The synthesis of fluorinated reduced graphene oxide (F-rGO) by direct fluorination of reduced graphene oxide (rGO) with XeF2 or F2/BF3 in aHF is reported in this paper. Characterization performed by HAADF-STEM and NMR confirm the formation of C–F bonds, which is also suggested by the color change from graphite grey to light yellow. F-rGO has been used as an interlayer additive supported by a glass fiber separator in lithium-sulfur (Li-S) batteries Electrochemical cycling of Li-S batteries has confirmed the beneficial role of F-rGO separators.
COBISS.SI-ID: 29021479
In this work we compare the sorption properties of manganese modified zeolite silicalite-1 (MnS-1) with a cathode composite containing SBA-15 additive and a cathode composite without additive. Careful analysis using XPS and FIB microscopy equipped with EDX show improved retention of polysulphide species within cathode composite in the case of MnS-1 zeolite as additive.
COBISS.SI-ID: 5591322
We prepared carbon substrates from different types of organic substances which can be prepared from biomass. Carbon substrates were prepared by salt melt sol gel synthesis method and used as substrates for the impregnation with sulphur. Their properties were studied in the Li-S batteries by using electrochemical characterization.
COBISS.SI-ID: 5771802