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    • 5. 发明申请
    • CATALYST SYSTEM AND METHOD FOR THE PHOTOLYSIS OF WATER
    • 催化剂体系和水分光化学方法
    • US20130037414A1
    • 2013-02-14
    • US13318525
    • 2010-05-03
    • Sigrid ObenlandChristian Fischer
    • Sigrid ObenlandChristian Fischer
    • C25B1/04C25B1/06C25B9/00
    • C01B3/042B01J21/063B01J23/462B01J23/6527B01J27/04B01J27/045B01J31/223B01J33/00B01J35/004B01J35/04B01J37/0215B01J37/0219B01J37/0244B01J37/0248B01J37/20B01J2531/72C01B13/0207C01B2203/1023Y02E60/364Y02E60/366
    • A monolithic catalyst system for the cleavage of water into hydrogen and oxygen with the aid of light comprises a first photoactive material capable by itself or together with one or more of an auxiliary material and an auxiliary catalyst of generating oxygen and protons from water, when irradiated with light having a wavelength ≧420 nm of generating oxygen and protons from water, and a second photoactive material selected from gallium arsenide, copper indium disulphide/selenide, copper indium gallium disulphide/selenide and cadmium sulphide/selenide/telluride and having a water resistant coating transparent to visible light capable of the reducing protons in water to hydrogen, when irradiated with visible light. The first photoactive material and the second photoactive material are supported on at least one substrate and are in electrical contact, particularly in direct electrical contact, exclusively via one or more electron-conducting materials. The first photoactive material is not silicon, a III-V semiconductor or II-VI semiconductor or II-VI semiconductor or similar semiconductor having divalent or trivalent cations and anions of the groups Va and VIa of the periodic table of elements or semiconductor which is comprised of elements of the groups Ib (copper group), IIa, and VI or another inorganic photoconductor which is used in photovoltaic. Also disclosed is a process for cleaving water into hydrogen and oxygen with the aid of light using the catalyst system.
    • 用于借助于光将水切割成氢和氧的整体式催化剂体系包括第一光活性材料,其本身或与辅助材料和辅助催化剂一起产生氧和质子的辅助催化剂,当照射时 具有波长≥420nm的来自水的光和质子的光,以及选自砷化镓,二硫化铟/硒化物,铜铟镓二硒化物/硒化物和硫化镉/硒化物/碲化物的第二光活性材料,并具有防水性 当用可见光照射时,对能够将水中的还原质子的可见光透明化为氢。 第一光活性材料和第二光活性材料被支撑在至少一个基底上,并且特别是通过一种或多种导电材料电接触,特别是直接电接触。 第一光活性材料不是硅,具有二价或三价阳离子的III-V半导体或II-VI半导体或II-VI半导体或类似的半导体或元素或半导体的元素周期表的基团Va和VIa的阴离子 的Ib族(铜基),IIa和VI族的元素或用于光伏的其它无机光电导体。 还公开了使用催化剂体系借助于光将水分解成氢和氧的方法。