Publications by authors named "Tiphaine Tailliez"
Article Synopsis
- A manganese-cobalt asbolane material was synthesized from birnessite using low-temperature cationic exchange with cobalt nitrate, enabling a high active mass loading for use in supercapacitors.
- The material features a unique structure with MnO-type slabs and Co(OH) islands, confirmed through electronic transmission microscopy, showing two interlocking hexagonal sublattices.
- Electrochemical tests demonstrated impressive capacitance of up to 180 F g, revealing effective charge storage mechanisms synergizing the properties of both components, along with promising long-term performance durability.
This paper reports on an innovative and efficient approach based on the use of ionic liquids to govern the nano-structuration of HCoO, in order to optimize the porosity and enhance the ionic diffusion through the electrode materials. In this work, we show that (1-pentyl-3-methyl-imidazolium bromide (PMIMBr) and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIMBF)) ionic liquids (ILs) used as templates during the synthesis orientate the nanoparticle aggregation which leads to increase of the porosity and the average pore size of the electrode material. It is also demonstrated that the ILs are strongly bonded to the HCoO surface, leading to surface functionalized HCoO materials, also called nanohybrids.
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