RU2008129184A

RU2008129184A - ELECTROLYZER FOR OZONE PRODUCTION

Info

Publication number: RU2008129184A
Application number: RU2008129184/15A
Authority: RU
Inventors: Даниель САЛАИ (HU); Даниель САЛАИ; Норберт ВАРГА (HU); Норберт ВАРГА; Ференц БОНЦ (HU); Ференц Бонц; Ференц ДАРВАС (HU); Ференц ДАРВАС; Тамаш КАРАНЧИ (HU); Тамаш Каранчи; Лайош ГЕДЕРХАЗИ (HU); Лайош Гедерхази
Original assignee: ТалесНано Нанотечнологиаи Зрт. (HU); Талеснано Нанотечнологиаи Зрт.
Priority date: 2005-12-23
Filing date: 2006-12-22
Publication date: 2010-01-27
Also published as: WO2007072098A2; JP2009520881A; CN101360848A; NO20083195L; HU0501204D0; IL192391A0; AU2006327902A1; US20080314740A1; WO2007072098A3; EP1979509A2; HUP0501204A2

Abstract

1. Электролизер для получения озона, содержащий: ! отрицательный электрод (13); ! генерирующий озон положительный электрод (16), включающий смесь оксида свинца (IV) и политетрафторэтилена; ! мембрану (15), расположенную между отрицательным и положительным электродами (13, 16); и ! электропроводящую, проницаемую для жидкости и газа первую электродную основу (17), контактирующую со стороной положительного электрода (16), противоположной стороне, обращенной к мембране (15), причем вышеуказанная сторона электродной основы (17) имеет поверхность, покрытую слоем, содержащим платину, отличающийся тем, что ! положительный электрод (16) изготовлен из смеси, полученной при температуре окружающей среды посредством формования при высоком давлении частиц диоксида свинца коллоидного размера и волокон из политетрафторэтилена, имеющих размеры не более 1 мм; и ! отрицательный электрод (13) прижат к стороне мембраны (15), противоположной стороне, обращенной к положительному электроду (16), с помощью определенной прижимающей силы и сформирован на поверхности пористой второй электродной основы (12). ! 2. Электролизер по п.1, отличающийся тем, что волокна из политетрафторэтилена, входящие в состав смеси, имеют толщину не более 100 мкм. ! 3. Электролизер по п.1, отличающийся тем, что положительный электрод (16) содержит политетрафторэтилен в количестве не менее 10 мас.%. ! 4. Электролизер по п.1, отличающийся тем, что вторая электродная основа (12) выполнена из фритты, сформованной из частиц электропроводящего материала при температуре окружающей среды и на открытом воздухе. ! 5. Электролизер по п.4, отличающийся тем, что вторая электродная основа (12) имеет градиент размера1. Electrolyzer for ozone production, containing:! negative electrode (13); ! generating ozone positive electrode (16), including a mixture of lead (IV) oxide and polytetrafluoroethylene; ! membrane (15) located between the negative and positive electrodes (13, 16); and! an electrically conductive, liquid and gas-permeable first electrode base (17) in contact with a side of the positive electrode (16) opposite to the side facing the membrane (15), the said side of the electrode base (17) having a surface coated with a layer containing platinum, different in that! the positive electrode (16) is made of a mixture obtained at ambient temperature by high-pressure spinning of lead dioxide particles of colloidal size and polytetrafluoroethylene fibers having dimensions of not more than 1 mm; and! the negative electrode (13) is pressed against the side of the membrane (15) opposite to the side facing the positive electrode (16) by a certain pressing force, and is formed on the surface of the porous second electrode base (12). ! 2. An electrolyzer according to claim 1, characterized in that the polytetrafluoroethylene fibers included in the mixture have a thickness of not more than 100 microns. ! 3. Electrolyzer according to claim 1, characterized in that the positive electrode (16) contains polytetrafluoroethylene in an amount of at least 10 wt%. ! 4. An electrolyzer according to claim 1, characterized in that the second electrode base (12) is made of a frit formed from particles of electrically conductive material at ambient and outdoor temperatures. ! 5. Electrolyzer according to claim 4, characterized in that the second electrode base (12) has a size gradient

Claims

1. An electrolyzer for producing ozone containing:

negative electrode (13);

an ozone generating positive electrode (16) comprising a mixture of lead (IV) oxide and polytetrafluoroethylene;

a membrane (15) located between the negative and positive electrodes (13, 16); and

electrically conductive, permeable to liquid and gas, the first electrode base (17) in contact with the side of the positive electrode (16), the opposite side facing the membrane (15), and the above side of the electrode base (17) has a surface coated with a layer containing platinum, characterized in that

the positive electrode (16) is made of a mixture obtained at ambient temperature by molding, at high pressure, particles of lead dioxide of colloidal size and fibers of polytetrafluoroethylene having a size of not more than 1 mm; and

the negative electrode (13) is pressed against the side of the membrane (15), the opposite side facing the positive electrode (16), using a certain pressing force and is formed on the surface of the porous second electrode base (12).

2. The electrolyzer according to claim 1, characterized in that the polytetrafluoroethylene fibers included in the mixture have a thickness of not more than 100 μm.

3. The electrolyzer according to claim 1, characterized in that the positive electrode (16) contains polytetrafluoroethylene in an amount of at least 10 wt.%.

4. The electrolyzer according to claim 1, characterized in that the second electrode base (12) is made of frit, molded from particles of an electrically conductive material at ambient temperature and in the open air.

5. The electrolyzer according to claim 4, characterized in that the second electrode base (12) has a particle size gradient in the depth direction, with the smallest particles facing the negative electrode (13).

6. The electrolyzer according to claim 4, characterized in that the electrically conductive material of the second electrode base (12) is titanium.

7. The cell according to claim 6, characterized in that the negative electrode (13) contains platinum black deposited on it in the form of a suspension at ambient temperature and in the open air.

8. The electrolyzer according to claim 1, characterized in that the membrane (15) is a solid electrolyte membrane with conductivity for protons.

9. The electrolyzer according to claim 1, characterized in that the positive electrode (16) and the first electrode base (17) together form a single unit.