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公开(公告)号：US20210340683A1
公开(公告)日：2021-11-04
申请号：US17085720
申请日：2020-10-30
Applicant: University of Tennessee Research Foundation
Inventor： Feng Yuan Zhang , Kui Li
Abstract: A ruthenium-copper (RuCu) nano-sponge (NSP) electrocatalyst for use in the electrolytic reduction of nitrogen to provide ammonia is described. The RuCu NSP can be prepared as a porous nanoparticle comprising a RuCu alloy via facile reduction of Ru and Cu precursors under ambient conditions. Electrodes prepared with surface disposed RuCu NSPs can be used to prepare ammonia from nitrogen with good yields and Faradaic efficiency at room temperature and atmospheric pressure.
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公开(公告)号：US20230047374A1
公开(公告)日：2023-02-16
申请号：US17717821
申请日：2022-04-11
Applicant: University of Tennessee Research Foundation
Inventor： Feng Yuan Zhang , Lei Ding , Kui Li , Weitian Wang , Shule Yu , Douglas Scott Aaron , Matthew M. Mench , Frida Helena Roenning , Anirban Roy
IPC: H01M8/026 , H01M8/0265 , H01M8/0232 , H01M8/0234
Abstract: The presently disclosed subject matter relates to devices, systems, and methods of producing an improved fluid flow assembly and liquid/gas diffusion layer in solid polymer electrolyte electrochemical cells. In one aspect, a fluid flow assembly for a polymer electrolyte water electrolyzer includes a flow field having an inlet, an outlet, and a plurality of discrete lands arranged within the flow field. A liquid/gas diffusion layer is positioned in communication with the flow field between the inlet and the outlet, the liquid/gas diffusion layer having a solid substrate through which a plurality of pores is formed. The disclosed bipolar plate flow field and liquid/gas diffusion layer could work together or separately with other types of porous transport layers or bipolar plates to enhance the water/gas transport. In these configurations, the lands can be arranged and configured such that the plurality of pores are substantially unobstructed by the lands.
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公开(公告)号：US20250023059A1
公开(公告)日：2025-01-16
申请号：US18684264
申请日：2022-08-16
Applicant: University of Tennessee Research Foundation
Inventor： Feng Yuan Zhang , Lei Ding , Kui Li , Zhiqiang Xie , Weitian Wang , Shule Yu
IPC: H01M4/88 , C25B11/032 , H01M4/92 , H01M8/0232 , H01M8/0245 , H01M8/10 , H01M8/1004
Abstract: The presently disclosed subject matter relates to devices, systems, and methods for fabricating a solid polymer electrolyte electrode assembly are provided. One or more electrode for a solid polymer electrolyte electrode assembly includes a porous substrate configured as a liquid/gas diffusion layer and an ionomer-free catalyst coated on the substrate.
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公开(公告)号：US20230047140A1
公开(公告)日：2023-02-16
申请号：US17717899
申请日：2022-04-11
Applicant: University of Tennessee Research Foundation
Inventor： Feng Yuan Zhang , Lei Ding , Kui Li , Zhiqiang Xie , Weitian Wang , Shule Yu
IPC: C25B11/052 , C25B1/04 , C25B9/19 , C25B11/081 , C25B11/075 , C25B13/08
Abstract: The presently disclosed subject matter relates to devices, systems, and methods for fabricating a solid polymer electrolyte electrode assembly are provided. One or more electrode for a solid polymer electrolyte electrode assembly includes a porous substrate configured as a liquid/gas diffusion layer and an ionomer-free catalyst coated on the substrate.
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