Results 81 to 90 of about 4,629,960 (206)

High‐Pressure Chemical Vapor Deposition Growth of Transition Metal Dichalcogenides With Minimized Sulfur Vacancies

National Materials, EarlyView.
High‐pressure chemical vapor deposition at 3800 torr elevates the sulfur chemical potential during MoS2 growth, suppressing sulfur‐vacancy formation. This thermodynamic control yields MoS2 with defect densities comparable to those of exfoliated crystals, enhanced crystallinity, uniform defect distribution, and improved electronic transport properties ...
Takmo Jeong, Bumsub Song, Bong Gyu Shin, Jae Woo Kim, Sang‐Hyeok Yang, Young‐Min Kim, Ki Kang Kim, Young Hee Lee, Seok Joon Yun   +8 more
wiley   +1 more source

Adsorption of dicyanoaurate (I) ions on highly oriented pyrolytic graphite

, 1998
The adsorption of dicyanoaurate (I) onto the surface of activated carbon is the basis of modern techniques for gold extraction. The process is very efficient and has been the major factor in improving the productivity of the gold mining industry over the
Kirton, G., Thurgate, S.M., S.M Thurgate, I.M Ritchie, G Poinen, G Kirton, Poinen, G., Ritchie, I.M.   +7 more
core   +1 more source

Growth of palladium nanoparticles on nanostructured highly ordered pyrolytic graphite [PDF]

, 2014
International audienceWe report on the growth of palladium nanoparticles on the basal plane of as-cleaved highly oriented pyrolytic graphite (HOPG) samples, and on CO2 ion sputtered nanostructured HOPG surfaces.
Stephan, Regis, Dulot, Frédéric, Hanf, Marie-Christine, Florentin, Alban, Wetzel, Patrick, Yuan, Z., Denys, Emmanuel, Harbich, W.   +7 more
core   +3 more sources

Crystallinity Effects on Near‐Infrared Photoresponse in Y6‐Based Organic Phototransistors

Small, EarlyView.
Solution‐processed Y6 thin films are investigated as active layers of organic field‐effect transistors and as near‐infrared photodetectors. Enhanced crystallinity in Y6 films induced by thermal annealing leads to improved charge transport and pronounced photoresponsivity.
Lluís Casabona‐Cendra, Carme Martínez‐Domingo, Vick Y. Qiu, Xiaocen Dong, Dean Kos, Sergi Riera‐Galindo, Mariano Campoy‐Quiles, Ji‐Seon Kim, Marta Mas‐Torrent   +8 more
wiley   +1 more source

Definitive evidence for fast electron transfer at pristine basal plane graphite from high-resolution electrochemical imaging [PDF]

, 2012
After all, it's active: High-resolution scanning electrochemical cell microscopy (SECCM) demonstrates that electron transfer at the basal plane of highly oriented pyrolytic graphite (HOPG) is fast.
Kim McKelvey, Lai, Stanley Chi Shing, McKelvey, Kim M., Unwin, Patrick R., Patrick R. Unwin, Anisha N. Patel, Patel, Anisha N., Stanley C. S. Lai   +7 more
core   +1 more source

Detection and Inhalation Hazard Assessment of Wear Particles Arising From Abrasion of Market‐relevant Graphene Reinforced Composites

Small, EarlyView.
Abrasion of few‐layer graphene (FLG)–epoxy composites generated respirable particles in which FLG remained fully embedded, as confirmed by correlative HR‑TEM, Raman, and ToF‑SIMS analyses. Advanced lung cell models revealed no cytotoxic or inflammatory responses, and only high‑dose epoxy particles reduced mucociliary clearance.
Govind Gupta, Jimmy Vernaz, Antje Vennemann, Maike Stange, Asmus Meyer‐Plath, Servane Contal, Sarah Zehnder, Ziting Wang, Aline Chary, Stephanie Eitner, Philipp Mueller, Vera M. Kissling, Samuel Constant, Lucie Chupin, Daniel Breitenstein, Birgit Hagenhoff, Tommaso Serchi, Bernadett Boda, Martin Wiemann, Peter Wick, Tina Buerki‐Thurnherr   +20 more
wiley   +1 more source

Determination of Oxygen Functionality on Highly Oriented Pyrolytic Graphite (HOPG)

, 2012
Carbon can be used as an alternative to metal based catalysts for oxidative dehydrogenation reaction (ODH) of aromatic hydrocarbons, alkanes or alkenes. The active sites of the catalyst are still unknown, but it should be either one or more of the oxygen functional groups.
Li, H., Risse, T.
openaire   +1 more source

Complex Refractive Index Determination Via Microspectroscopy Through Magnifying Optics: Challenges and Opportunities

Small Methods, EarlyView.
Microspectroscopy combines a standard optical microscope with a spectrometer to measure reflectance and transmittance of samples down to the microscale. A numerical formalism that explicitly accounts for the high numerical aperture of magnifying optics retrieves complex refractive indices.
Julian Schwarz, Johannes Bauer, Mathias Rommel, Andreas Hutzler   +3 more
wiley   +1 more source

Coordination Chemistry of Boron Subphthalocyanine With BINOL Derivatives: Unexpected Oxidation to Oxa[4]Helicene and Properties of the Resulting Axially Coordinated Complexes Containing Oxa[4]Helicene and/or BINOL Derivatives

Chemistry – A European Journal, Volume 32, Issue 40, 27 October 2026.
Treatment of BINOL with a boron subphthalocyanine derivative resulted in the formation of a complex coordinated to an oxa[4]helicene derivative, which is generated via a ring‐closure reaction of BINOL. In contrast, treatment of the monomethyl ether of 1,1′‐bi‐2‐naphthol (BINOL) afforded the expected axially coordinated complex.
Shafikul Islam, Kazuyuki Asahi, Hiroyuki Nishikawa, Daiki Tauchi, Masashi Hasegawa, Ken‐ichi Sugiura   +5 more
wiley   +1 more source

Observation of the damage on HOPG surface induced by Ar+8 ions

, 1999
Highly oriented pyrolytic graphite (HOPG) samples were bombarded by Highly oriented pyrolytic graphite (HOPG) samples were bombarded ...
YTang, PJFeng, CShang, JHou, JWang, CLWu, SLZhang, XWLiu, GYBai, Zhai, MDLiu   +10 more
core