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公开(公告)号：US11524280B2
公开(公告)日：2022-12-13
申请号：US16726836
申请日：2019-12-25
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Shijun Liao , Xinlong Tian , Junming Luo , Rong Chen
Abstract: The present invention discloses a low-platinum catalyst based on nitride nanoparticles and a preparation method thereof. A component of an active metal of the catalyst directly clades on a surface of nitride particles or a surface of nitride particles loaded on a carbon support in an ultrathin atomic layer form. Preparation steps including: preparing a transition-metal ammonia complex first, nitriding the obtained ammonia complex solid under an atmosphere of ammonia gas to obtain nitride nanoparticles; loading the nitride nanoparticles on a surface of a working electrode, depositing an active component on a surface of the nitride nanoparticles by pulsed deposition, to obtain the low platinum loading catalyst using a nitride as a substrate. The catalyst may be used as an anode or a cathode catalyst of a low temperature fuel cell, has very high catalytic activity and stability, can greatly reduce a usage amount of a precious metal in the fuel cell, and greatly reduces a cost of the fuel cell. The present invention has important characteristics of being controllable in deposition amount, simple and convenient to operate, free of protection of inert atmosphere, and etc., and is suitable for large-scale industrial production.
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公开(公告)号：US11512158B2
公开(公告)日：2022-11-29
申请号：US16605112
申请日：2018-03-29
Applicant: South China University of Technology
Inventor： Guangzhao Zhang , Chunfeng Ma , Qianni Xie
IPC: C08F220/36 , C08F212/08 , C08F220/38 , C08F220/14 , C08F220/28 , C08F226/06 , C08L53/00 , C08F220/18 , C08F130/04
Abstract: The present invention belongs to the technical field of marine anti-fouling materials, and discloses a self-polishing zwitterionic anti-fouling resin having a main chain degradability and the preparation therefor and the use thereof. The self-polishing zwitterionic anti-fouling resin is formed by copolymerizing the following three monomers (in the total mass of the monomers): 1% to 80% of an olefinic reactive monomer, 1% to 80% of a cycloketene acetal monomer, and 1% to 80% of a betaine type precursor. The anti-fouling resin has a main chain degradability and a side chain hydrolyzability, and the transition of a coating from being hydrophobic to being hydrophilic is achieved by the hydrolysis of a surface to produce a super-hydrophilic zwitterionic surface, in order to further enhance the anti-fouling ability of the system. The material not only overcomes the disadvantages of poor mechanical properties and poor solubility in an organic solvent of a zwitterionic material, but can also effectively control the long-term stable release of an anti-fouling agent, so as to achieve a synergistic anti-fouling effect of the anti-fouling agent and an anti-protein. The method of the present invention is simple, has a relatively low cost, and is suitable for industrial production. The material is used in the field of marine anti-fouling coatings.
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公开(公告)号：US11458449B2
公开(公告)日：2022-10-04
申请号：US16920759
申请日：2020-07-06
Inventor： Jing Xiao , Cuiting Yang , Lei Dong , Neng Liao , Guang Miao , Zhong Li
Abstract: This invention disclosure reported here a supported metal hydroxide adsorbent and a method for its preparation as well as a method for its oxidative regeneration. The supported metal hydroxide adsorbent comprises metal hydroxide and support with a mass ratio of 5-30:100. The adsorbent disclosed in present invention exhibited outstanding adsorption capacity and high selectivity to sulfur impurity in gasoline. The method of oxidative regeneration provides an efficient way for the recovery of the saturated adsorbent.
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64.发明申请公开(公告)号：US20220307773A1
公开(公告)日：2022-09-29
申请号：US17612573
申请日：2019-10-28
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Lizhi ZHANG , Hong YU , Chuanshuai DONG
Abstract: A controllable phase change material bag and a preparation method and an application thereof are provided. The preparation method comprises the following steps: 1, form a metal plate or a metal bar with a rough surface, embedding a powder seed crystal that induces a phase change material to nucleate on the surface, then placing the metal plate or the metal bar in a sodium acetate solution to obtain a controllable trigger metal electrode (1); and 2, mixing a sodium acetate trihydrate crystal, water and a thickener to obtain an oversaturated phase change heat storage solution, pouring the solution into a metal ball (2), carrying out encapsulation after inserting the controllable trigger metal electrode obtained in the step 1 and a conducting electrode (3), and finally placing in the water bath to preserve heat to obtain the controllable phase change material bag.
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公开(公告)号：US11450951B2
公开(公告)日：2022-09-20
申请号：US17262759
申请日：2020-03-11
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Xiuyin Zhang , Wanli Zhan , Jinxu Xu , Yunfei Cao
Abstract: The invention discloses a feed network for an antenna array with integrated filtering, power splitting and phase shifting, comprising upper and lower metal floors, metal connecting posts, coaxial feed terminals, a suspended dielectric substrate, suspended strip lines and two phase-adjusting dielectric substrates; the upper and lower metal floors share a common ground through the metal connecting posts, the suspended strip lines are provided on the suspended dielectric substrate, the suspended dielectric substrate is positioned horizontally between the two phase-adjusting dielectric substrates, the two phase-adjusting dielectric substrates are positioned horizontally between the upper and lower metal floors; the suspended strip lines comprise a one-to-three filtering power splitting unit, two one-to-two unequal filtering power splitting units, two first phase-shifting lines and two second phase-shifting lines, the two phase-adjusting dielectric substrates cover the one-to-three filtering power splitting unit, part of the two first phase-shifting lines and the two second phase-shifting lines. The invention provides integrated design of the three functional circuits with filtering, power splitting and phase shifting to avoid cascading mismatch between different functional circuits in conventional designs.
