公开(公告)号：US11969716B2

公开(公告)日：2024-04-30

申请号：US18339190

申请日：2023-06-21

Applicant: Guangdong University of Technology

Inventor： Yun Chen ,  Shengbao Lai ,  Biao Li ,  Zuohui Liu ,  Guanhai Wen ,  Maoxiang Hou ,  Xin Chen

IPC: B01J27/224 ,  B01J6/00 ,  B01J21/18 ,  B01J35/00 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  C01B3/04

CPC classification number: B01J27/224 ,  B01J6/001 ,  B01J21/18 ,  B01J35/004 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  C01B3/045

Abstract: This application discloses a silicon carbide (SiC)-loaded graphene photocatalyst for hydrogen production under visible light irradiation and a preparation method thereof. Pure SiC and pure black carbon are respectively prepared and mixed to obtain a mixture with a resistance less than 100Ω. Then the mixture was vacuumized and processed with a current pulse with an increasing voltage until a breakdown occurs, and subjected to ultrasonic stirring, centrifugal washing and vacuum drying in turn to obtain the SiC-loaded graphene photocatalyst. By means of the current pulse, a heterojunction is formed between SiC and graphene to improve the catalytic activity of the photocatalyst; and the photocatalytic hydrogen production rate of SiC nanoparticles can be enhanced after loaded on the graphene.

公开(公告)号：US11969711B2

公开(公告)日：2024-04-30

申请号：US17417377

申请日：2019-12-10

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Jeong Kwon Kim ,  Sun Woo Yook ,  Bong Sik Jeon ,  Wan Jae Myeong

IPC: B01J23/62 ,  B01J27/20 ,  B01J35/02 ,  B01J35/10 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/18 ,  C07C29/149

CPC classification number: B01J23/626 ,  B01J27/20 ,  B01J35/023 ,  B01J35/1009 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1028 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1057 ,  B01J35/1061 ,  B01J37/035 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/18 ,  C07C29/149

Abstract: The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution. Provided is a method for preparing a carbon-based precious metal-transition metal composite catalyst, wherein, in the carbon-based precious metal-transition metal composite catalyst, the precious metal is included in an amount of 10-20 parts by weight, and the transition metal is included in an amount of 10-20 parts by weight based on 100 parts by weight of the composite catalyst, and thus a total amount of the precious metal-transition metal is 20-40 parts by weight based on 100 parts by weight of the composite catalyst.

公开(公告)号：US20240123428A1

公开(公告)日：2024-04-18

申请号：US18263966

申请日：2022-02-02

Applicant: Wisconsin Alumni Research Foundation

Inventor： Ive HERMANS ,  Lesli MARK ,  William MCDERMOTT ,  Theodore AGBI

IPC: B01J21/18 ,  B01J6/00 ,  B01J21/02 ,  B01J37/02 ,  B01J37/08 ,  B01J37/14 ,  C07C5/333

CPC classification number: B01J21/18 ,  B01J6/001 ,  B01J21/02 ,  B01J37/0201 ,  B01J37/08 ,  B01J37/14 ,  C07C5/333 ,  C07C2521/02 ,  C07C2521/18

Abstract: Improved catalytic materials for and methods of oxidative dehydrogenation (ODH) of short chain alkanes or ethylbenzene to the corresponding olefins are disclosed. The disclosed methods use catalysts made by impregnating boron onto the surface of oxidized amorphous carbon, and result in higher selectivity and a lower induction period than methods using conventional ODH catalysts.

公开(公告)号：US11958043B2

公开(公告)日：2024-04-16

申请号：US16612660

申请日：2018-05-11

Applicant: William Marsh Rice University

Inventor： Nancy Jean Halas ,  Peter Nordlander ,  Hossein Robatjazi ,  Dayne Francis Swearer ,  Chao Zhang ,  Hangqi Zhao ,  Linan Zhou

IPC: B01J35/00 ,  B01J19/12 ,  B01J21/02 ,  B01J21/04 ,  B01J21/10 ,  B01J23/00 ,  B01J23/38 ,  B01J23/44 ,  B01J23/50 ,  B01J23/52 ,  B01J23/58 ,  B01J23/72 ,  B01J23/78 ,  B01J23/89 ,  B01J27/04 ,  B01J27/14 ,  B01J27/20 ,  B01J27/22 ,  B01J27/24 ,  B01J31/06 ,  B01J35/02 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  B01J37/34 ,  C01B3/04 ,  C01B3/40 ,  C01B4/00 ,  C01B5/00 ,  C01B21/02 ,  C01B32/40 ,  B01J31/16

