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公开(公告)号:US10944114B2
公开(公告)日:2021-03-09
申请号:US15776092
申请日:2016-12-12
发明人: Prashant N. Kumta , Prasad P. Patel , Moni K. Datta , Oleg Velikokhatnyi , Prashanth J. Hanumantha , Ramalinga Kuruba , Shrinath Ghadge
IPC分类号: H01M4/90 , H01M4/88 , H01M8/08 , H01M8/1233 , H01M8/1018 , B01J27/135 , B82Y30/00
摘要: The invention provides noble metal-free electro-catalyst compositions for use in acidic media, e.g., acidic electrolyte. The noble metal-free electro-catalyst compositions include non-noble metal absent of noble metal. The non-noble metal is non-noble metal oxide, and typically in the form of any configuration of a solid or hollow nano-material, e.g., nano-particles, a nanocrystalline thin film, nanorods, nanoshells, nanoflakes, nanotubes, nanoplates, nanospheres and nanowhiskers or combinations of myriad nanoscale architecture embodiments. Optionally, the noble metal-free electro-catalyst compositions include dopant, such as, but not limited to halogen. Acidic media includes oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells, and direct methanol fuel cells and oxygen evolution reaction (OER) in PEM-based water electrolysis and metal air batteries, and hydrogen generation from solar energy and electricity-driven water splitting.
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公开(公告)号:US20180331369A1
公开(公告)日:2018-11-15
申请号:US15776092
申请日:2016-12-12
发明人: Prashant N. Kumta , Prasad P. Patel , Moni K. Datta , Oleg Velikokhatnyi , Prashanth J. Hanumantha , Ramalinga Kuruba , Shrinath Ghadge
IPC分类号: H01M4/90 , H01M4/88 , H01M8/1233 , H01M8/08
CPC分类号: H01M4/9016 , B01J27/135 , B82Y30/00 , H01M4/881 , H01M4/8825 , H01M8/08 , H01M8/1018 , H01M8/1233 , Y02E60/523
摘要: The invention provides noble metal-free electro-catalyst compositions for use in acidic media, e.g., acidic electrolyte. The noble metal-free electro-catalyst compositions include non-noble metal absent of noble metal. The non-noble metal is non-noble metal oxide, and typically in the form of any configuration of a solid or hollow nano-material, e.g., nano-particles, a nanocrystalline thin film, nanorods, nanoshells, nanoflakes, nanotubes, nanoplates, nanospheres and nanowhiskers or combinations of myriad nanoscale architecture embodiments. Optionally, the noble metal-free electro-catalyst compositions include dopant, such as, but not limited to halogen. Acidic media includes oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells, and direct methanol fuel cells and oxygen evolution reaction (OER) in PEM-based water electrolysis and metal air batteries, and hydrogen generation from solar energy and electricity-driven water splitting.
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