Invention Grant
- Patent Title: Metal oxide stabilized platinum-based ORR catalyst
- Patent Title (中): 金属氧化物稳定的铂基ORR催化剂
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Application No.: US14316945Application Date: 2014-06-27
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Publication No.: US09468909B2Publication Date: 2016-10-18
- Inventor: Jun Yang , Chunchuan Xu , Patrick Pietrasz , Kerrie Gath , Benjamin Pence , Mark John Jagner , James Waldecker , Shinichi Hirano , Michael Alan Tamor
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Brooks Kushman P.C.
- Agent Damian Porcari
- Main IPC: H01M4/92
- IPC: H01M4/92 ; B01J23/648 ; B01J37/025 ; H01M4/86 ; B01J21/18 ; B01J37/02 ; B01J35/00

Abstract:
In at least one embodiment, an oxygen reduction reaction catalyst (ORR) and a method for making the catalyst are provided. The method may include depositing a metal oxide on a graphitized carbon or graphene substrate. A platinum catalyst may then be deposited over the metal oxide to provide an ORR catalyst for use in, for example, a PEMFC. The metal oxide may be niobium oxide and may have an amorphous structure. The platinum catalyst may form a thin, electrically interconnected network structure overlaying the metal oxide. The ORR catalyst may be prepared by alternating the deposition of the metal oxide and the platinum catalyst, for example, using physical vapor deposition. The ORR catalyst may have a specific activity of at least 1,000 μA/cm2 Pt and may approach or achieve bulk Pt activity.
Public/Granted literature
- US20150375208A1 METAL OXIDE STABILIZED PLATINUM-BASED ORR CATALYST Public/Granted day:2015-12-31
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