In situ spectroelectrochemical behaviour of nanocrystalline TiO2 thin films electrode fabricated by pulsed laser deposition

Abstract

Nanocrystalline titanium oxide thin films have been successfully deposited on ITO coated glass by pulsed laser ablation of metallic Ti target in O-3/O-2 ambient gases. The intercalation of Li ions in the anatase TiO2 film electrode is examined by cyclic voltammetry. The electrochromic behaviour of TiO2 electrode is investigated by in-situ visible transmittance measurement, and two absorption bands at 420 and 650 nm are observed. The absorption falling and rising in color changing with excellent revisibility is relative to the insertion and deintercalation processes of Li ion. These results suggest that nanocrystalline titanium oxide films fabricated by pulsed laser deposition exhibit excellent spectroelectrochemical property

Fabrication and electrochemical properties of three-dimensional net architectures of anatase TiO2 and spinel Li4Ti5O12 nanofibers

“…2(b), a couple of peaks were observed at 1.18 and 2.33 V versus Li/Li + at the scan rate of 0.001 V s −1 , exhibiting a typical feature of TiO 2 electrode [12,13]. They cor- responded to the insertion and the extraction processes of Li for 3D TiO 2 .…”

“…As typical cathode materials used in rechargeable lithium batteries, TiO 2 and Li 4 Ti 5 O 12 were promising storage lithium materials [12][13][14][15][16][17]. Recently, we reported electrochemical characterization of 3D ordered macroporous (3DOM) anatase TiO 2 electrode by a colloidal crystal templating approach combining with a high temperature calci- nating, and found the destruction of 3DOM TiO 2 film when Li ions are inserted into TiO 2 , indicating that it is rather difficult to realize 3D batteries with using 3DOM anatase TiO 2 electrodes [12].…”

Dinuclear ruthenium and platinum complexes: design, synthesis, characterization and potential applications

“…*H NMR (300 MHz, DMSO- (m, 2H, H4, 3 J = 5Hz, 3 J -6Hz); 2.93 (dt, 2H, H9, 3 J = 7Hz, 3 J = 6Hz); 2.11 (t, 2H, H2, 3 J = 7Hz); 1.64 (m, 2H, H3, 3 J = 7Hz); 1.37 (tq, 2H, H10, 3 J = 7Hz) and 0.81 (t, 3H, HI 1, 3 J = 7Hz). 13 cm" 1 , 3210 cm" 1 , 3105 cm" 1 (3 x NH) and 1670 cm" 1 (OO). !…”

“…Finally, when power requirement is an important parameter, such as in display or memory applications, the memory effect may be considered and electrochromes that do not require a continuous potential to maintain their colored state, are used. Many metal oxides express electrochromism 7 ' 8 but only oxides of tungsten 2 ' 3 ' 9 , iridium 10 , molybdenum 11 , vanadium 12 , titanium 13 , niobium 14 , cobalt 15 , tin 16 , copper 17 and iron 18 have significant activity beyond the visible region of the electromagnetic spectrum (>700 nm). Tungsten oxide is by far the most widely employed electrochrome in visible applications.…”

“…H NMR (300 MHz, DMSO-^): 9.65 (s, 2H, H7); 4.38 (t, 1H, OH, 3 J = 6Hz); 3.37 (m, 2H, H6, 3 J = 6Hz); 2.11 (q, 2H, H9, 3 J = 8Hz); 2.10 (t, 2H, H2, 3 J = 8Hz); 1.50 (m, 2H, H3, 3 J -8Hz); 1.40 (m, 2H, H5, 3 J = 8Hz); 1.30 (m, 2H, H4, 3 J = 8Hz) and 1.00 (t, 3H, H10, 3 J = 8Hz). 13…”