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公开(公告)号：US20240133058A1
公开(公告)日：2024-04-25
申请号：US18300380
申请日：2023-04-13
发明人： Ziyang Huo , Lihui Wang , Kenneth X. Hua , Sichao Ma , Edward Izett , Sara Hunegnaw , Ajay R. Kashi , Etosha R. Cave , Kendra P. Kuhl , Maxwell Goldman , Angelica L. Reyes , Kathryn L. Corp
IPC分类号： C25B9/23 , C08F293/00 , C25B1/23 , C25B13/02 , C25B13/08
CPC分类号： C25B9/23 , C08F293/00 , C25B1/23 , C25B13/02 , C25B13/08
摘要： Provided herein are membrane electrode assemblies (MEAs) for COx reduction. According to various embodiments, the MEAs are configured to address challenges particular to COx including managing water in the MEA. Bipolar and anion-exchange membrane (AEM)-only MEAs are described along with components thereof and related methods of fabrication.
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公开(公告)号：US11680328B2
公开(公告)日：2023-06-20
申请号：US17247036
申请日：2020-11-24
发明人： Ziyang Huo , Lihui Wang , Kenneth X. Hua , Sichao Ma , Edward Izett , Sara Hunegnaw , Ajay R. Kashi , Etosha R. Cave , Kendra P. Kuhl , Maxwell Goldman , Angelica L. Reyes , Kathryn L. Corp
IPC分类号： C25B9/23 , C25B1/23 , C08F293/00 , C25B13/02 , C25B13/08
CPC分类号： C25B9/23 , C08F293/00 , C25B1/23 , C25B13/02 , C25B13/08
摘要： Provided herein are membrane electrode assemblies (MEAs) for COx reduction. According to various embodiments, the MEAs are configured to address challenges particular to COx including managing water in the MEA. Bipolar and anion-exchange membrane (AEM)-only MEAs are described along with components thereof and related methods of fabrication.
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公开(公告)号：US20240327999A1
公开(公告)日：2024-10-03
申请号：US18736188
申请日：2024-06-06
发明人： Etosha R. Cave , Sichao Ma , Qun Zeng , Sara Hunegnaw , Kendra P. Kuhl , George Leonard , Ashley D. Mishra , Ajay R. Kashi
摘要： Disclosed are membrane electrode assemblies having a cathode layer comprising a carbon oxide reduction catalyst that promotes reduction of a carbon oxide; an anode layer comprising a catalyst that promotes oxidation of a water; a polymer electrolyte membrane (PEM) layer disposed between, and in contact with, the cathode layer and the anode layer; and a salt having a concentration of at least about 10 uM in at least a portion of the MEA.
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公开(公告)号：US11417901B2
公开(公告)日：2022-08-16
申请号：US16719359
申请日：2019-12-18
发明人： Sichao Ma , Sara Hunegnaw , Ziyang Huo , Kendra P. Kuhl , Etosha R. Cave , Ashley D. Mishra , Edward Izett , Alvin Leung , Timothy A. Bekkedahl
IPC分类号： H01M8/04 , H01M8/04537 , C25B9/23
摘要： Provided herein are methods for operating carbon oxide (COx) reduction reactors (CRR) and related apparatus. In some embodiments, the methods involve shutting off, reducing, or otherwise controlling current during various operation stages including hydration, break-in, normal operation, planned shut-offs, and extended shutoff or storage periods.
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公开(公告)号：US20240145745A1
公开(公告)日：2024-05-02
申请号：US18542508
申请日：2023-12-15
发明人： Sichao Ma , Sara Hunegnaw , Ziyang Huo , Kendra P. Kuhl , Etosha R. Cave , Ashley D. Mishra , Edward Izett , Alvin Leung , Timothy A. Bekkedahl
IPC分类号： H01M8/04537 , C25B9/23
CPC分类号： H01M8/04574 , C25B9/23
摘要： Provided herein are methods for operating carbon oxide (COx) reduction reactors (CRR) and related apparatus. In some embodiments, the methods involve shutting off, reducing, or otherwise controlling current during various operation stages including hydration, break-in, normal operation, planned shut-offs, and extended shutoff or storage periods.
