Results 1 to 10 of about 6,863 (223)

Cluster Cleaned HOPG by XPS [PDF]

Surface Science Spectra, 2017
X-ray photoelectron spectroscopy was used to characterize a highly oriented pyrolytic graphite (HOPG) sample. The HOPG was freshly cleaved using Scotch tape prior in the entry lock of the spectrometer and subsequently cleaned using an argon cluster source.
David J. Morgan
exaly   +4 more sources

Pd–Cu/HOPG and Pd–Ag/HOPG Model Catalysts in CO and Methanol Oxidations at Submillibar Pressures [PDF]

Kinetics and Catalysis, 2019
The regularities of formation of alloyed Pd–Cu bimetallic particles deposited on highly oriented pyrolytic graphite (HOPG) were studied by STM and synchrotron-radiation-based XPS. Their chemical composition, structure, and the ranges of thermal stability under ultrahigh vacuum were determined.
Maxim A Panafidin, Andrey Bukhtiyarov, Igor Prosvirin   +2 more
exaly   +5 more sources

Highly oriented pyrolytic graphite chemical bonding structure after gallium implantation [PDF]

Scientific Reports
Highly oriented pyrolytic graphite (HOPG) structural changes caused by gallium (Ga) implantation at room temperature were investigated. Ga ions were implanted into HOPG at different energies (10, 20, and 30 keV) and fluences (ranging from 2 × 1015 to 5 × 
T. A. O. Jafer, H. A. A. Abdelbagi, A. Sulyok, G. Z. Radnóczi, K. Tőkési, J. B. Malherbe   +5 more
doaj   +2 more sources

Pure Hydrogen Low-Temperature Plasma Exposure of HOPG and Graphene: Graphane Formation?

Beilstein Journal of Nanotechnology, 2012
Single- and multilayer graphene and highly ordered pyrolytic graphite (HOPG) were exposed to a pure hydrogen low-temperature plasma (LTP). Characterizations include various experimental techniques such as photoelectron spectroscopy, Raman spectroscopy ...
Dominik Zumbühl, Ernst Meyer, Rémy Pawlak   +2 more
exaly   +2 more sources

Oxidation of Supported Nickel Nanoparticles: Effects of Lattice Strain and Vibrational Excitations of Active Sites [PDF]

Nanomaterials
This work investigated the oxidation in an atmosphere of N2O of different surface areas of single nickel nanoparticles deposited on highly oriented pyrolytic graphite (HOPG).
Sergey Yu. Sarvadii, Andrey K. Gatin, Nadezhda V. Dokhlikova, Sergey A. Ozerin, Vasiliy A. Kharitonov, Dinara Tastaibek, Vladislav G. Slutskii, Maxim V. Grishin   +7 more
doaj   +2 more sources

Recent studies of highly oriented pyrolytic graphite and hybrid graphite-silicon monochromator systems [PDF]

EPJ Web of Conferences, 2023
The excellent performance of highly oriented pyrolytic graphite (HOPG) as monochromator, analyzer and filter material for neutron instrumentation was discovered more than 50 years ago. Even though HOPG has been in use for a long time, there is still room
Freund Andreas K., Krencisz Dawn, Crosby Mike, Chen Changyong, Kozak Brian, Mikula Pavol, Farkas Gergely   +6 more
doaj   +1 more source

Kinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid Electrolyte

Electrochemistry, 2022
All-solid-state lithium-ion batteries that use sulfide solid electrolytes have attracted much attention due to their high safety and wide electrochemical window. In this study, highly oriented pyrolytic graphite (HOPG) and 75Li2S-25P2S5 (mol%) glass were
Danni YU, Meiqi HUANG, Yuto MIYAHARA, Kohei MIYAZAKI, Akitoshi HAYASHI, Masahiro TATSUMISAGO, Takeshi ABE, Tomokazu FUKUTSUKA   +7 more
doaj   +1 more source

Impact of Hydrogen Peroxide on Carbon Corrosion in Aqueous KOH Solution

Electrochemistry, 2022
Impact of hydrogen peroxide on carbon corrosion is investigated by immersion tests of catalyst-deposited highly oriented pyrolytic graphite (HOPG) samples to an aqueous solution of 1.0 mol dm−3 KOH + 5 mmol dm−3 H2O2. The surfaces of the HOPG samples are
Atsunori IKEZAWA, Kohei MIYAZAKI, Tomokazu FUKUTSUKA, Takeshi ABE   +3 more
doaj   +1 more source

The role of surface defects in hopg on the electrochemical and physical deposition of Ag [PDF]

Journal of the Serbian Chemical Society, 1999
The role of defects on a substrate surface during the initial stages of nucleation and growth ofAg deposited electrochemically and physically on highly oriented pyrolytic graphite (HOPG) has been observed ex situ by scanning tunneling microscopy
Štrbac S., Rakočević Z., Popov K.I., Pavlović M.G., Petrović R.   +4 more
doaj   +1 more source

Comparative study of electrodeposited copper nanoparticles on different substrates for their use in the reduction of nitrate ions

Results in Engineering, 2023
A comparative analysis of the electrodeposition of copper nanoparticles (CuNPs) was studied on highly oriented pyrolytic graphite (HOPG) and vitreous carbon (VC) substrates from solutions containing different supporting electrolytes (Na2SO4 and H2SO4 ...
N. Zurita, S.G. García
doaj   +1 more source