6533b82dfe1ef96bd1291c47
RESEARCH PRODUCT
The synthesis of a hybrid graphene–nickel/manganese mixed oxide and its performance in lithium-ion batteries
Marcos Latorre-sánchezAntonio RiberaMarta PucheHermenegildo GarcíaGonzalo AbellánVicente FornésPedro Atienzarsubject
Materials scienceGrapheneInorganic chemistryOxidechemistry.chemical_element02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences7. Clean energy0104 chemical scienceslaw.inventionchemistry.chemical_compoundchemistrylawMixed oxideGeneral Materials ScienceCalcinationLithiumGraphite0210 nano-technologyHybrid materialGraphene oxide paperdescription
Abstract Mixing of aqueous suspensions of delaminated NiMn layered double hydroxide (LDH) and graphene oxide leads to the instantaneous precipitation of a hybrid material that after calcination under inert atmosphere at 450 °C leads to Ni6MnO8 nanoparticles deposited on larger reconstituted graphene sheets. This material exhibits electrical conductivity similar to graphite, superparamagnetism and can be used as an anode for Li-ion batteries. A maximum capacity value of 1030 mA h g−1 was found during the first discharge, and capacity values higher than 400 mA h g−1 were still achieved after 10 cycles. The methodology used here should allow the preparation of a large variety of hybrid graphene-metal oxide materials starting from other LDHs in which the properties derived from both constituents coexist.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-02-01 | Carbon |