| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Revilla, Reynier I.
Vrije Universiteit Brussel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Unveiling the impact of laser power variations on microstructure, corrosion, and stress-assisted surface crack initiation in laser powder bed fusion-processed Ni-Fe-Cr alloy 718citations
- 2024On the Interaction between PEDOT:PSS Dispersions and Aluminium Electrodes for Solid State Electrolytic Capacitorscitations
- 2024Mechanism of alteration in passivity of additively manufactured Ni-Fe-Cr Alloy 718 caused by minor carbon variationcitations
- 2024Effect of heat treatment on the microstructure and pitting corrosion behavior of 316L stainless steel fabricated by different additive manufacturing methods (L-PBF versus L-DED): Comparative investigation exploring the role of microstructural features on passivitycitations
- 2023Heat treatment for metal additive manufacturingcitations
- 2022Microstructural Features, Defects, and Corrosion Behaviour of 316L Stainless Steel Clads Deposited on Wrought Material by Powder- and Laser-Based Direct Energy Deposition with Relevance to Repair Applicationscitations
- 2022Effect of Thermal Treatment on Corrosion Behavior of AISI 316L Stainless Steel Manufactured by Laser Powder Bed Fusioncitations
- 2022Growth kinetics and passive behavior of the native oxide film on additively manufactured AlSi10Mg versus the conventional cast alloycitations
- 2022Revealing the stress corrosion cracking initiation mechanism of alloy 718 prepared by laser powder bed fusion assessed by microcapillary methodcitations
- 2022Influence of thermal oxide layers on the hydrogen transport through the surface of SAE 1010 steelcitations
- 2022Influence of Thermal Oxide Layers on the Hydrogen Transport through the Surface of SAE 1010 Steelcitations
- 2021Effect of Homogenization Temperature and Soaking Time on the Microstructure and Corrosion Properties of a Twin Roll Casted AA3003citations
- 2021On the Zr electrochemical conversion of additively manufactured AlSi10Mg: The role of the microstructurecitations
- 2021Effect of Sr Addition to a Modified AA3003 on Microstructural and Corrosion Propertiescitations
- 2021Effect of Sr Addition to a Modified AA3003 on Microstructural and Corrosion Propertiescitations
- 2020Microstructure and corrosion behavior of 316L stainless steel prepared using different additive manufacturing methodscitations
- 2020EIS comparative study and critical Equivalent Electrical Circuit (EEC) analysis of the native oxide layer of additive manufactured and wrought 316L stainless steelcitations
- 2020Effect of simulated brazing on the microstructure and corrosion behavior of twin roll cast AA3003citations
- 2020Effect of simulated brazing on the microstructure and corrosion behavior of twin roll cast AA3003citations
- 2020Corrosion and Corrosion Protection of Additively Manufactured Aluminium Alloys-A Critical Reviewcitations
- 2019Effect of brazing on the microstructure and corrosion behaviour of a twin roll cast Al-Mn-Fe-Si alloy system
- 2019On the Impact of Si Content and Porosity Artifacts on the Anodizing Behavior of Additive Manufactured Al-Si Alloyscitations
- 2018Role of Si in the Anodizing Behavior of Al-Si Alloys: Additive Manufactured and Cast Al-Si10-Mgcitations
- 2018Influence of Si Content on the Microstructure and Corrosion Behavior of Additive Manufactured Al-Si Alloyscitations
- 2017Galvanostatic Anodizing of Additive Manufactured Al-Si10-Mg Alloycitations
Places of action
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article
On the Interaction between PEDOT:PSS Dispersions and Aluminium Electrodes for Solid State Electrolytic Capacitors
Abstract
The use of conductive polymers in aluminium electrolytic capacitors prevents leakage and enlarges the temperature use range when compared with their liquid counterparts. PEDOT:PSS is an outstanding candidate due to its tunable properties, i.e. electronic conductivity (10e-5} to 10e3 S/cm), and its high thermal stability. As a result of their synthesis, PEDOT:PSS dispersions are characterized by a low pH value, which can influence pH sensitive materials such as aluminium. However, no work to date has studied the interaction between PEDOT:PSS dispersions and aluminium oxide substrates. In this work, the interface and interaction between PEDOT:PSS and an aluminium electrode were studied for the first time via odd random phase electrochemical impedance spectroscopy and analysed post-mortem by SEM and AFM characterization. PEDOT:PSS dispersions at different pH values (1.9, 4.9, 5.8) were applied in a layered manner onto a non-etched aluminium substrate with a grown oxide layer on top, which provided a model system for the analysis of the interface. The analysis showed that the acidic PEDOT:PSS dispersions attacked the aluminium substrate forming pores on the surface, but had a positive impact on the capacitance of the aluminium oxide/PEDOT:PSS systems. On the other hand, neutral dispersions did not affect the aluminium electrode, but showed poor layer formation properties and the electrochemical analysis displayed a dispersion of results ranging from capacitive to resistive behaviour.