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    • 6. 发明授权
    • Electrochromic or photoelectrochromic device
    • 电致变色或光电色装置
    • US06734305B2
    • 2004-05-11
    • US10165318
    • 2002-06-07
    • Bonhôte PierreWalder LorenzGrätzel Michael
    • Bonhôte PierreWalder LorenzGrätzel Michael
    • C07D24146
    • B82Y20/00G02F1/15G02F1/155G02F2202/36
    • An electrochromic or photoelectrochromic device possessing the property of changing color under the effect of an electric voltage and/or of a variation in the intensity of a light radiation, this device comprising at least one cathode and one anode, at least one of these electrodes being constituted at least in part of a transparent or translucent substrate bearing an electrically conductive coating, and an electrolyte arranged between these electrodes, and an electric circuit connecting said cathode and anode, characterized in that at least one of these electrodes carries a coating constituted of at least one nanocrystalline layer of at least one semiconductive material, having a roughness factor equal to at least 20, and a monolayer of electrically active molecules or of an electrically active polymer, said monolayer being absorbed on the surface of this coating, and in that the device contains at least one auxiliary electrically active compound, possibly dissolved in the electrolyte, having the property of being capable of being oxidized or reduced in a reversible manner.
    • 一种具有在电压和/或光辐射强度变化下变色的性质的电致变色或光电变色装置,该装置包括至少一个阴极和一个阳极,这些电极中的至少一个为 构成至少部分具有导电涂层的透明或半透明基板和布置在这些电极之间的电解质,以及连接所述阴极和阳极的电路,其特征在于,这些电极中的至少一个承载由 至少一个半导体材料的至少一个纳米晶层,具有等于至少20的粗糙度因子,以及单层电活性分子或电活性聚合物,所述单层被吸收在该涂层的表面上, 装置含有至少一种可能溶解在电解质中的辅助电活性化合物 具有能够以可逆方式氧化或还原的性质。
    • 9. 发明申请
    • PROCESS FOR MANUFACTURING AN ELECTRODE FOR AN ELECTROCHEMICAL DEVICE
    • 用于制造电化学装置的电极的方法
    • WO1997012382A1
    • 1997-04-03
    • PCT/IB1995000786
    • 1995-09-25
    • ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNEPAPPAS, NicholasGRÄTZEL, Michael
    • ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
    • H01G09/20
    • H01G9/2031Y02E10/542Y02P70/521
    • The present invention aims at improving the catalytic activity of the metallic platinum deposited on the substrate of the counterelectrode (i.e. the cathode), so as to obtain a high value of the catalytic activity on the reduction reaction of triiodide to iodide essentially independant of the nature of the solvent used in the electrolyte. To that effect, the manufacturing process according to the invention is characterized in that said metallic platinum is deposited in the form of a plurality of spheroidal microcrystallite clusters each having a size of less than about 100 nanometers, dispersed over the surface of said substrate, and in that said deposited metallic platinum is submitted to a thermal treatment, carried out at a temperature in the range of about 375 to 400 DEG C, so as to enhance the catalytic properties of the platinum on the oxido-reduction reaction of iodine and triiodide 3I2 + 2e 2I3 in the redox system iodine/iodide.
    • 本发明旨在提高沉积在对电极(即阴极)基底上的金属铂的催化活性,从而获得三碘化物与碘化物的还原反应对催化活性的高值,其基本上独立于自然界 的电解质中使用的溶剂。 为此,根据本发明的制造方法的特征在于,所述金属铂以多个球状微晶簇的形式沉积,每个微球簇具有小于约100纳米的尺寸,分散在所述衬底的表面上,以及 因为所述沉积的金属铂进行热处理,在约375-400℃的温度下进行,以提高铂对碘和三碘化物3I2的氧化还原反应的催化性能 + 2e < - > <==> 2I3 < - >在氧化还原体系碘/碘化物中。