MONOLITHIC CATALYST SYSTEM FOR THE PHOTOLYSIS OF WATER
1 Assignment
0 Petitions
Accused Products
Abstract
A monolithic catalyst system for the cleavage of water into hydrogen and oxygen comprises a first photoactive material capable by itself or together with an auxiliary material and/or an auxiliary catalyst when irradiated with light having a wavelength ≧420 nm of generating oxygen and protons from water, and a second photoactive material capable by itself or together with an auxiliary material and/or an auxiliary catalyst when irradiated with light having a wavelength ≧420 nm of reducing protons in water to hydrogen. The first and second photoactive materials are in electrical contact via an electron-conducting material.
18 Citations
32 Claims
-
1-16. -16. (canceled)
-
17. A monolithic catalyst system for the cleavage of water into hydrogen and oxygen with the aid of light, wherein the catalyst system comprises (a) a first photoactive material which, when irradiated with light having a wavelength ≧
- 420 nm, is capable of generating oxygen and protons from water either by itself or together with at least one of an auxiliary material and an auxiliary catalyst, and (b) a second photoactive material which, when irradiated with light having a wavelength ≧
420 nm, is capable of reducing protons in water to hydrogen either by itself or together with at least one of an auxiliary material and an auxiliary catalyst, (a) and (b) being in electrical contact via (c) one or more electron-conducting materials. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
- 420 nm, is capable of generating oxygen and protons from water either by itself or together with at least one of an auxiliary material and an auxiliary catalyst, and (b) a second photoactive material which, when irradiated with light having a wavelength ≧
-
26. A method of generating oxygen and hydrogen from water with the aid of light and a catalyst system, wherein the method comprises contacting a catalyst system comprising (a) a first photoactive material which, when irradiated with light having a wavelength ≧
- 420 nm, is capable of generating oxygen and protons from water either by itself or together with at least one of an auxiliary material and an auxiliary catalyst, and (b) a second photoactive material which, when irradiated with light having a wavelength ≧
420 nm, is capable of reducing protons in water to hydrogen either by itself or together with at least one of an auxiliary material and an auxiliary catalyst, (a) and (b) being in electrical contact via (c) one or more electron-conducting materials, with water or an aqueous fluid or solution at a first location comprising the first photoactive material or at least one of an auxiliary material and an auxiliary catalyst associated therewith, and at a second location comprising the second photoactive material or at least one of an auxiliary material and an auxiliary catalyst associated therewith, and thereafter irradiating with light the water or aqueous fluid or solution in contact with the first location and the water or aqueous fluid or solution in contact with the second location, the first and second locations being in contact with each other such that protons can migrate from the first location to the second location. - View Dependent Claims (27, 28, 29, 30, 31, 32)
- 420 nm, is capable of generating oxygen and protons from water either by itself or together with at least one of an auxiliary material and an auxiliary catalyst, and (b) a second photoactive material which, when irradiated with light having a wavelength ≧
Specification