• 专利标题:   Oxygen generation catalyst useful in an electrochemical or photoelectrochemical device, comprises a graphene oxide layer, and a nickel-iron layered double hydroxide layer supported on the surface of the graphene oxide layer.
  • 专利号:   US2018073153-A1, JP2018043193-A
  • 发明人:   YAMADA A, MIKOSHIBA S, ONO A, KUDO Y, TAMURA J, KITAGAWA R, TSUTSUMI E, YAMAGIWA M, SUGANO Y, MOTOSHIGE A, KANNO Y, TAMURA A
  • 专利权人:   TOSHIBA KK, TOSHIBA KK
  • 国际专利分类:   B05D001/00, C25B001/00, C25B001/04, C25B011/04, C25D009/04, B01J031/28, B01J035/02, B01J037/02, B01J037/34, C01B013/02, C25B001/10, C25B009/00, H01G009/20
  • 专利详细信息:   US2018073153-A1 15 Mar 2018 C25B-011/04 201825 Pages: 9 English
  • 申请详细信息:   US2018073153-A1 US449000 03 Mar 2017
  • 优先权号:   JP179716

▎ 摘  要

NOVELTY - Oxygen generation catalyst (100) comprises a graphene oxide layer (103), and a nickel-iron layered double hydroxide (104) layer supported on the surface of the graphene oxide layer, where the graphene oxide layer has an average thickness of 0.33-4 nm. USE - The oxygen generation catalyst is useful in an electrochemical or photoelectrochemical device. ADVANTAGE - The oxygen generation catalyst exhibits excellent optical transparency, catalytic activity and durability, and provides a highly efficient and highly durable electrochemical or photoelectrochemical device. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a chemical reactor comprising the oxygen generation catalyst which comprises the graphene oxide layer and the nickel-iron layered double hydroxide layer supported on the surface of the graphene oxide layer, a reduction catalyst comprising a carbon dioxide reduction catalyst, and a power supply element connected to the oxygen generation catalyst and the reduction catalyst; and (2) producing the oxygen generation catalyst comprising forming a graphene oxide layer by coating and then drying a graphene oxide-containing composition on a substrate surface, and electrodepositing a nickel-iron layered double hydroxide on the surface of the graphene oxide layer using an aqueous solution containing iron ions and nickel ions. DESCRIPTION OF DRAWING(S) - The figure shows a schematic cross-sectional view of the oxygen generation catalyst. Oxygen generation catalyst (100) Substrate (101) Conductive layer (102) Graphene oxide layer (103) Nickel-iron layered double hydroxide (104)