Results 51 to 60 of about 126,657 (229)

Evidence of an EC' mechanism occurring during the simultaneous assay of ascorbic and uric acids on poly(3,4-ethylenedioxythiophene) modified gold microsensor. [PDF]

open access: yes, 2011
A voltammetric microsensor has been developed for the simultaneous assay of ascorbic (AA) and uric (UA) acids in aq. soln. The electrode surface has been modified by means of electropolymd. conductive poly(3,4-ethylenedioxythiophene) (PEDOT) org.
Evrard, David   +2 more
core   +4 more sources

Stoma‐Shell Nanoarchitecture for Enhanced Plasma Confinement Catalysis in Synthesis of Ethanol from CO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou   +5 more
wiley   +1 more source

Anodic dissolution of metals in oxide-free cryolite melts [PDF]

open access: yes, 2005
The anodic behavior of metals in molten cryolite-alumina melts has been investigated mostly for use as inert anodes for the Hall-Héroult process. In the present work, gold, platinum, palladium, copper, tungsten, nickel, cobalt and iron metal electrodes ...
A. Solheim   +15 more
core   +2 more sources

Photoconductivity‐Driven Quantum Efficiency Gain in Inorganic Ruddlesden‐Popper Layered Cs2PbBr2I2 Perovskite Photodetector for Visible Light Detection

open access: yesAdvanced Functional Materials, EarlyView.
Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah   +11 more
wiley   +1 more source

Electrochemical reduction of oxygen catalyzed by Pseudomonas aeruginosa [PDF]

open access: yes, 2010
Pseudomonas aeruginosa has already been shown to catalyze oxidation processes in the anode compartment of a microbial fuel cell. The present study focuses on the reverse capacity of the bacterium, i.e. reduction catalysis. Here we show that P. aeruginosa
Bergel, Alain   +4 more
core   +2 more sources

Artificial Amorphous Interface Matters for Boosting High‐Voltage Stable LiCoO2 Cathode

open access: yesAdvanced Functional Materials, EarlyView.
The amorphization of phosphate‐based surface layer with favorable Li‐ion conducting kinetics is realized by precisely tailored atomic‐level fabrication. This amorphous coating enables the lithium cobalt oxide (LCO) cathode superior high‐voltage rate capability and cycling performance, owing to the fast interfacial ionic transport and maintained ...
Jinjin Ma   +10 more
wiley   +1 more source

Il Tasso rivoluzionario

open access: yesItalies, 2003
L’identité des personnages célèbres présents dans les Operette morali n’a pas seulement une fonction allusive mais a un sens intertextuel : les operette qui se construisent autour d’eux renvoient implicitement à leur œuvre.
Antonella Del Gatto
doaj   +1 more source

Thermal conductivity of hemp concretes: Variation with formulation, density and water content

open access: yes, 2014
This study investigates the effect of formulation, density and water content on the thermal conductivity of hemp concretes. The investigations are based on experimental measurements and on self-consistent scheme modelling.
Collet, Florence, Prétot, Sylvie
core   +4 more sources

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

open access: yesAdvanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert   +14 more
wiley   +1 more source

Fractal dimension of fumed silica: Comparison of light scattering and electron microscope methods [PDF]

open access: yes, 2010
Due to the enormous increase in nanopowder production, it becomes necessary to find and develop adapted characterization techniques. In the case of nanostructured agglomerates, the structure of these particles has a direct impact on flowing, and handling,
Biscans, Béatrice, Isabeta, Nelson
core   +3 more sources

Home - About - Disclaimer - Privacy