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公开(公告)号：US11230775B2
公开(公告)日：2022-01-25
申请号：US16559767
申请日：2019-09-04
发明人： Prashant N. Kumta , Karan Sandeep Kadakia , Moni Kanchan Datta , Oleg Velikokhatnyi , Prashanth Jampani Hanumantha
IPC分类号： B01J27/138 , C25B11/093 , H01M4/88 , H01M4/90 , C25B1/04 , C25B9/73 , C25B11/051 , B82Y30/00
摘要： The invention provides electro-catalyst compositions for an anode electrode of an acid mediated proton exchange membrane-based water electrolysis system. The compositions include a noble metal component selected from the group consisting of iridium oxide, ruthenium oxide, rhenium oxide and mixtures thereof, and a non-noble metal component selected from the group consisting of tantalum oxide, tin oxide, niobium oxide, titanium oxide, tungsten oxide, molybdenum oxide, yttrium oxide, scandium oxide, cooper oxide, zirconium oxide, nickel oxide and mixtures thereof. Further, the non-noble metal component can include a dopant. The dopant can be at least one element selected from Groups III, V, VI and VII of the Periodic Table. The compositions can be prepared using any solution based methods involving a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors. Furthermore, a thin film containing the compositions can be deposited onto a substrate to form the anode electrode.
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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：US10435803B2
公开(公告)日：2019-10-08
申请号：US16032139
申请日：2018-07-11
发明人： Prashant N. Kumta , Karan Sandeep Kadakia , Moni Kanchan Datta , Oleg Velikokhatnyi , Prashanth Jampani Hanumantha
摘要： The invention provides electro-catalyst compositions for an anode electrode of an acid mediated proton exchange membrane-based water electrolysis system. The compositions include a noble metal component selected from the group consisting of iridium oxide, ruthenium oxide, rhenium oxide and mixtures thereof, and a non-noble metal component selected from the group consisting of tantalum oxide, tin oxide, niobium oxide, titanium oxide, tungsten oxide, molybdenum oxide, yttrium oxide, scandium oxide, cooper oxide, zirconium oxide, nickel oxide and mixtures thereof. Further, the non-noble metal component can include a dopant. The dopant can be at least one element selected from Groups III, V, VI and VII of the Periodic Table. The compositions can be prepared using any solution based methods involving a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors. Furthermore, a thin film containing the compositions can be deposited onto a substrate to form the anode electrode.
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4.发明授权Non-noble metal based electro-catalyst compositions for proton exchange membrane based water electrolysis and methods of making 有权用于基于质子交换膜的水电解的非贵金属基电催化剂组合物及其制备方法公开(公告)号：US09561497B2
公开(公告)日：2017-02-07
申请号：US13961327
申请日：2013-08-07
IPC分类号： B01J23/00 , B01J27/135 , B01J23/46 , B01J23/648 , H01M4/88 , H01M4/90 , B82Y30/00
CPC分类号： B01J27/135 , B01J23/468 , B01J23/6484 , B82Y30/00 , H01M4/881 , H01M4/8828 , H01M4/9016 , H01M4/9075 , Y02E60/50
摘要： The invention provides electro-catalyst compositions for an anode electrode of a proton exchange membrane-based water electrolysis system. The compositions include a noble metal component selected from the group consisting of iridium oxide, ruthenium oxide, rhenium oxide and mixtures thereof, and a non-noble metal component selected from the group consisting of tantalum oxide, tin oxide, niobium oxide, titanium oxide, tungsten oxide, molybdenum oxide, yttrium oxide, scandium oxide, cooper oxide, zirconium oxide, nickel oxide and mixtures thereof. Further, the non-noble metal component can include a dopant. The dopant can be at least one element selected from Groups III, V, VI and VII of the Periodic Table. The compositions can be prepared using a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors. Furthermore, a thin film containing the compositions can be deposited onto a substrate to form the anode electrode.
摘要翻译： 本发明提供用于质子交换膜基水电解系统的阳极电极的电催化剂组合物。 组合物包括选自氧化铱，氧化钌，氧化铼及其混合物的贵金属组分和选自氧化钽，氧化锡，氧化铌，氧化钛， 氧化钨，氧化钼，氧化钇，氧化钪，氧化钴，氧化锆，氧化镍及其混合物。 此外，非贵金属组分可以包括掺杂剂。 掺杂剂可以是选自元素周期表的III，V，VI和VII族中的至少一种元素。 组合物可以使用表面活性剂方法或溶胶凝胶法制备。 此外，使用贵金属和非贵金属前体制备组合物。 此外，可以将含有组合物的薄膜沉积在基板上以形成阳极电极。
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5.发明公开公开(公告)号：US20240222652A1
公开(公告)日：2024-07-04
申请号：US18550084
申请日：2022-03-04
CPC分类号： H01M4/921 , C01B33/06 , H01M4/923 , C01P2002/50 , C01P2002/72 , C01P2002/85 , C01P2004/03 , C01P2006/40
摘要： The invention relates to systems and methods for successful operation of acid mediated proton exchange membrane fuel cell (PEMFC), and highly efficient, earth-abundant, and ultra-low noble metal-containing, e.g., platinum group metal (PGM)-containing, electrocatalyst materials for anodic hydrogen oxidation reaction (HOR). The electrocatalyst materials include metal silicide alloy-based solid solutions of the general formula: (A(n-x)Bx)Siy, wherein A is a transition metal element or mixture or alloy thereof, B is a noble metal element or mixture or alloy thereof, and each of n and x, is a positive integer or a positive fractional number, and y is a positive integer.