CPC classification number: B01J35/004 ,  B01J19/123 ,  B01J19/127 ,  B01J21/02 ,  B01J21/04 ,  B01J21/10 ,  B01J23/002 ,  B01J23/38 ,  B01J23/44 ,  B01J23/50 ,  B01J23/52 ,  B01J23/58 ,  B01J23/72 ,  B01J23/78 ,  B01J23/8926 ,  B01J23/8946 ,  B01J27/04 ,  B01J27/14 ,  B01J27/20 ,  B01J27/22 ,  B01J27/24 ,  B01J31/06 ,  B01J35/0006 ,  B01J35/0013 ,  B01J35/002 ,  B01J35/0033 ,  B01J35/006 ,  B01J35/008 ,  B01J35/026 ,  B01J35/1066 ,  B01J37/0203 ,  B01J37/0225 ,  B01J37/03 ,  B01J37/031 ,  B01J37/035 ,  B01J37/08 ,  B01J37/344 ,  C01B3/047 ,  C01B3/40 ,  C01B4/00 ,  C01B5/00 ,  C01B21/02 ,  C01B32/40 ,  B01J31/1691 ,  B01J2219/00635 ,  B01J2523/00 ,  B01J2540/66 ,  C01B2203/0238 ,  C01B2203/1076 ,  C01B2203/1082 ,  C01B2203/1241 ,  B01J2523/00 ,  B01J2523/17 ,  B01J2523/22 ,  B01J2523/31 ,  B01J2523/821

Abstract: A method of making a multicomponent photocatalyst, includes inducing precipitation from a pre-cursor solution comprising a pre-cursor of a plasmonic material and a pre-cursor of a reactive component to form co-precipitated particles; collecting the co-precipitated particles; and annealing the co-precipitated particles to form the multicomponent photocatalyst comprising a reactive component optically, thermally, or electronically coupled to a plasmonic material.

公开(公告)号：US20240116045A1

公开(公告)日：2024-04-11

申请号：US18263724

申请日：2022-01-19

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Jeong Kwon KIM ,  Bong Sik JEON

IPC: B01J37/16 ,  B01J21/18 ,  B01J35/30 ,  B01J37/08 ,  C07C29/149

CPC classification number: B01J37/16 ,  B01J21/18 ,  B01J35/394 ,  B01J37/08 ,  C07C29/149 ,  C07C2523/40 ,  C07C2601/14

Abstract: The present invention relates to a method for manufacturing a heterogeneous metal hydrogenation catalyst. More specifically, the present invention is characterized in that when the hydrogenation catalyst is reduced using a specific reducing gas in a proper reducing condition, the hydrogenation reaction of the catalyst is improved.

公开(公告)号：US11939528B2

公开(公告)日：2024-03-26

申请号：US17298137

申请日：2019-10-16

Applicant: TIANJIN UNIVERSITY

Inventor： Guanyi Chen ,  Xiang Guo ,  Yurou Mao ,  Beibei Yan ,  Yanbin Zhang ,  Junyu Tao ,  Wanqing Li ,  Zhanjun Cheng ,  Wenchao Ma

IPC: C10B57/10 ,  B01J23/10 ,  B01J23/755 ,  B01J37/08 ,  C01B3/40 ,  C10B47/02 ,  C10B57/16 ,  C12P3/00

CPC classification number: C10B57/10 ,  B01J23/10 ,  B01J23/755 ,  B01J37/08 ,  C01B3/40 ,  C10B47/02 ,  C10B57/16 ,  C12P3/00 ,  C01B2203/1628 ,  C12P2203/00

Abstract: A method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts, the method including: (1) mixing a first straw, seeding sludge and distilled water, and then carrying out anaerobic fermentation to obtain a mixed product after fermentation; (2) performing separation on the mixed product to obtain a second straw and biogas slurry; and (3) carbonizing the second straw to obtain biochar, and collecting gas after a pressurized catalytic reaction on the biogas slurry to obtain hydrogen.

公开(公告)号：US20240091747A1

公开(公告)日：2024-03-21

申请号：US17933523

申请日：2022-09-20

Applicant: Tsinghua University

Inventor： Binhang YAN ,  Zhihe ZHANG

IPC: B01J23/755 ,  B01J23/10 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  C07C1/12 ,  G01N30/68

CPC classification number: B01J23/755 ,  B01J23/10 ,  B01J37/009 ,  B01J37/0236 ,  B01J37/035 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  C07C1/12 ,  G01N30/68 ,  C07C2523/10 ,  C07C2523/755 ,  G01N2030/025

Abstract: Disclosed are a Ni-based catalyst for an unsteady-state trace CO, methanation reaction, and a preparation method thereof. The Ni-based catalyst according to the disclosure is composed of an active metal Ni and an oxide support, wherein the oxide support is composed of a rare earth oxide (REO) and an inert oxide; and the rare earth oxide and the inert oxide exhibit an excellent synergistic effect to ensure both high reactivity and weak adsorption and desorption interference. The Ni-based catalyst has a mass percentage of the active metal Ni of 40 wt. % to 90 wt. %, and a mass percentage of the REO of 0.5 wt. % to 20 wt. %, a balance being the inert oxide. The preparation method of the disclosure is a co-precipitation method, including a direct mixing for co-precipitation, a constant-speed dropwise addition for co-precipitation, and a microchannel mixing for co-precipitation.

