Nanostructured SnO2-TiO2 films as related to lithium intercalation

Voltage-Height Spectroscopy in the Ex Situ Configuration of a Scanning Tunneling Microscope

“…1 For measurements we used mechanically sharpened tips of Pt-Ir (10 wt %) wire 0.5 mm in diameter. Before embarking on spectroscopic measurements, as a rule we would obtain topographic STM images of satisfactory quality, then at selected points of a surface measured several (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) spectra, which were averaged or selected most "typical" curves from the obtained mass of data. Base values of the tunneling current and voltage (corresponding to an equilibrium position of the tip in the course of topographic measurements and before the beginning of spectroscopic measurements) for samples of various nature are given in captions to relevant figures.…”

“…The obvious symmetry of the voltage-height spectra in this case is YUSIPOVICH, VASSILIEV connected with a pronounced semiconducting character of the conduction of the deposit, which possesses a low resistance only at positive values of the tunneling voltage. As a result of doping the deposit by titanium dioxide, there is observed a considerable increase in the dispersity of material, which is accompanied by a decrease in conductance by several orders of magnitude [15] (Figs. 6c-6f).…”

“…In more detail tunneling and microscopic investigations of some objects are presented in [13][14][15].…”

Anodically fabricated TiO2 nanopores for electrocatalytic reduction of aldehydes

“…In recent years much effort has been directed towards the heterogeneous electro catalytic reduction of organic compounds [18]. Metal ionic redox couples such as Ti(IV)/Ti(III), Mn(III)/Mn(II) were used as mediator or electron carrier [19,20].…”

SnO2 and TiO2-supported-SnO2 lithium battery anodes with improved electrochemical performance

“…[18][19][20] The cyclability of the SnO 2 -based lithium anodes has also been improved by metal-oxide buffering of the excessive volume change. [21][22][23][24][25][26] Partially crystallized SnO 2 / TiO 2 electrodes with varying concentrations of TiO 2 were investigated by Chibirova and coworkers, [27][28][29] who incorporated up to 20 mol % TiO 2 , improving the cyclability upon increasing the TiO 2 content. Even though the cycling stability improved, the reversible capacity of their highest TiO 2 -content Ti 0.2 Sn 0.8 O 2 electrodes still dropped to less than 300 mAh g À1 in 40 cycles.…”