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公开(公告)号：US11896735B2
公开(公告)日：2024-02-13
申请号：US17381445
申请日：2021-07-21
CPC分类号： A61L27/30 , A61L27/047 , A61L27/306 , A61L27/54 , A61L31/022 , A61L31/082 , A61L31/088 , A61L31/16 , C22C23/00 , A61L2300/102
摘要： The invention includes compositions including magnesium-lithium alloys containing various alloying elements for medical implant devices. The devices are constructed of the compositions or have applied thereto a coating formed therefrom. Within the structure of the magnesium-lithium alloy, there is a co-existence of alpha and beta phases. The invention also includes methods of preparing the magnesium-lithium alloys and articles, such as medical implant devices, for use in medical applications, including orthopedic, dental, craniofacial and cardiovascular surgery.
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公开(公告)号：US10041179B2
公开(公告)日：2018-08-07
申请号：US15387100
申请日：2016-12-21
发明人： Prashant N. Kumta , Karan Sandeep Kadakia , Moni Kanchan Datta , Oleg Velikokhatnyi , Prashanth Jampani Hanumantha
摘要： The invention provides electro-catalyst compositions for an anode electrode of an acid mediated proton exchange membrane-based water electrolysis system. The compositions include a noble metal component selected from the group consisting of iridium oxide, ruthenium oxide, rhenium oxide and mixtures thereof, and a non-noble metal component selected from the group consisting of tantalum oxide, tin oxide, niobium oxide, titanium oxide, tungsten oxide, molybdenum oxide, yttrium oxide, scandium oxide, cooper oxide, zirconium oxide, nickel oxide and mixtures thereof. Further, the non-noble metal component can include a dopant. The dopant can be at least one element selected from Groups III, V, VI and VII of the Periodic Table. The compositions can be prepared using any solution based methods involving a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors. Furthermore, a thin film containing the compositions can be deposited onto a substrate to form the anode electrode.
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公开(公告)号：US20240304828A1
公开(公告)日：2024-09-12
申请号：US18654149
申请日：2024-05-03
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 , B01J27/135 , B82Y30/00 , H01M4/88 , H01M8/08 , H01M8/1018 , H01M8/1233
CPC分类号： H01M4/9016 , H01M4/881 , H01M4/8825 , H01M8/08 , H01M8/1018 , H01M8/1233 , B01J27/135 , B82Y30/00 , Y02E60/50
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：US11728543B2
公开(公告)日：2023-08-15
申请号：US16628837
申请日：2018-07-09
发明人： Prashant N. Kumta , Bharat Gattu , Moni Kanchan Datta , Oleg Velikokhatnyi , Pavithra Murugavel Shanthi , Prashanth Jampani Hanumantha
IPC分类号： H01M50/44 , D01D5/00 , D01F1/10 , H01M10/052 , H01M10/0565 , H01M50/403 , H01M50/431 , H01M50/489 , H01M50/426 , H01M50/434 , H01M50/497 , H01M50/40 , H01M10/0525
CPC分类号： H01M50/44 , D01D5/003 , D01F1/10 , H01M10/052 , H01M10/0565 , H01M50/40 , H01M50/403 , H01M50/426 , H01M50/431 , H01M50/434 , H01M50/489 , H01M50/497 , H01M10/0525 , H01M2300/0082 , H01M2300/0094
摘要： The invention relates to lithium ion batteries and, more particularly, to lithium ion conducting composite polymer electrolyte separators. The separators include a nanofiber mat composed of electrospun nanofibers. The nanofibers include a polymer having one or more polar halogen groups, a lithium-containing solid or liquid electrolyte and nanoparticle filler. The polymer, electrolyte and filler are combined to form a solution that is subjected to the electro-spinning process to produce electrospun nanofibers in the form of the mat.
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10.发明授权公开(公告)号：US11376349B2
公开(公告)日：2022-07-05
申请号：US14045011
申请日：2013-10-03
发明人： Prashant N. Kumta , Sung Jae Chung , Partha Saha , Oleg Velikokhatnyi , Moni Kanchan Datta , Dae Ho Hong , Da-Tren Chou
摘要： Biodegradable compositions containing from 10.0 to 95.0 weight percent iron for use in preparing medical devices. These biodegradable compositions exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions also include one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique and high energy mechanical alloying followed by compaction and sintering, film deposition techniques, such as, pulsed laser deposition (PLD), as well as melting, casting, homogenization and extrusion methods. The resulting compositions and the medical devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
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