A5028295626- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Conducting polymers and applications
- Catalytic Processes in Materials Science
- Metal and Thin Film Mechanics
- Advanced Battery Technologies Research
- Diamond and Carbon-based Materials Research
- Fuel Cells and Related Materials
- Advanced Sensor and Energy Harvesting Materials
- Advanced Battery Materials and Technologies
- Advanced ceramic materials synthesis
- High-Temperature Coating Behaviors
- Semiconductor Lasers and Optical Devices
- Photonic and Optical Devices
- Extraction and Separation Processes
- Catalysis and Oxidation Reactions
- Molecular Junctions and Nanostructures
- Aerogels and thermal insulation
- Synthesis and properties of polymers
- Tribology and Wear Analysis
- Electric and Hybrid Vehicle Technologies
- Electrodeposition and Electroless Coatings
- Advanced Photocatalysis Techniques
Laboratoire d'Analyse et d'Architecture des Systèmes
2014-2024
Centre National de la Recherche Scientifique
2010-2021
Université de Toulouse
2009-2021
Roche (France)
2010-2015
Laboratoire de Probabilités, Statistique et Modélisation
2015
Roche (Switzerland)
2013
Université du Québec à Montréal
2008-2009
Institut National de la Recherche Scientifique
2008-2009
Matériaux Ingénierie et Science
2006-2008
Institut National des Sciences Appliquées de Lyon
2005-2007
Large areal capacitance electrodes made of ruthenium oxide on highly porous gold current collectors are realized by an attractive approach. The hybrid structure exhibits a in excess 3 F cm(-2) and energy density for all-solid-state microsupercapacitors that is comparable to those microbatteries.
High-resolution on-chip supercapacitors with impressive scan rate abilities exceeding 1000 V s<sup>−1</sup>have been demonstrated.
Abstract Due to their high‐power density and long lifetime, microsupercapacitors have been considered as an efficient energy supply/storage solution for the operation of small electronic devices. However, fabrication remains confined 2D thin‐film microdevices with limited areal energy. In this study, integration all‐solid‐state 3D interdigitated on 4 in. silicon wafers record is demonstrated. The device electrodes are composed a pseudocapacitive hydrated ruthenium dioxide RuO 2 deposited...
Small-scale electrochemical capacitors, also called microsupercapacitors, have been the subject of intense research in past few years as miniaturized energy storage components for modern electronics. Although numerous microfabrication processes successfully assessed to achieve low-profile supercapacitors with submillimeter-scale features, several advances still need be made their performance characteristics become industrially viable components. Here we report occurrence unexpected...
Asymmetric interdigitated micro-supercapacitors with high resolution, dedicated to energy storage in embedded micro-systems, are fabricated using a simple micro-fabrication process based on the inkjet printing and electrolytic deposition techniques. The is optimized realize carbon nanotubes (cathode)/manganese oxide (anode) hybrid micro-device resolution of 100 μm. cell capacitance reaches value 2.4 mF.cm−2. Moreover, use asymmetric configuration allows extending working voltage device from...
Three-dimensional (3D) electrodes with improved areal energy have become increasingly important for microscale storage at the dawn of Internet Things. At its heart are a plethora microelectronic devices that require embedded harvesters and components to ensure autonomy. In this study, we develop porous metallic microstructures their conformal coating new RuOxNySz material through facile optimized electrodeposition process. The microporous structure nanodendritic network shows high...
This paper reports the synergetic effects of UV and visible light irradiation on photocatalytic activity well-defined nanostructures composed TiO2 films Au nanoparticles (NPs). New insights into electronic as well chemical processes that drive water decomposition were obtained by varying position NPs top at different depths inside semiconductor film. work highlights effect all Au-containing structures: hydrogen produced under + Vis shows 100% enhancement compared to net production either or...
Abstract Small dimension Li‐ion microbatteries are of great interest for embedded microsystems and on‐chip electronics. However, the deposition fully crystallized cathode thin film generally requires high temperature synthesis or annealing, incompatible with microfabrication processes integrated Si devices. In this work, a low process porous Prussian blue‐based on wafers is reported. The active material electrodeposited under aqueous conditions using pulsed protocol dendritic metallic...
Carbon functionalized with sulfophenyl moieties provides an interesting way to understand the interdependence between ionic species of electrolyte and electrode materials in carbon-based electrochemical capacitors. In situ measurements resistivity upon polarization revealed that grafted groups can provide required for formation a novel type electrical double layer. This charge storage mechanism potentially lead development capacitors smaller amounts electrolyte.
With its huge pseudocapacitance and excellent stability, ruthenium dioxide (RuO2) is considered to be one of the best electrode materials for supercapacitors. However, such properties are only obtained with hydrous RuO2 in an amorphous phase, limiting range possible deposition techniques. Herein we report a detailed understanding reactions protons (H+) occurring crystalline regard orientation using density functional theory. In particular, show that migration pathways energetically favorable...