Catherine Marichy

Catherine Marichy
Claude Bernard University Lyon 1 | UCBL · Laboratoire des matériaux et interfaces (LMI)

PhD

About

41
Publications
4,072
Reads
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1,305
Citations
Citations since 2017
16 Research Items
843 Citations
2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140
Additional affiliations
October 2013 - present
Claude Bernard University Lyon 1
Position
  • Researcher
November 2012 - September 2013
Université de Fribourg
Position
  • PostDoc Position
October 2008 - September 2012
University of Aveiro
Position
  • PhD Student

Publications

Publications (41)
Article
Full-text available
Solventless synthesis and processing of Metal Organic Frameworks (MOFs) is critical to implement these materials in applied technologies. Vapour phase synthesis of MOF thin films is particularly suitable for such applications, but challenging compared to the conventional solution based methods. It is therefore compelling to advance and widen the va...
Article
Vapor-phase infiltration (VPI), a technique derived from atomic layer deposition (ALD) and based on sequential self-limiting chemistry, is used to modify the stable microporous porphyrin-based metal-organic framework (MOF) MIL-173(Zr). VPI is an appealing approach to modifying MOFs by inserting reactants with atomic precision. The microporous natur...
Article
Full-text available
Hexagonal boron nitride (h-BN) is nowadays an increasingly attractive material, especially for two-dimensional material applications, due to its intrisic properties. However, its properties are highly dependent on the used synthesis approach. The polymer derived ceramics (PDCs) route allows elaboration of h-BN with tailored textural and structural...
Article
Following the graphene isolation, strong interest in two dimensional (2D) materials has been driven by their outstanding properties. Their typical intrinsic structure, including strong in-plane covalent bonding and weak out-of-plane Van der Waals interaction, makes them highly promising in diverse areas such as electronics, catalysis, and environme...
Article
Among the various types of chemical gas sensors, resistive gas sensors are attractive because of their high sensitivity, stability, low cost and fast response. In particular, metal oxide (MOx) semiconductors, such as SnO 2 , ZnO and TiO 2 , have been widely studied as active layer. However, performances of sensors and their selectivity are strongly...
Article
From low cost template made of electrospun polyacrylonitrile fibers, highly stable boron nitride nanotube (BNNT) mat is fabricated using low temperature atomic layer deposition (ALD) of BN. Based on polymer derived ceramics chemistry, this ALD process permits preparing high quality BNNTs that show superhydrophocity, stability over a month in air an...
Presentation
In the present communication, we reported the fabrication of h-BN complex nano- and hetero-structures by a two-step ALD approach using trichloroborazine reacting with hexamethyldisilazane. This two-step process consists first of the growth layer by layer of a preceramic BN films at low temperature, and then to its densification into pure h-BN by an...
Article
Due to their high potential in energy and environment domains, synthetic approach allowing fabrication of high quality boron nitride (BN) structures in a controlled manner is of great interest. Herein, a two-step ammonia-free atomic layer deposition approach of BN, based on polymer derived ceramics chemistry is reported for the first time. Using tr...
Presentation
Hexagonal boron nitride (h-BN) material presents high potential in energy and environment domains. Synthetic approach allowing fabrication of high quality BN low dimension structures in a controlled manner is of great interest. Atomic Layer Deposition (ALD) is a technique of choice for elaborating such thin film/sheets and nanostructures, due to it...
Article
Full-text available
A high quality BN membrane with millions of through cylindrical pores is simply fabricated using a double inversion approach combining atomic layer deposition and polymer-derived ceramic route. Well crystallized hexagonal boron nitride walls are obtained at relatively low temperature (1000 °C). This new membrane is a promising candidate for osmotic...
Article
Hyperuniform disordered networks belong to a peculiar class of structured materials predicted to possess partial and complete photonic bandgaps for relatively moderate refractive index contrasts. The practical realization of such photonic designer materials is challenging however, as it requires control over a multi-step fabcrication process on opt...
Article
Full-text available
It has previously been reported that epitaxial growth of ZnO can be obtained at low temperatures by atomic layer deposition (ALD) onto a GaN (0001-Ga) surface, corresponding to a ~2.3% compressive lattice mismatch of the deposited ZnO. The question addressed here is the atomic ordering of deposited ZnO as a function of the lattice mismatch between...
Article
Atomic layer deposition is a thin film deposition technique based on self-terminated surface reactions. Contrarily to most of the thin film deposition techniques, it is not a line of sight deposition technique due to the sequential introduction of the gaseous precursors and because the reactants can only react with surface species. The precursors c...
Article
Full-text available
Electrospinning and atomic layer deposition (ALD) have been coupled to prepare functional hetero-structures with potential application in fuel cells. Electrocatalysts comprising platinum (Pt) nanoparticles dispersed onto electrospun carbon fibers were selectively decorated with tin dioxide (SnO2) using ALD. The presence of SnO2 led to a considerabl...
Article
Full-text available
Photonic crystal materials are based on a periodic modulation of the dielectric constant on length scales comparable to the wavelength of light. These materials can exhibit photonic band gaps; frequency regions for which the propagation of electromagnetic radiation is forbidden due to the depletion of the density of states. In order to exhibit a fu...