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Patent Agency Ranking
公开(公告)号：US20220276166A1
公开(公告)日：2022-09-01
申请号：US17749162
申请日：2022-05-20
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Xiangjun GONG , Wenzhang TIAN , Yongping ZENG , Lianjun BAO , Guangzhao ZHANG , Xiao LIANG , Xiawen QIU
Abstract: Provided are a synchronous fluorescence detector for observing the interface concentration of fluorescent pollutants and application method. The detector comprises a first electric displacement platform, a quartz cuvette, an excitation light path, a collection light path and a second electric displacement platform. The application method comprises the following steps: first exciting fluorescent pollutants by utilizing UV light with specific wavelengths to emit fluorescent light; then collecting fluorescence signals emitted by the excited fluorescent pollutants to the greatest extent by utilizing an UV anti-reflection convex lens combination; and finally, processing the fluorescent signals acquired by a photomultiplier by utilizing a difference method to determine a precise light intensity of a thin layer which is moved at a specific spacing by utilizing the electric displacement platforms so as to determine fugacity distribution of the fluorescent pollutants in the microlayer near an interface.
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公开(公告)号：US20220274096A1
公开(公告)日：2022-09-01
申请号：US17624577
申请日：2019-10-25
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Jinquan WAN , Su DING , Yongwen MA , Yan WANG , Zhicheng YAN
Abstract: An MOFs/MIPs catalyst, an in situ growth preparation method for same, and applications thereof are provided. The method comprises: uniformly mixing template molecules, a functional monomer, and a pore-foaming agent and performing a prepolymerization to produce a prepolymerization reaction product; uniformly mixing a cross-linking agent, an initiator, and the prepolymerization reaction product, heating, eluting the template molecules via a Soxhlet extraction, and drying to produce an imprinted polymer; uniformly mixing dimethylformamide, 2,5-dihydroxyterephthalic acid, ferrous chloride, water, methanol, and the imprinted polymer, heating, washing, using methanol for immersion and washing, and drying to produce the MOFs/MIPs catalyst.
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68.发明申请公开(公告)号：US20220271280A1
公开(公告)日：2022-08-25
申请号：US17438035
申请日：2020-10-30
Applicant: South China University of Technology
Inventor： Wei Yuan , Chun Wang , Qiqi Pan , Cheng Wang , Yuhang Yuan , Zhiqiang Qiu , Yong Tang
IPC: H01M4/38 , H01M4/04 , H01M10/052 , H01M4/62
Abstract: Disclosed are a lithium negative electrode with a protective layer (1), a preparation method and an application thereof. The protective layer (1) of the lithium negative electrode is located on a surface of the electrode, and the protective layer (1) is a lithiated perfluorosulfonic acid membrane doped with nano molybdenum disulfide (3). The preparation method for the lithium negative electrode with the protective layer (1) comprises the following steps of: I. lithiation of a perfluorosulfonic acid; II. loading of the molybdenum disulfide (3); and III. coating and curing of the protective layer (1). The protective layer (1) of the lithium metal negative electrode of a lithium battery is capable of effectively inhibiting lithium dendrites, and weakening a shuttle effect, thereby improving a charge and discharge capacity, a rate capability and a cycle life of a lithium-sulfur battery.
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公开(公告)号：US20220249677A1
公开(公告)日：2022-08-11
申请号：US17621728
申请日：2019-11-28
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Xiaoxi LI , Yiping ZHANG , Ling CHEN , Lin LI
Abstract: Disclosed are a M-cell targeting and pH-responsive starch-based carrier material, and a preparation method and application thereof. The starch-based carrier material has a molecular structure as follows, a molecular weight of 7.04×104 to 2.11×106 g/mol, a degree of substitution of carboxymethyl groups of 0.04 to 0.28, and a grafting amount of targeting peptide GRGDS of 0.01% to 1.12% (calculated based on the content of N). The material is not dissolved in water when protonated at pH (pH=1.2) of the stomach, and is slowly dissolved in water when deprotonated at pH (pH=6.8) of the small intestine, therefore it has good responsiveness to pH of the gastrointestinal tract. The material can efficiently encapsulate a positively charged active substance by means of electrostatic interaction, therefore it can protect the active substances from being destroyed and inactivated in the gastrointestinal tract. Meanwhile, the material can target M cells to improve the transport efficiency of the active substance by M cells, thereby improving the bioavailability of the active substance.
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70.发明申请公开(公告)号：US20220234198A1
公开(公告)日：2022-07-28
申请号：US17614075
申请日：2021-03-12
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY , GUANGZHOU INSTITUTE OF MODERN INDUSTRIAL TECHNOLOGY
Inventor： Yu LIU , He CAI , Huanli GAO
IPC: B25J9/16
Abstract: A method for controlling vibration of flexible mechanical arms based on cooperative tracking is disclosed, including: building a dynamic model of the flexible mechanical arm, according to a dynamic characteristic, constructing a flexible mechanical arm group made up of a plurality of flexible mechanical arms, assigning one of the plurality of flexible mechanical arms as a leader and the rest ones as followers which are required to track the leader's motion trajectory so as to realize cooperative work; designing cooperative control-based boundary controllers in combination with a Lyapunov method to realize cooperative work and suppress vibration of the flexible mechanical arms; and constructing a Lyapunov function using Lyapunov direct method to validate stability of the flexible mechanical arms under the control.
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