A5013287183- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Advancements in Battery Materials
- Organic Electronics and Photovoltaics
- Advanced battery technologies research
- Graphene research and applications
- Analytical Chemistry and Sensors
- Molecular Junctions and Nanostructures
- Electrochemical sensors and biosensors
- Semiconductor materials and devices
- Nanowire Synthesis and Applications
- Electrochemical Analysis and Applications
- Semiconductor materials and interfaces
- Advanced Battery Technologies Research
- Ionic liquids properties and applications
- Graphene and Nanomaterials Applications
- Synthesis and Properties of Aromatic Compounds
- Neuroscience and Neural Engineering
- Electrospun Nanofibers in Biomedical Applications
- Nanomaterials for catalytic reactions
- Polymer Surface Interaction Studies
- Synthesis and Characterization of Heterocyclic Compounds
- Electron and X-Ray Spectroscopy Techniques
- Polymer Nanocomposite Synthesis and Irradiation
Leibniz-Institute for New Materials
2020-2023
Centre National de la Recherche Scientifique
2014-2020
Université Grenoble Alpes
2014-2020
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2014-2020
CEA Grenoble
2014-2020
University of Göttingen
2018-2020
Institut Nanosciences et Cryogénie
2014-2019
Systèmes Moléculaires et nanoMatériaux pour l'Énergie et la Santé
2017-2018
CEA Paris-Saclay - Etablissement de Saclay
2018
CEA Paris-Saclay
2018
Building of hierarchical core-shell hetero-structures is currently the subject intensive research in electrochemical field owing to its potential for making improved electrodes high-performance micro-supercapacitors. Here we report a novel architecture design MnO2@silicon nanowires (MnO2@SiNWs) directly supported onto silicon wafer coupled with Li-ion doped 1-Methyl-1-propylpyrrolidinium bis(trifluromethylsulfonyl)imide (PMPyrrBTA) ionic liquids as electrolyte A unique 3D mesoporous...
The electrochemical and structural properties, charge capacitance, stability upon oxidation−reduction cycling of multilayered systems based on alternated layers different conducting polymers have been analyzed. Parallel studies carried out individual for comparison. In all cases, the capacitive properties were better than those polymers, which attributed to both synergistic effects at interfaces between consecutive higher porosity materials. Moreover, after hundreds processes, in remained...
Vertically oriented graphene nanosheets were synthesized by an alternative and simple approach based on electron cyclotron resonance-plasma enhanced chemical vapor deposition (ECR-CVD) onto highly doped silicon substrates.
A micro-supercapacitor electrode made of polypyrrole coated silicon nanotrees.
A versatile and robust hierarchically multifunctionalized nanostructured material made of poly(3,4-(ethylenedioxy)thiophene) (PEDOT)-coated diamond@silicon nanowires has been demonstrated to be an excellent capacitive electrode for supercapacitor devices. Thus, the electrochemical deposition nanometric PEDOT films on diamond-coated silicon nanowire (SiNW) electrodes using N-methyl-N-propylpyrrolidinium bis((trifluoromethyl)sulfonyl)imide ionic liquid displayed a specific capacitance value...
The development of a novel hybrid symmetric micro-supercapacitor based on poly(3,4-ethylenedioxythiophene) coated silicon nanowires using an ionic liquid PYR<sub>13</sub>TFSI as electrolyte has been demonstrated.
The (de)lithiation process and resulting atomic nanoscale morphological changes of an a-Si/c-FeSi2/graphite composite negative electrode are investigated within a Li-ion full cell at several current rates (C-rates) after prolonged cycling by simultaneous operando synchrotron wide-angle small-angle X-ray scattering (WAXS SAXS). WAXS allows the probing local crystalline structure. In particular, observation graphite process, revealed LixC6 Bragg reflections, enables access to respective...
Abstract Advanced anode material designs utilizing dual phase alloy systems like Si/FeSi 2 nano-composites show great potential to decrease the capacity degrading and improve cycling capability for Lithium (Li)-ion batteries. Here, we present a multi-scale characterization approach understand (de-)lithiation irreversible volumetric changes of amorphous silicon (a-Si)/crystalline iron-silicide (c-FeSi ) nanoscale its evolution due cycling, as well their impact on proximate pore network....
Exfoliated nanocomposites of poly(3,4-ethylenedioxythiophene) (PEDOT) and montmorillonite (MMT) have been prepared by in situ anodic polymerization, concentrations clay ranging from 5% w/w to 50% being included the aqueous polymerization medium. The morphology, electrical conductivity, adherence, thermal stability, charge storage, specific capacitance, electrostability, doping level band gap determined for different PEDOT–MMT compared with those pristine PEDOT. Many these properties found...
Supercapacitors offer high power densities but require further improvements in energy for widespread commercial applications. In addition to the conventional strategy of using large surface area materials enhance storage, recently, matching electrolyte ion sizes material pore has been shown be particularly effective. However, synthesis and characterization with precise remain challenging. Herein, we propose evaluate layered structures graphene derivatives as being analogous pores study...
Micro-supercapacitors are increasingly foreseen as future energy storage or power buffer solutions for small scale integration on-chip. This study develops optimized silicon nanotrees an innovative electrode material.
Growth on a sacrificial salt support provides P-doped Si nanowires as conductive powder, ready for use in slurry formulation energy storage electrodes.