a depth of a few nanometers on a highly oriented pyrolytic graphite surface (HOPG). The annealing of the sample in a hydrogen atmosphere stabilizes the Ar 8+ impact area, which results in the field emission from the impact region.
Y. Koguchi +6 more
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Abstract Slow Ar 8+ irradiation and the following electron injection creates a non-conductive area to a depth of a few nanometers on a highly oriented pyrolytic graphite surface (HOPG). The annealing of the sample in a hydrogen atmosphere stabilizes the Ar 8+ impact area, which results in the field emission from the impact region.
Y. Koguchi +6 more
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Galvanomagnetic Properties Of Asf5 -Intercalated Highly-Oriented Pyrolytic Graphite (HOPG)
Molecular Crystals and Liquid Crystals, 1985Due to the anisotropy of the conductivity in AsF5-intercalated HOPG, eddy current methods have to be used for the measurement of transport effects. The measurements yield carrier concentration, mobility and charge transfer for C8nAsF5 with n=l-4 at temperatures between 4.2K and 300K.
Lang, W., Philipp, A., Seeger, K.
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Molecular behavior of the aptamer HJ24 self-assembled on highly oriented pyrolytic graphite (HOPG)
Science China Chemistry, 2015Nucleic acid sensing analysis has been widely applied to the fields of food quality control, environmental monitoring, and medical diagnosis. A key step in developing effective DNA-based electrochemical biosensors is to obtain a biorecognition layer on the biosensor, which can be influenced by many factors. Hence, we constructed a series of HJ24 layers
Xueqin Zhao +3 more
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Behavior of iodine implanted in highly oriented pyrolytic graphite (HOPG) after heat treatment
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2012Abstract The behavior of iodine implanted in highly oriented pyrolytic graphite (HOPG) has been investigated using Rutherford backscattering spectrometry (RBS), scanning electron microscopy (SEM) and X-ray diffraction (XRD). Iodine ions were implanted into HOPG using an energy of 360 keV and a dose of 1 × 1015 atoms cm−2 at room temperature.
Mxolisi B. Mukhawana +8 more
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