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公开(公告)号：US11518688B2
公开(公告)日：2022-12-06
申请号：US17104358
申请日：2020-11-25
发明人： Gugang Chen , Yi Rao , Xia Li
摘要： All inorganic perovskites for short-wave IR (SWIR) devices having improved chemical stability and long-term stability. Improved methods of making all inorganic perovskites for short-wave IR (SWIR) devices are also disclosed herein.
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公开(公告)号：US11873566B2
公开(公告)日：2024-01-16
申请号：US17428006
申请日：2020-02-26
发明人： Gugang Chen , Yi Rao , Xia Li
IPC分类号： C25B11/091 , C25B3/26 , C25B3/07 , C25B9/17
CPC分类号： C25B11/091 , C25B3/07 , C25B3/26 , C25B9/17
摘要： A method of electrochemical reduction of CO2 includes the use of a catalyst of Cu/Cu2O particles including Cu/Cu2O interfaces. The catalyst may be included in an electrochemical cell for the conversion of CO2 to value-added products. The electrochemical cell may include an anode, a cathode including the Cu/Cu2O particles including Cu/Cu2O interfaces, and an aqueous medium containing CO2 or CO3−2. The CO2 or CO3−2 is reduced by contacting the Cu/Cu2O particles with the aqueous medium while supplying electricity to the cell. The conversion of CO2 by the electrochemical reduction thereof has higher Faradaic Efficiency due to the Cu/Cu2O interfaces in the Cu/Cu2O particles.
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公开(公告)号：US11339487B2
公开(公告)日：2022-05-24
申请号：US16800966
申请日：2020-02-25
发明人： Gugang Chen , Yi Rao , Xia Li
IPC分类号： C25B3/25 , C25B11/077 , C25B9/17
摘要： A method of electrochemical reduction of carbon dioxide includes the use of multi-faceted Cu2O crystals as a catalyst to convert CO2 to value-added products. An electrochemical cell for the electrochemical reduction of carbon dioxide includes a cathode including the multi-faceted Cu2O crystals. The multi-faceted Cu2O crystals have at least two different types of facets with different Miller indices. The multi-faceted Cu2O crystals include steps and kinks present at the transitions between the different types of facets. These steps and kinks improve the Faradaic Efficiency of the conversion of carbon dioxide. The multi-faceted Cu2O crystals may be nanosized. The multi-faceted Cu2O crystals may include 18-facet, 20-facet, and/or 50-facet Cu2O crystals.
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公开(公告)号：US20210155496A1
公开(公告)日：2021-05-27
申请号：US17104358
申请日：2020-11-25
发明人： Gugang CHEN , Yi Rao , Xia Li
摘要： All inorganic perovskites for short-wave IR (SWIR) devices having improved chemical stability and long-term stability. Improved methods of making all inorganic perovskites for short-wave IR (SWIR) devices are also disclosed herein.
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5.发明申请公开(公告)号：US20200277703A1
公开(公告)日：2020-09-03
申请号：US16800966
申请日：2020-02-25
发明人： Gugang Chen , Yi Rao , Xia Li
摘要： A method of electrochemical reduction of carbon dioxide includes the use of multi-faceted Cu2O crystals as a catalyst to convert CO2 to value-added products. An electrochemical cell for the electrochemical reduction of carbon dioxide includes a cathode including the multi-faceted Cu2O crystals. The multi-faceted Cu2O crystals have at least two different types of facets with different Miller indices. The multi-faceted Cu2O crystals include steps and kinks present at the transitions between the different types of facets. These steps and kinks improve the Faradaic Efficiency of the conversion of carbon dioxide. The multi-faceted Cu2O crystals may be nanosized. The multi-faceted Cu2O crystals may include 18-facet, 20-facet, and/or 50-facet Cu2O crystals.
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公开(公告)号：US10913056B2
公开(公告)日：2021-02-09
申请号：US15664795
申请日：2017-07-31
发明人： Gugang Chen , Avetik Harutyunyan , Yi Rao , Xia Li
摘要： A simple approach to produce mixed Cu/Cu2O nanocrystals having a specific morphology by controlling the reaction temperature during Cu/Cu2O nanocrystals synthesis. Other variables are kept constant, such as the amount of reactants, while the reaction temperatures is maintained at a predetermined temperature of 70° C., 30° C. or 0° C., which are used to produce different and controlled morphologies for the Cu/Cu2O nanocrystals. The reaction mixture includes a copper ion contributor, a capping agent, a pH adjustor, and reducing agent. The reaction mixture is held at the predetermined temperature for three hours to produce the Cu/Cu2O nanocrystals. The synthesis method has advantages such as mass production, easy operation, and high reproducibility.
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公开(公告)号：US20190030523A1
公开(公告)日：2019-01-31
申请号：US15664795
申请日：2017-07-31
发明人： Gugang Chen , Avetik Harutyunyan , Yi Rao , Xia Li
摘要： A simple approach to produce mixed Cu/Cu2O nanocrystals having a specific morphology by controlling the reaction temperature during Cu/Cu2O nanocrystals synthesis. Other variables are kept constant, such as the amount of reactants, while the reaction temperatures is maintained at a predetermined temperature of 70° C., 30° C. or 0° C., which are used to produce different and controlled morphologies for the Cu/Cu2O nanocrystals. The reaction mixture includes a copper ion contributor, a capping agent, a pH adjustor, and reducing agent. The reaction mixture is held at the predetermined temperature for three hours to produce the Cu/Cu2O nanocrystals. The synthesis method has advantages such as mass production, easy operation, and high reproducibility.
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