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公开(公告)号：US20230175146A1
公开(公告)日：2023-06-08
申请号：US18063508
申请日：2022-12-08
发明人： Ajay R. Kashi , Aya K. Buckley , Sichao Ma , Kendra P. Kuhl , Sara Hunegnaw , Etosha R. Cave , Luka Stevic
IPC分类号： C25B3/26 , C25B13/00 , C25B9/19 , C25B11/075 , C07C1/12
CPC分类号： C25B3/26 , C25B13/00 , C25B9/19 , C25B11/075 , C07C1/12
摘要： Systems and methods for increasing the concentration of a desired COx reduction reaction product are described. In some embodiments, the systems and methods include ethylene purification.
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公开(公告)号：US11578415B2
公开(公告)日：2023-02-14
申请号：US16697066
申请日：2019-11-26
发明人： Etosha R. Cave , Sichao Ma , Qun Zeng , Sara Hunegnaw , Kendra P. Kuhl , George Leonard , Ashley D. Mishra , Ajay R. Kashi
摘要： Disclosed are membrane electrode assemblies having a cathode layer comprising a carbon oxide reduction catalyst that promotes reduction of a carbon oxide; an anode layer comprising a catalyst that promotes oxidation of a water; a polymer electrolyte membrane (PEM) layer disposed between, and in contact with, the cathode layer and the anode layer; and a salt having a concentration of at least about 10 uM in at least a portion of the MEA.
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公开(公告)号：US20220393203A1
公开(公告)日：2022-12-08
申请号：US17662225
申请日：2022-05-05
发明人： Sichao Ma , Sara Hunegnaw , Ziyang Huo , Kendra P. Kuhl , Etosha R. Cave , Ashley D. Mishra , Edward Izett , Alvin Leung , Timothy A. Bekkedahl
IPC分类号： H01M8/04537 , C25B9/23
摘要： Provided herein are methods for operating carbon oxide (COX) reduction reactors (CRR) and related apparatus. In some embodiments, the methods involve shutting off, reducing, or otherwise controlling current during various operation stages including hydration, break-in, normal operation, planned shut-offs, and extended shutoff or storage periods.
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公开(公告)号：US12116683B2
公开(公告)日：2024-10-15
申请号：US16736615
申请日：2020-01-07
发明人： Sara Hunegnaw , Ajay R. Kashi , Kendra P. Kuhl , Morgan George , Sichao Ma , Ziyang Huo , Etosha R. Cave , Kenneth X. Hua
IPC分类号： C25B9/23 , C25B3/25 , C25B11/075 , C25B11/091 , C25B13/08
CPC分类号： C25B9/23 , C25B3/25 , C25B11/075 , C25B11/091 , C25B13/08
摘要： Provided herein are systems and methods for operating carbon oxide (COx) reduction reactors (CRRs) for producing methane (CH4). Embodiments of the systems and methods may also be used for producing other organic compounds including alcohols, carboxylic acids, and other hydrocarbons such as ethylene (CH2CH2). According to various embodiments, the systems and methods may be characterized by one or more of the following features. In some embodiments, a membrane electrode assembly (MEA) includes a cathode catalyst layer with a relatively low catalyst loading. In some embodiments, a bipolar MEA includes a thin cation-conducting layer and a thin anion-conducting layer, with the cation-conducting layer being thicker than the anion-conducting layer. In other embodiments a pure anion exchange polymer only membrane may be used to bridge the cathode catalyst and the anode catalyst. These and other features are described further below.
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公开(公告)号：US12043912B2
公开(公告)日：2024-07-23
申请号：US18145702
申请日：2022-12-22
发明人： Etosha R. Cave , Sichao Ma , Qun Zeng , Sara Hunegnaw , Kendra P. Kuhl , George Leonard , Ashley D. Mishra , Ajay R. Kashi
摘要： Disclosed are membrane electrode assemblies having a cathode layer comprising a carbon oxide reduction catalyst that promotes reduction of a carbon oxide; an anode layer comprising a catalyst that promotes oxidation of a water; a polymer electrolyte membrane (PEM) layer disposed between, and in contact with, the cathode layer and the anode layer; and a salt having a concentration of at least about 10 uM in at least a portion of the MEA.
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