公开(公告)号：US20240076184A1

公开(公告)日：2024-03-07

申请号：US18505248

申请日：2023-11-09

Applicant: The Board of Trustees of The University of Alabama

Inventor： Mruthunjaya Uddi ,  Rajagopalan Varadarajan Ranganathan ,  Steven M. Fondriest

IPC: C01B3/40 ,  B01J23/00 ,  B01J23/10 ,  B01J35/10 ,  B01J37/04 ,  B01J37/08 ,  C01B3/06

CPC classification number: C01B3/40 ,  B01J23/002 ,  B01J23/10 ,  B01J35/1014 ,  B01J35/1066 ,  B01J37/04 ,  B01J37/08 ,  C01B3/061 ,  C01B2203/0244 ,  C01B2203/0861 ,  C01B2203/1058 ,  C01B2203/1252 ,  C01B2203/1264 ,  C01B2203/148 ,  C01B2203/1614

Abstract: Chemical looping reform methods comprising heating an oxygen carrier in the presence of a catalyst and plasma radicals to react the oxygen carrier with a fuel to provide a reduced oxygen carrier; and contacting the reduced oxygen carrier with water or carbon dioxide to produce hydrogen or carbon monoxide, respectively, and regenerate the oxygen carrier. The chemical looping reform methods are carried out at low temperatures such as from 150° C. to 1000° C., preferably from 150° C. to 500° C. Catalyst used in the chemical looping reform methods include a sintered rare earth metal oxide oxygen carrier and perovskite. Methods of preparing the catalyst are also provided.

公开(公告)号：US20240075462A1

公开(公告)日：2024-03-07

申请号：US18268992

申请日：2021-11-17

Applicant: MITSUI MINING & SMELTING CO., LTD.

Inventor： Satoshi WATANABE ,  Yuki NAGAO ,  Michitaka YAMAGUCHI

IPC: B01J23/00 ,  B01D53/94 ,  B01J23/63 ,  B01J35/10 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08

CPC classification number: B01J23/002 ,  B01D53/94 ,  B01J23/63 ,  B01J35/1014 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  B01D2255/102 ,  B01D2255/908 ,  B01D2258/01 ,  B01J2523/31 ,  B01J2523/36 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/3725 ,  B01J2523/48

Abstract: An object of the present invention is to provide a cerium oxide (CeO2)-zirconium oxide (ZrO2)-aluminum oxide (Al2O3)-based complex oxide having an improved heat resistance and a method of producing the complex oxide, and the present invention provides a complex oxide containing a cerium element, a zirconium element, an aluminum element, and optionally a rare earth metal element other than a cerium element, wherein a specific surface area measured by a BET method after heat treatment in an air atmosphere at 1000° C. for 25 hours is 60 m2/g or more, and a method of producing the complex oxide.

公开(公告)号：US11918987B2

公开(公告)日：2024-03-05

申请号：US17291250

申请日：2020-01-14

Applicant: Wanhua Chemical Group Co., Ltd.

Inventor： Lei Wang ,  Tongji Wang ,  Fei Ye ,  Kang Sun ,  Naibo Chu ,  Qiankun Jiao ,  Yuan Li

IPC: B01J37/00 ,  B01J21/06 ,  B01J21/08 ,  B01J23/28 ,  B01J35/10 ,  B01J37/08 ,  C07D301/14

CPC classification number: B01J37/0018 ,  B01J21/063 ,  B01J21/08 ,  B01J23/28 ,  B01J35/1023 ,  B01J35/1061 ,  B01J37/08 ,  C07D301/14 ,  B01J2523/31 ,  B01J2523/41 ,  B01J2523/47 ,  B01J2523/68

Abstract: Provided are a preparation method for a propylene epoxidation catalyst, and a use thereof. During the preparation, an alkoxide solution of a prepared active component and a silica gel support are mixed, then a rotary evaporation treatment is performed on the mixture to remove a low-carbon alcohol to obtain a catalyst precursor, and then the obtained catalyst precursor is subjected to calcination and silylation treatments to obtain the propylene epoxidation catalyst. The catalyst is prepared in a simple process, can be applied to the chemical process of preparing propylene oxide by propylene epoxidation, has high average selectivity to propylene oxide, and has industrial application prospect.