Blar i NTNU Open på forfatter "Wang, Zhaohui"
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Investigation of Spent Refractory Lining in an Anode Baking Furnace
Brandvik, Trond; Wang, Zhaohui; Ratvik, Arne Petter; Grande, Tor (Journal article; Peer reviewed, 2017)The refractory lining in anode baking furnaces is exposed to harsh chemical environment and thermal cycling. Spent refractory lining from an anode baking furnace after 4000 days in operation was investigated. Variation in ... -
Lining materials for carbochlorination reactors
Stabbforsmo, Thea (Master thesis, 2024)Aluminium er et av de mest produserte metallene globalt, med mer enn 70 metriske tonn produsert i 2023. Hall-Héroult-metoden er mest brukt i dag, noe som resulterer i direkte utslipp av CO2-gass. Parisavtalen legger press ... -
Removing fluoride-terminations from multilayered V2CTx MXene by gas hydrolyzation
Fagerli, Frode Håskjold; Wang, Zhaohui; Grande, Tor; Kaland, Henning; Selbach, Sverre Magnus; Wagner, Nils Peter; Wiik, Kjell (Peer reviewed; Journal article, 2022)Two-dimensional MXenes have shown great promise for many different applications, but in order to fully utilize their potential, control of their termination groups is essential. Here we demonstrate hydrolyzation with a ... -
The role of pressure and defects in the wurtzite to rock salt transition in cadmium selenide
Lervik, Anders; Svenum, Ingeborg-Helene; Wang, Zhaohui; Cabriolu, Raffaela; Riccardi, Enrico; Andersson, Stefan; van Erp, Titus Sebastiaan (Peer reviewed; Journal article, 2022)Using molecular dynamics and path sampling techniques we investigated the effect of pressure and defects in the wurtzite to rock salt transition in cadmium selenide (CdSe). In the pressure range 2–10 GPa, rate constants ... -
S3AM: A Spectral-Similarity-Based Spatial Attention Module for Hyperspectral Image Classification
Li, Ningyang; Wang, Zhaohui; Alaya Cheikh, Faouzi; Ullah, Mohib (Peer reviewed; Journal article, 2022)Recently, hyperspectral image (HSI) classification based on deep learning methods has attracted growing attention and made great progress . Convolutional neural networks based models, especially the residual networks ... -
Solvent-Controlled Charge Storage Mechanisms of Spinel Oxide Electrodes in Mg Organohaloaluminate Electrolytes
Wang, Lu; Wang, Zhaohui; Vullum, Per Erik; Selbach, Sverre Magnus; Svensson, Ann Mari; Vullum-Bruer, Fride (Journal article; Peer reviewed, 2017)Considering the improved safety, reduced cost, and high volumetric energy density associated with Mg batteries, this technology has distinct advantages for large-scale energy storage compared to other existing battery ... -
Thermal Insulation Materials in Aluminum Electrolysis Cells
Luneng, Raymond (Doctoral theses at NTNU;2020:112, Doctoral thesis, 2020)Aluminum is produced by an energy intensive process known as the Hall-Héroult process, which has been developed extensively since it was first invented in 1886. Recent trends in the aluminum industry has been to strive for ... -
A Thermodynamic Assessment of the Chemical Durability of Refractory Lining in Anode Baking Furnaces
Grande, Tor; Brandvik, Trond; Ratvik, Arne Petter; Wang, Zhaohui (Journal article, 2016) -
Thermogravimetric Analysis of Thermal Insulating Materials Exposed to Sodium Vapor
Luneng, Raymond; Wang, Zhaohui; Ratvik, Arne Petter; Grande, Tor (Journal article; Peer reviewed, 2019)The bottom thermal insulating layer in aluminum electrolysis cells is normally well protected from chemical attacks by a refractory layer. However, autopsies of spent cathode lining have shown that sodium vapor may reach ... -
Van der Waals density functional study of the energetics of alkali metal intercalation in graphite
Wang, Zhaohui; Selbach, Sverre Magnus; Grande, Tor (Journal article; Peer reviewed, 2014)We report on the energetics of intercalation of lithium, sodium and potassium in graphite by density functional theory using recently developed van der Waals (vdW) density functionals. First stage intercalation compounds ... -
Wetting of Carbon Cathodes by Molten Electrolyte and Aluminium
Senanu, Samuel; Ratvik, Arne Petter; Wang, Zhaohui; Grande, Tor (Journal article; Peer reviewed, 2021)The extent to which the carbon cathode is wetted by molten electrolyte or molten aluminium metal is important for understanding the cathode wear during aluminium electrolysis. The present paper reports on a laboratory study ...