In this paper we propose a new strategy for the stabilization of active particle size and morphology during heating using stabilizers that form covalent bonds on an active particle surface. The effect of size and morphology stabilization using ceramic precursors is demonstrated on hydrated titania nanotubes. The charge-discharge curves show that the reversible capacity of anatase depends on the particle size and the amount of mesopores while samples having a similar particle size but larger pore volume, are found to show significantly better performance.
COBISS.SI-ID: 4161818
In this paper we show that the rate performance of anatase TiO2 can be significantly improved by addition of a small amount (few percent) of carefully selected oxides such as silica or RuO2. Specifically, silica serves primarily as a suppressant of particle growth during heating of anatase precursor-in our case titania nanotubes. The addition of RuO2 is supposed to enhance the electronic conductivity. The beneficial impact of the combined use of silica and RuO2 in the preparation of anatase-based electrodes is also demonstrated on a commercially available sample of anatase.
COBISS.SI-ID: 4071706