Results 31 to 40 of about 462,913 (290)

A transformative route to nanoporous manganese oxides of controlled oxidation states with identical textural properties [PDF]

, 2014
Nanoporous nanocrystalline metal oxides with tunable oxidation states are crucial for controlling their catalytic, electronic, and optical properties. However, previous approaches to modulate oxidation states in nanoporous metal oxides commonly lead to ...
Antonelli, Arvai, Bastos, Beberwyck, Buonsanti, Cho, Corma, Di Castro, Gao, Gorlin, Grosso, Gu, Guo, Hall, Han, Han, Hu, Hu, Huo, Imperor-Clerc, Jiao, Jiao, Jiao, Jiao, Kim, Kim, Laha, Lee, Lee, Lima, Lima, Liu, Liu, Luo, Malik, Mao, Mao, Oku, Otwinowski, Reidies, Ren, Rhadfi, Schüth, Sinha, Soler-Illia, Sun, Suntivich, Tian, Tian, Tüysüz, Vasquez, Wang, Wang, Wang, Wei, Xu, Xu, Yang, Yang, Yang, Yang, Yin, Zhang   +62 more
core   +1 more source

Estudo da dissolução oxidativa microbiológica de uma complexa amostra mineral contendo pirita (FeS2), Pirrotita (Fe1-xS) e Molibdenita (MoS2) Microbiological oxidative dissolution of a complex mineral sample containing pyrite (FeS2), pyrrotite (Fe1-xS) and molybdenite (MoS2)

Química Nova, 2007
This work aims to study the oxidation of a complex molybdenite mineral which contains pyrite and pyrrotite, by Acidithiobacillus ferrooxidans. This study was performed by respirometric essays and bioleaching in shake flasks.
Wilmo E. Francisco Jr, Denise Bevilaqua, Oswaldo Garcia Jr   +2 more
doaj   +1 more source

Multi-Sample Thermobalance for Rapid Cyclic Oxidation Under Controlled Atmosphere [PDF]

, 2004
When testing the resistance to oxidation of high temperature materials, the cyclic oxidation test is used as a reference because it integrates isothermal oxidation kinetics, oxide scale adherence, mechanical stresses, metallic alloy and oxide mechanical ...
Monceau, Daniel, Salabura, Jean-Claude
core   +1 more source

Autoxidation kinetics of aqueous nitric oxide [PDF]

FEBS Letters, 1993
Reports on the kinetics of the autoxidation of aqueous nitric oxide are discussed. It is concluded that the correct rate law is ‐d[NO]/dt = 4k aq[NO]2 [O2] with k aq = 2 × 106 M−2 · s−1 at 25°C and that a recent report of a rate law zero order in NO is incorrect.
Ford, Peter C, Wink, David A, Stanbury, David M   +2 more
openaire   +4 more sources

Photoinduced Absorption Spectroscopy of Photoelectrocatalytic Methylene Blue Oxidation on Titania and Hematite: The Thermodynamic and Kinetic Impacts on Reaction Pathways

Advanced Science, 2023
Photoelectrochemical oxidation of methylene blue is investigated, with particular focus on the difference in kinetics and thermodynamics of decoloration and mineralization employing photoinduced absorption spectroscopy.
Xinyue Guo, Zixuan Ma, Yuling Yuan, Yan Kang, Hong Xu, Zhiping Mao, Yimeng Ma   +6 more
doaj   +1 more source

Structural insight into polyphenol oxidation during black tea fermentation

Food Chemistry: X, 2023
Polyphenol oxidation during fermentation plays a critical role in the formation of flavor and function of black tea. However, how the specific structures of tea polyphenols affect their oxidation kinetics during black tea fermentation is still unknown ...
Lin Chen, Huajie Wang, Yang Ye, Yuefei Wang, Ping Xu   +4 more
doaj   +1 more source

Cyclic thermogravimetry of TBC systems [PDF]

, 2007
The previously developed cyclic thermogravimetry analysis (CTGA) method is applied to the cyclic oxidation at 1100 °C of ZrO2–Y2O3/NiPtAl or NiCoCrAlYTa/single crystal nickel-base AM3 superalloy TBC systems.
Monceau, Daniel, Oquab, Djar, Vande Put, Aurélie   +2 more
core   +2 more sources

Oxidation of cellulose in pressurized carbon dioxide [PDF]

, 2009
This work presents first results upon oxidation of type II cellulose by nitrogen dioxide dissolved in carbon dioxide at high pressure. This reaction leads to oxidized cellulose, a natural-based bioresorbable fabric used for biomedical applications.
A. Rattaz, Beckman, Belkadi, Chao, Ermolenko, J.-S. Condoret, James, Krässig, Krässig, M. Vignon, Nevell, Nevell, Pavlyuchenko, Raveedran, Reamer, Redmond, S. Camy, S. Montanari, Stilwell, van der Kraan, Verhoek, Yackel   +21 more
core   +4 more sources

Thermal oxidation kinetics of additive free polyamide 6-6 [PDF]

, 2013
Thermal aging of an additive free PA 6-6 has been elucidated at 90, 100, 120, 140, 150 and 160 C in airventiled ovens by Fourier transform infrared spectrophotometry, viscosimetry in molten state and uniaxial tensile testing.
BEN HASSINE, Mouna, COLIN, Xavier, CORREC, Olivier, EL MAZRY, Chaker   +3 more
core   +6 more sources

Direct measurement of nitrous oxide kinetics [PDF]

British Journal of Anaesthesia, 2012
Using conscious subjects, measurement of the effects of low concentrations of anaesthetic agents can allow the dynamics of onset and offset of the agent to be measured and kinetic values estimated. However, the tests have to be rapid and preferably assess cerebral function.We used a short version of the digit symbol substitution test (DSST) that ...
G B, Drummond, L, Fisher, O, Pumphrey, R R, Kennedy   +3 more
openaire   +2 more sources