Jeremy Come

Jeremy Come
Université de Picardie Jules Verne | UPJV · LRCS, Laboratoire de réactivité et chimie des solides

PhD

About

15
Publications
7,984
Reads
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5,300
Citations
Additional affiliations
June 2014 - November 2016
Oak Ridge National Laboratory
Position
  • PostDoc Position
January 2013 - January 2014
October 2009 - January 2014

Publications

Publications (15)
Article
Understanding the electrical double layer (EDL) structure at the solid/liquid interface is critical towards realizing the full potential of electrochemical applications using ionic liquids. In this work, the out-of-plane and in-plane EDL structures of PYR 14 -TFSI on graphite (HOPG) have been studied by in-situ electrochemical atomic force microsco...
Article
Iron-air cells provide a promising and resource-efficient alternative battery concept with superior area specific power density characteristics compared to state-of-the-art Li-air batteries and potentially superior energy density characteristics compared to present Li-ion batteries. Understanding charge-transfer reactions at the anode-electrolyte i...
Article
Two-dimensional materials, such as MXenes, are attractive candidates for energy storage and electrochemical actuators due to their high volume changes upon ion intercalation. Of special interest for boosting energy storage is the intercalation of multivalent ions such as Mg(2+), which suffers from sluggish intercalation and transport kinetics due t...
Article
Two-dimensional (2D) single-layer MoS2 nanosheets are demonstrated as efficient photocatalysts for hydrogen evolution reaction (HER) from water reduction thanks to specific in-plane heterojunctions constructed in the MoS2 monolayer. These functional heterojunctions are formed among the different phases of chemically exfoliated MoS2 monolayers: semi...
Article
Designing sustainable electrodes for next generation energy storage devices relies on the understanding of their fundamental properties at the nanoscale, including the comprehension of ions insertion into the electrode and their interactions with the active material. One consequence of ion storage is the change in the electrode volume resulting in...
Article
Fe3-xO4 raspberry shaped nanostructures/graphene nanocomposites were synthesized by a one-step polyol-solvothermal method to be tested as electrode materials for Li-ion battery (LIB). Indeed, Fe3-xO4 raspberry shaped nanostructures consist of original oriented aggregates of Fe3-xO4 magnetite nanocrystals, ensuring a low oxidation state of magnetite...
Article
Atomic force microscopy was used to monitor the macroscopic deformation in a delaminated Ti3C2 paper electrode in situ, during charge/discharge in a variety of aqueous electrolytes to examine the effect of the cation intercalation on the electrochemical behavior and mechanical response. The results show a strong dependence of the electrode deformat...
Article
Full-text available
Pseudocapacitive charge storage is based on faradaic charge-transfer reactions occurring at the surface or near-surface of redox-active materials. This property is of great interest for electrochemical capacitors because of the substantially higher capacitance obtainable as compared to traditional double-layer electrode processes. While high levels...
Article
Full-text available
Pseudocapacitance is commonly associated with surface or near-surface reversible redox reactions, as observed with RuO2·xH2O in an acidic electrolyte. However, we recently demonstrated that a pseudocapacitive mechanism occurs when lithium ions are inserted into mesoporous and nanocrystal films of orthorhombic Nb2O5 (T-Nb2O5; refs , ). Here, we quan...
Article
A new MXene phase, Ti2C, obtained by aluminum extraction from Ti2AlC and exfoliation of the reaction product, was electrochemically studied vs. Lithium. Li-ions insertion into the 2-D structure was characterized by in situ XRD measurements. Additional electrochemical kinetic characterizations of Ti2C, using a cavity micro-electrode, showed that the...
Article
Full-text available
Herein we report on Li insertion into a new two-dimensional (2-D) layered Ti2C-based material (MXene) with an oxidized surface, formed by etching Al from Ti2AlC in HF at room temperature. Nitrogen sorption of treated powders showed desorption hysteresis consistent with the presence of slit-like pores. At 23 m(2) g(-1), the specific surface area was...
Article
Full-text available
Lithium cation insertion and extraction in LiFePO4 were electrochemically studied with a cavity microelectrode (CME). Cyclic voltammetry measurements were used to characterize the kinetics of the material. LiFePO4 was successfully cycled from 0.1 mV s(-1) up to 1 V s(-1) and is therefore a suitable material to be used in high power applications, su...
Article
(Figure Presented) Four crystal phases are accessible by thermally and light-induced spin crossover associated with symmetry breaking for [Fe IIH2L2MeH2L2Me](PF 6)2 (H2L2Me is an acyclic hexadentate N6 Schiff base). In this novel molecular material, the arrays of FeII complex cations (high-spin: red triangles; low-spin: blue triangles) are separate...

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