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公开(公告)号:US12036531B2
公开(公告)日:2024-07-16
申请号:US17430377
申请日:2020-02-14
Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
Inventor: Weijiang Zhou , Siew Hwa Chan , Ovi Lian Ding , Jinli Yu
Abstract: A composite catalyst is provided. The composite catalyst includes a first catalytic material incorporated with a second catalytic material, wherein the first catalytic material comprises carbon doped with (i) nitrogen and (ii) at least one non-precious transition metal, and wherein the second catalytic material comprises a carbon-based supporting material incorporated with platinum nanoparticles. A method of producing the composite catalyst is also provided. The method includes providing a mixture comprising the first catalytic material and the second catalytic material, and subjecting the mixture to a size reduction step. The first catalytic material and a method of producing the first catalytic material are disclosed herein.
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公开(公告)号:US09370767B2
公开(公告)日:2016-06-21
申请号:US14361654
申请日:2013-02-18
Applicant: Nanyang Technological University
Inventor: Lan Zhang , Siew Hwa Chan , Hongquan He
IPC: C01B3/00 , C01B13/14 , C01G51/02 , C01G53/04 , C01F17/00 , B01J23/00 , B01J23/08 , B01J23/40 , B01J23/42 , C04B38/00 , C04B35/50 , C04B35/51 , B01J23/755 , C01G45/12 , H01M8/06 , C08F2/44 , B01J23/889 , B01J23/75 , B01J23/78 , B01J35/00 , B01J35/02 , B01J37/00 , C01B3/06 , C04B35/01 , C04B35/12 , C04B35/486 , C04B35/626 , C04B35/632 , B01J23/10 , B01J23/34 , C04B38/02 , C04B111/00
CPC classification number: B01J23/755 , B01J23/002 , B01J23/10 , B01J23/34 , B01J23/75 , B01J23/78 , B01J23/8892 , B01J35/002 , B01J35/023 , B01J37/0018 , B01J37/0036 , B01J37/0072 , B01J2523/00 , C01B3/065 , C01G45/1264 , C01P2002/72 , C04B35/01 , C04B35/016 , C04B35/12 , C04B35/486 , C04B35/62695 , C04B35/6325 , C04B38/02 , C04B2111/0081 , C04B2235/3213 , C04B2235/3225 , C04B2235/3227 , C04B2235/3241 , C04B2235/3246 , C04B2235/3262 , C04B2235/3275 , C04B2235/3277 , C04B2235/3279 , C04B2235/425 , C04B2235/528 , C04B2235/6023 , C08F2/44 , H01M8/0606 , H01M8/065 , Y02E60/324 , Y02E60/362 , Y02E60/50 , B01J2523/24 , B01J2523/3706 , B01J2523/67 , B01J2523/72
Abstract: A method of forming a metal oxide composite, the method comprising mixing a metal oxide, at least two monomers and a dispersant to produce a slurry; gel casting the slurry to produce a green metal oxide composite; and sintering the green metal oxide composite to produce the metal oxide composite. A metal oxide composite formed according to the method. Use of the metal oxide composite, for catalyzing hydrolysis of metal borohydride to produce hydrogen.
Abstract translation: 一种形成金属氧化物复合体的方法,所述方法包括将金属氧化物,至少两种单体和分散剂混合以产生浆料; 将浆料凝胶化以产生绿色金属氧化物复合材料; 并烧结生坯金属氧化物复合体以制备金属氧化物复合材料。 根据该方法形成的金属氧化物复合体。 使用金属氧化物复合物,用于催化水解金属硼氢化物以产生氢。
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公开(公告)号:US11633725B2
公开(公告)日:2023-04-25
申请号:US17246381
申请日:2021-04-30
Applicant: Nanyang Technological University
Inventor: Lan Zhang , Siew Hwa Chan , Bin Miao
Abstract: Here disclosed is a composite catalyst for methane cracking and a method of producing the composite catalyst. The composite catalyst includes a substrate formed of metal oxide, and one or more catalytic transition metals solubilized in the metal oxide, wherein the metal oxide includes a metal which differs from the one or more catalytic transition metals, wherein the metal oxide forms a matrix which the one or more catalytic transition metals are solubilized in to render transition metal ions from the one or more catalytic transition metals, wherein the transition metal ions under a reducing atmosphere diffuse to reside as transition metal nanoparticles at a surface of the substrate and the transition metal nanoparticles under an oxidizing atmosphere diffuse away from the surface to reside as transition metal ions in the metal oxide, and wherein the transition metal nanoparticles at the surface induce carbon from the methane cracking to deposit on the transition metal nanoparticles and have the carbon deposited grow away from the substrate.
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公开(公告)号:US11247190B2
公开(公告)日:2022-02-15
申请号:US16317415
申请日:2017-07-28
Applicant: Nanyang Technological University
Inventor: Lan Zhang , Siew Hwa Chan , Ovi Lian Ding , Hongquan He
IPC: B01J20/10 , B01J20/12 , B01D53/02 , B01D53/68 , B01D53/82 , B01J20/20 , B01J20/30 , B01J20/32 , B01J20/28 , B01J20/06 , C01B3/50 , B01J20/02 , B01D53/40 , B01D53/42
Abstract: The invention provides a composite material formed from an inorganic mesoporous, or mesoporous-like, material that is dispersed throughout a polymeric matrix formed by a crosslinked polymer that has acidic- or basic-residues and which may also optionally have further acidic- or basic-residues grafted onto the inorganic mesoporous material. The resulting composite material may be used to remove acidic or basic impurities from a gas in need thereof and can be easily regenerated.
