Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Cl. Bohnke"'
Publikováno v:
Solid State Ionics. 176:73-80
The use of the high lithium-conductive perovskite compound Li3xLa2/3−x 1/3−xTiO3 for the detection of H+ species in aqueous solution was investigated. The compound was synthetized by the sol–gel route and heat treatments at temperature between
Autor:
Cl. Bohnke, Jean-Louis Fourquet
Publikováno v:
Electrochimica Acta. 48:1869-1878
The ceramic Li 3 x La 2/3− x , 1/3−2 x TiO 3 is used, in an all-solid-state configuration, as pH-sensor in aqueous buffer solution. This ceramic displays a pH sensitivity comparable to the one obtained with a commercial glass electrode and does n
Publikováno v:
Sensors and Actuators B: Chemical. 89:240-247
The use of the high lithium-conductive perovskite compound Li 3 x La 2/3− x □ 1/3−2 x TiO 3 (LLTO) for the detection of ionic species in aqueous solution is investigated. A linear response in different pH-buffers is obtained with two configurat
Publikováno v:
Electrochimica Acta. 38:1935-1940
Electrochromism in WO3 evaporated thin films can be used in many practical devices. These systems are made of tungsten trioxide vacuum evaporated onto transparent and conductive substrates, ie fluorine doped tin oxide (SnO2:F) or indium-tin oxide (IT
Autor:
Cl. Bohnke, M. Rezrazi
Publikováno v:
Materials Science and Engineering: B. 10:313-320
This paper deals with the variations in the electrical components (resistances, capacitances and constant phase element) of an electrochromic electrode during colouring-bleaching cycling. The complex impedance method is used to determine these parame
Publikováno v:
Solid State Ionics. 6:121-128
The performances of electrochromic cells containing evaporated amorphous WO3 thin films as electrochromic material in 1M LiClO4-propylene carbonate-water electrolytes are presented. Much attention has been paid to some parameters such as the thicknes
Heat treatment of amorphous electrochromic WO3 thin films deposited onto indium-tin oxide substrates
Autor:
O. Bohnke, Cl. Bohnke
Publikováno v:
Journal of Applied Electrochemistry. 18:715-723
Electrochromic tungsten oxide thin films, obtained by vacuum evaporation, were studied before and after heat treatment between 25 and 250°C for 2 h in air. Electrochromic properties were investigated in acid electrolyte by simultaneous measurements
Publikováno v:
Displays. 3:39-43
This paper describes a system using microprocessors to store optical data obtained during coloration and bleaching of WO3 thin films and to restitute them after treatment. Such a device gives us the ability quickly to determine the characteristics of
Publikováno v:
Solid State Ionics. 6:267-273
The performances of electrochromic cells with evaporated amorphous WO 3 thin film as electrochromic material in (2.5 M) LiClO 4 -dioxolane-water electrolytes are presented. A comparison with the results previously obtained in propylene carbonate inst
Autor:
Odile Bohnke, Cl. Bohnke
Publikováno v:
Displays. 9:199-206
This paper deals with a comparison between the electrochromic properties of tungsten oxide obtained by vacuum evaporation of WO 3 powder, anodic oxidation of W sheets and thermal oxidation of tungsten oxides obtained by chemical vapour deposited (CVD