Photoelectrode, method for manufacturing same, and photoelectrochemical cell
A photoelectrochemical cell and photoelectrode technology, applied in electrodes, photovoltaic power generation, electrolytic capacitors, etc., can solve the problems of heavy storage batteries and uncomfortable movement.
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Embodiment approach 1
[0079] The photoelectrode of this embodiment includes a first conductor as a substrate, and a second conductor arranged on the first conductor. The second conductor has a transparent porous structure including a three-dimensional continuous skeleton and pores formed by the skeleton. The photoelectrode of this embodiment further includes a visible light photocatalyst arranged inside the pores of the second conductor. In addition, the visible light photocatalyst may be arranged at least inside the pores of the second electric conductor, and may also be arranged on the surface of the second electric conductor. In addition, the visible light photocatalyst may be in the form of particles or film. The photoelectrode of this embodiment can also be regarded as having a photocatalyst layer including a visible light photocatalyst disposed inside the pores of the second conductor.
[0080] The skeleton of the second conductor is three-dimensionally continuous, including the case where ...
Embodiment approach 2
[0105] One embodiment of the photoelectrochemical cell of the present disclosure will be described.
[0106] image 3 An example of the photoelectrochemical cell of this embodiment is shown. image 3 The illustrated photoelectrochemical cell 300 includes a photoelectrode 310 , a counter electrode 320 , an electrolytic solution 340 containing water, and a container 330 for accommodating the photoelectrode 310 , counter electrode 320 , and electrolytic solution 340 .
[0107] As the photoelectrode 310 , the photoelectrode described in Embodiment 1 is used. That is, the photoelectrode 310 includes a first conductor 311 as a substrate, and a complex 312 composed of a second conductor and a visible light photocatalyst arranged on the first conductor 311 . As described in Embodiment 1, the second conductor has a transparent porous structure including a three-dimensional continuous skeleton and pores formed by the skeleton. The visible light photocatalyst is arranged inside the po...
Embodiment 1
[0125] (1) Step of forming the second conductor (antimony-doped tin oxide: ATO)
[0126] An ATO substrate was prepared as the first conductor. ATO powder with a primary particle diameter of 120 to 250 nm was used as the transparent conductive oxide for producing the second conductor. An ink obtained by dispersing ATO powder in an organic solvent was prepared, spin-coated on an ATO substrate to form a film, and dried on a hot plate set at 120° C. for about 5 minutes. The condition of the spin coating was to rotate at a rotation speed of 400 rpm for 20 seconds, and then to rotate at a rotation speed of 1500 rpm for 10 seconds. After drying, the film on the ATO substrate was fired in a mixed gas flow of oxygen and nitrogen. For firing, the furnace was heated from room temperature to 500°C at a temperature increase rate of 100°C / h, kept at 500°C for 1 hour, then lowered at a temperature decrease rate of 100°C / h, and the film was taken out when it reached room temperature.
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Abstract
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