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公开(公告)号:US20190151822A1
公开(公告)日:2019-05-23
申请号:US16317415
申请日:2017-07-28
Applicant: Nanyang Technological University
Inventor: Lan Zhang , Siew Hwa Chan , Ovi Lian Ding , Hongquan He
IPC: B01J20/10 , B01J20/12 , B01J20/20 , B01J20/02 , B01J20/28 , B01J20/30 , B01J20/32 , B01D53/68 , B01D53/82
Abstract: Disclosed herein is a composite material formed from an inorganic mesoporous, or mesoporous-like, material that is dispersed throughout a polymeric matrix formed by a crosslinked polymer that has acidic- or basic-residues and which may also optionally have further acidic- or basic-residues grafted onto the inorganic mesoporous material. The resulting composite material may be used to remove acidic or basic impurities from a gas in need thereof and can be easily regenerated.
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公开(公告)号:US11201335B2
公开(公告)日:2021-12-14
申请号:US16502847
申请日:2019-07-03
Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
Inventor: Weijiang Zhou , Miao Li , Siew Hwa Chan
Abstract: Provided is a method for forming noble metal nanoparticles on a support. In particular, the method includes heating precursors of the noble metal nanoparticles in a spiral glass tube reactor to reduce the precursors to form the noble metal nanoparticles on the support.
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公开(公告)号:US10439228B2
公开(公告)日:2019-10-08
申请号:US14899956
申请日:2014-07-18
Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
Inventor: Weijiang Zhou , Miao Li , Siew Hwa Chan
Abstract: Provided is a method for forming noble metal nanoparticles on a support. In particular, the method includes heating precursors of the noble metal nanoparticles in a spiral glass tube reactor to reduce the precursors to form the noble metal nanoparticles on the support.
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公开(公告)号:US10427123B2
公开(公告)日:2019-10-01
申请号:US16080305
申请日:2017-03-22
Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
Inventor: Hongquan He , Siew Hwa Chan , Ovi Lian Ding , Caizhi Zhang , Lan Zhang
Abstract: A hydrogen generator includes a container having a gas outlet that is configured to contain a soluble chemical fuel that reacts with a catalyst to generate hydrogen. A control cylinder is attached to the container and comprises a piston configured to travel axially within the control cylinder, a pole attached to the piston and extending into the container, a catalyst holder provided within the container and connected to the pole, resilient means biasing the catalyst holder towards a bottom of the container, and a gas inlet port. A gas flow line is in fluid communication with the gas outlet and has a first end in fluid communication with the gas inlet port, a second end configured to feed hydrogen to a hydrogen-consuming device, and a two-way valve provided to allow fluid communication between the first and second ends of the gas flow line to be selectably established or cut off.
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公开(公告)号:US20150017084A1
公开(公告)日:2015-01-15
申请号:US14361654
申请日:2013-02-18
Applicant: Nanyang Technological University
Inventor: Lan Zhang , Siew Hwa Chan , Hongquan He
CPC classification number: B01J23/755 , B01J23/002 , B01J23/10 , B01J23/34 , B01J23/75 , B01J23/78 , B01J23/8892 , B01J35/002 , B01J35/023 , B01J37/0018 , B01J37/0036 , B01J37/0072 , B01J2523/00 , C01B3/065 , C01G45/1264 , C01P2002/72 , C04B35/01 , C04B35/016 , C04B35/12 , C04B35/486 , C04B35/62695 , C04B35/6325 , C04B38/02 , C04B2111/0081 , C04B2235/3213 , C04B2235/3225 , C04B2235/3227 , C04B2235/3241 , C04B2235/3246 , C04B2235/3262 , C04B2235/3275 , C04B2235/3277 , C04B2235/3279 , C04B2235/425 , C04B2235/528 , C04B2235/6023 , C08F2/44 , H01M8/0606 , H01M8/065 , Y02E60/324 , Y02E60/362 , Y02E60/50 , B01J2523/24 , B01J2523/3706 , B01J2523/67 , B01J2523/72
Abstract: A method of forming a metal oxide composite, the method comprising mixing a metal oxide, at least two monomers and a dispersant to produce a slurry; gel casting the slurry to produce a green metal oxide composite; and sintering the green metal oxide composite to produce the metal oxide composite. A metal oxide composite formed according to the method. Use of the metal oxide composite, for catalysing hydrolysis of metal borohydride to produce hydrogen.
Abstract translation: 一种形成金属氧化物复合体的方法,所述方法包括将金属氧化物,至少两种单体和分散剂混合以产生浆料; 将浆料凝胶化以产生绿色金属氧化物复合材料; 并烧结生坯金属氧化物复合体以制备金属氧化物复合材料。 根据该方法形成的金属氧化物复合体。 使用金属氧化物复合物,用于催化金属硼氢化物的水解产生氢。
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