| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Carvalho, M. L.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2021Investigation of inks, pigments and paper in four Moroccan illuminated manuscripts dated to the eighteenth centurycitations
- 2019A painter in the shadowcitations
- 2019Josefa d' Óbidos workshop from panel to canvas. Multianalytical approach to materials and technical evolution of the most significant Portuguese painting workshop of the 17 th centurycitations
- 2016Distribution of toxic elements in teeth treated with amalgam using mu-energy dispersive X-ray fluorescencecitations
- 2016Titanate nanotubes sensitized with silver nanoparticles: synthesis, characterization and in-situ pollutants photodegradationcitations
- 2015Microscopy and X-Ray Spectroscopy Analyses for assessment gilding and silvering techniques of Portuguese illuminated manuscriptscitations
- 2015White Spots on Smoke Rings by Bruce Nauman: A Case Study On Contemporary Art Conservation Using Microanalytical Techniquescitations
- 2015Microscopy and Microanalysis of an Extreme Case of Salt and Biodegradation in 17th Century Wall Paintingscitations
- 2015Nondestructive analysis of Portuguese “dinheiros” using XRF: overcoming patina constraintscitations
- 2015A multi-analytical approach to gold in Ancient Egypt: Studies on provenance and corrosioncitations
- 2014Effect of protein adsorption on the corrosion behavior of 70Cu-30Ni alloy in artificial seawatercitations
- 2014The study of marine corrosion of copper alloys in chlorinated condenser cooling circuitscitations
- 2013Pulsed current electrodeposition of Zn-Ag2S/TiO2 nanocomposite films as potential photoelectrodescitations
- 2013The earrings of Pancas treasure: Analytical study by X-ray based techniques-A first approachcitations
- 2012Monitoring by an electrochemical integrated system the corrosion and antifouling treatment on aluminum brass condenser tubescitations
- 2008Pigment characterization and state of conservation of an 18th century fresco in the Convent of S. António dos Capuchos (Estremoz)citations
- 2008Analysis of a coloured Dutch map from the eighteenth centurycitations
Places of action
| Organizations | Location | People |
|---|
article
Effect of protein adsorption on the corrosion behavior of 70Cu-30Ni alloy in artificial seawater
Abstract
<p>Copper alloys often used in cooling circuits of industrial plants can be affected by biocorrosion induced by biofilm formation. The objective of this work was to study the influence of protein adsorption, which is the first step in biofilm formation, on the electrochemical behavior of 70Cu-30Ni (wt.%) alloy in static artificial seawater and on the chemical composition of oxide layers. For that purpose, electrochemical measurements performed after 1h of immersion were combined to surface analyses. A model is proposed to analyze impedance data. In the presence of bovine serum albumin (BSA, model protein), the anodic charge transfer resistance deduced from EIS data at E<sub>corr</sub>is slightly higher, corresponding to lower corrosion current. Without BSA, two oxidized layers are shown by XPS and ToF-SIMS: an outer layer mainly composed of copper oxide (Cu<sub>2</sub>O redeposited layer) and an inner layer mainly composed of oxidized nickel, with a global thickness of ~30nm. The presence of BSA leads to a mixed oxide layer (CuO, Cu<sub>2</sub>O, Ni(OH)<sub>2</sub>) with a lower thickness (~10nm). Thus, the protein induces a decrease of the dissolution rate at E<sub>corr</sub>and hence a decrease of the amount of redeposited Cu<sub>2</sub>O and of the oxide layer thickness.</p>