Photocatalyst electrode for water decomposition

US2017183787A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2017183787-A1
Application numberUS-201715455983-A
CountryUS
Kind codeA1
Filing dateMar 10, 2017
Priority dateSep 12, 2014
Publication dateJun 29, 2017
Grant date

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

The present invention is to provide a photocatalyst electrode for water decomposition exhibiting a high photocurrent density and having reduced dark current. The photocatalyst electrode for water decomposition of the present invention has a photocatalyst layer and a current collector layer that is formed by a vapor deposition method and is disposed on the photocatalyst layer.

First claim

Opening claim text (preview).

What is claimed is: 1 . A photocatalyst electrode for water decomposition comprising: a photocatalyst layer; and a current collector layer that is formed by a vapor deposition method and is disposed on the photocatalyst layer. 2 . The photocatalyst electrode for water decomposition according to claim 1 , further comprising: a contact layer including a semiconductor or a conductor between the photocatalyst layer and the current collector layer, wherein the contact layer is formed by a vapor deposition method. 3 . The photocatalyst electrode for water decomposition according to claim 1 , wherein the vapor deposition method is a resistance heating vapor deposition method or an ion beam vapor deposition method. 4 . The photocatalyst electrode for water decomposition according to claim 2 , wherein the vapor deposition method is a resistance heating vapor deposition method or an ion beam vapor deposition method. 5 . The photocatalyst electrode for water decomposition according to claim 1 , wherein the current collector layer includes tin or gold. 6 . The photocatalyst electrode for water decomposition according to claim 2 , wherein the current collector layer includes tin or gold. 7 . The photocatalyst electrode for water decomposition according to claim 3 , wherein the current collector layer includes tin or gold. 8 . The photocatalyst electrode for water decomposition according to claim 4 , wherein the current collector layer includes tin or gold. 9 . The photocatalyst electrode for water decomposition according to claim 1 , wherein the current collector layer includes tin. 10 . The photocatalyst electrode for water decomposition according to claim 2 , wherein the current collector layer includes tin. 11 . The photocatalyst electrode for water decomposition according to claim 3 , wherein the current collector layer includes tin. 12 . The photocatalyst electrode for water decomposition according to claim 4 , wherein the current collector layer includes tin. 13 . The photocatalyst electrode for water decomposition according to claim 5 , wherein the current collector layer includes tin. 14 . The photocatalyst electrode for water decomposition according to claim 6 , wherein the current collector layer includes tin. 15 . The photocatalyst electrode for water decomposition according to claim 7 , wherein the current collector layer includes tin. 16 . The photocatalyst electrode for water decomposition according to claim 8 , wherein the current collector layer includes tin. 17 . The photocatalyst electrode for water decomposition according to claim 1 , wherein the resistance of the current collector layer is 4.0Ω/□ or less. 18 . The photocatalyst electrode for water decomposition according to claim 2 , wherein the resistance of the current collector layer is 4.0Ω/□ or less. 19 . The photocatalyst electrode for water decomposition according to claim 3 , wherein the resistance of the current collector layer is 4.0Ω/□ or less. 20 . The photocatalyst electrode for water decomposition according to claim 4 , wherein the resistance of the current collector layer is 4.0Ω/□ or less.

Assignees

Inventors

Classifications

  • Nanoparticles · CPC title

  • characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77) · CPC title

  • by electrolysis of water · CPC title

  • Operations & Transport · mapped topic

  • Chemistry & Metallurgy · mapped topic

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What does patent US2017183787A1 cover?
The present invention is to provide a photocatalyst electrode for water decomposition exhibiting a high photocurrent density and having reduced dark current. The photocatalyst electrode for water decomposition of the present invention has a photocatalyst layer and a current collector layer that is formed by a vapor deposition method and is disposed on the photocatalyst layer.
Who is the assignee on this patent?
Fujifilm Corp, Japan Tech Res Ass Of Artificial Photosynthetic Chemical Process, Univ Tokyo, and 1 more
What technology area does this patent fall under?
Primary CPC classification C25B11/0405. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Jun 29 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).