Results 51 to 60 of about 6,489,351 (253)

Dynamic interplay between metal nanoparticles and oxide support under redox conditions

Science, 2022
The dynamic interactions between noble metal particles and reducible metal-oxide supports can depend on redox reactions with ambient gases. Transmission electron microscopy revealed that the strong metal-support interaction (SMSI)–induced encapsulation ...
H. Frey, A. Beck, X. Huang, J. V. van Bokhoven, M. Willinger   +4 more
semanticscholar   +1 more source

Effects of Calcination Temperatures on The Catalytic Activities of Alumina Supported Cobalt and Chromium Catalysts

Bulletin of Chemical Reaction Engineering & Catalysis, 2019
Catalysts properties are important for catalytic reactions. The interaction between support and metal in a catalyst is resulted from catalyst preparation.
Mardwita Mardwita, Eka Sri Yusmartini, Nidya Wisudawati   +2 more
doaj   +1 more source

Correlated metallic two particle bound states in quasiperiodic chains

, 2011
Single particle states in a chain with quasiperiodic potential show a metal-insulator transition upon the change of the potential strength. We consider two particles with local interaction in the single particle insulating regime. The two particle states
Aubry S., Aulbach Ch., Imry Y., Mikhail Ivanchenko, Ramaz Khomeriki, Sergej Flach   +5 more
core   +1 more source

Effect of metal particles on the electric field in DC GIL basin insulator

电力工程技术
Aiming at the safety threat posed by metal particle contamination inside DC gas-insulated transmission line (GIL), where metal particles tend to adhere to the surface of basin insulators, a simulation model reflecting the actual operating conditions in ...
Yuanlong WEI, Baina HE, Rongxi CUI, Weihan DAI, Dongjin ZHANG, Shuo WANG   +5 more
doaj   +1 more source

Direct calibration using atmospheric particles and performance evaluation of Particle Size Magnifier (PSM) 2.0 for sub-10 nm particle measurements [PDF]

Atmospheric Measurement Techniques
The Particle Size Magnifier is widely used for measuring nano-sized particles. Here we calibrated the newly developed Particle Size Magnifier version 2.0 (PSM 2.0). We used 1–10 nm particles with different compositions, including metal particles, organic
Y. Liu, Y. Liu, A. Yli-Kujala, F. Schmidt-Ott, S. Holm, L. Ahonen, T. Chan, J. Enroth, J. Vanhanen, R. Cai, T. Petäjä, M. Kulmala, Y. Chen, J. Kangasluoma   +13 more
doaj   +1 more source

Training manuals for nondestructive testing using magnetic particles [PDF]

, 1968
Training manuals containing the fundamentals of nondestructive testing using magnetic particle as detection media are used by metal parts inspectors and quality assurance specialists. Magnetic particle testing involves magnetization of the test specimen,

core   +1 more source

Metal–insulator transition in a weakly interacting many-electron system with localized single-particle states [PDF]

, 2005
We consider low-temperature behavior of weakly interacting electrons in disordered conductors in the regime when all single-particle eigenstates are localized by the quenched disorder.
D. Basko, D. Basko, I. Aleiner, B. L. Altshuler, B. L. Altshuler   +4 more
semanticscholar   +1 more source

An Unprecedented Metal Distribution in Silica Nanoparticles Determined by Single-Particle Inductively Coupled Plasma Mass Spectrometry

Nanomaterials
Metal-containing nanoparticles are now common in applications ranging from catalysts to biomarkers. However, little research has focused on per-particle metal content in multicomponent nanoparticles.
Juan Han, Xu Wu, Julia Xiaojun Zhao, David T. Pierce   +3 more
doaj   +1 more source

Directed energy deposition of metal matrix composites: Computational and experimental comparison of powder particle flow behavior

Journal of Materials Research and Technology, 2022
Directed energy deposition (DED) additive manufacturing of metal matrix composites (MMC) involves a mixture of metal and ceramic particles with a range of sizes, morphologies, and densities.
Sen Jiang, Baolong Zheng, Julie M. Schoenung   +2 more
doaj   +1 more source

The First Step in Solar Hydrogen Production: Development of a Solar Thermal Reactor for the Reduction of Metal Oxide Particles [PDF]

, 2013
A solar thermal reactor has been designed to experimentally investigate promising paths for reducing metal oxide particles to reduced oxidation states (e.g. Fe2O3 to Fe3O4) utilizing concentrated solar energy.
Fosheim, Jesse, Schrader, Andrew
core   +2 more sources