Article
Capacitance-voltage (C–V) and capacitance-frequency (C–f) measurements are performed on atomic layer deposited TiO2 thin films with top and bottom Au and Pt electrodes, respectively, over a large temperature and frequency range. A sharp capacitance peak/discontinuity (C–V anomalous) is observed in the C–V characteristics at various temperatures and...
Article
Full-text available
Amorphous titanium dioxide-coated carbon nanotubes (CNTs) were prepared by atomic layer deposition (ALD) and investigated as sensing layers for resistive NO2 and O2 gas sensors. By varying ALD process conditions and CNT structure, heterostructures with different metal oxide grain size, morphology and coating thickness were synthesized. Higher respo...
Article
Proton exchange membrane fuel cells (PEMFC) can provide clean and long lasting electrical energy while being portable and operated at relatively low temperatures. However, a reduction of the fabrication costs and an improved durability are pivotal to a successful market introduction of this technology. A more effective utilisation of the highly pri...
Article
Unusual network structures are used by F. Scheffold and co-workers as templates for a new type of disordered photonic material. The networks are constructed by 3D tessellation based on numerically generated point patterns with long-range hyperuniform correlations. On page 115, using a combination of direct laser writing lithography and chemical vap...
Article
Carbon materials such as carbon nanotubes (CNTs), graphene, and reduced graphene oxide (RGO) exhibit unique electrical properties, which are also influenced by the surrounding atmosphere. They are therefore promising sensing materials. Despite the existence of studies reporting the gas-sensing properties of metal oxide (MOx) coated nanostructured c...
Article
The mechanisms of growth of TiO2 thin films by atomic layer deposition (ALD) using either acetic acid or ozone as the oxygen source and titanium isopropoxide as the metal source are investigated by in situ Fourier transform infrared spectroscopy (FTIR) and ex situ X-ray photoelectron spectroscopy. The FTIR study of the acetic acid-based process cle...
Article
Full-text available
The preparation, characterization and sensing properties of CNT composites with a thin metal oxide (MOx) surface layer is presented. Atomic layer deposition (ALD) was applied for the coating of the inner and outer CNTs walls with thin films of ZnO and SnO2 of precisely controlled thicknesses. Differently treated CNTs with different degree of surfac...
Article
The authors would like to make the following correction to the ESI: The graphene oxide (GO) preparation was stated to be carried out via a modified Hummer's method as described in reference 1. However, for all the samples synthesized in this work the GO was synthesized by the traditional Hummer's method. In a next article, now under finalization, a...
Article
The sensing properties of SnO 2/CNFs (CNFs = carbon nanofibers) prepared by Atomic Layer Deposition (ALD) have been investigated. By means of a novel ALD approach, which was adapted from the non-hydrolytic sol-gel route, has been possible to achieve the coating of the inner and outer surface of carbon nanofibers with a highly conformal metal oxide...
Article
Full-text available
The chemical inertness of graphite and, in the case of tubes, of rolled up few layer graphene sheets, requires some degree of “defect engineering” for the fabrication of carbon based heterostructured materials. It is shown that atomic layer deposition provides a means to specifically label anchoring sites and can be used to characterize the surface...
Article
Atomic layer deposition (ALD) is a thin film technology that in the past two decades rapidly developed from a niche technology to an established method. It proved to be a key technology for the surface modification and the fabrication of complex nanostructured materials. In this Progress Report, after a short introduction to ALD and its chemistry,...
Chapter
Aqueous and Nonaqueous Sol–Gel in SolutionSol–Gel and ALD: An OverviewMechanistic and In Situ StudiesReferences
Article
Full-text available
A simple and rapid route for the preparation of iron-based catalyst layers for CVDgrowth of carbon nanotubes is introduced. The catalyst was deposited by a microwave-assisted nonaqueous sol–gel process onto silicon wafers with or without an Al2O3buffer layer and onto colloidal silica spheres. High quality vertically aligned carbon nanotube (VACNT)...
Article
A one-pot non-aqueous synthesis of crystalline SnO2- and Fe3O4-based graphene heterostructures in just a few minutes is introduced. The combined properties of the microwave heating and the “benzyl alcohol route” allow the selective growth of metal oxidenanoparticles at the surface of graphene oxide, which is reduced during synthesis. The as-fabrica...
Article
A new atomic layer deposition (ALD) process for nanocrystalline tin dioxide films is developed and applied for the coating of nanostructured materials. This approach, which is adapted from non-hydrolytic sol-gel chemistry, permits the deposition of SnO2 at temperatures as low as 75 °C. It allows the coating of the inner and outer surface of multiwa...
Article
CoFe(2)O(4)-TiO(2) and CoFe(2)O(4)-ZnO nanoparticles/film composites were prepared from directed assembly of colloidal CoFe(2)O(4) in a Langmuir-Blodgett monolayer and atomic layer deposition (ALD) of an oxide (TiO(2) or ZnO). The combination of these two methods permits the use of well-defined nanoparticles from colloidal chemistry, their assembly...
Article
Combining both electromagnetic simulations and experiments, it is shown that the photonic pseudo band gap (PPBG) exhibited by a silica opal can be fully controlled by Atomic Layer Deposition (ALD) of titania into the pores of the silica spheres constituting the opal. Different types of opals were assembled by the Langmuir-Blodgett technique: homoge...

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