公开(公告)号：US20210238756A1

公开(公告)日：2021-08-05

申请号：US16972160

申请日：2019-06-27

申请人： MONASH UNIVERSITY

发明人： Douglas R. MACFARLANE ,  Bryan Harry Rahmat SURYANTO ,  Dabin WANG ,  Hoang-Long DU

IPC分类号： C25B11/054 ,  C25B1/27 ,  C25B11/057 ,  C25B11/081

摘要： The invention provides a cathode for the nitrogen reduction reaction, comprising an electrically conductive substrate and an electrocatalytic composition on the substrate, wherein the electrocatalytic composition comprises: a support material present in one or more crystalline phases; and metallic clusters dispersed on the support material, the metallic clusters comprising at least one metal selected from ruthenium, iron, rhodium, iridium and molybdenum, wherein at least 80 mass % of the support material is present in a semiconductive crystalline phase having a conduction band minimum energy below (more positive than) −0.3 V relative to the normal hydrogen electrode (NHE).

公开(公告)号：US10975482B1

公开(公告)日：2021-04-13

申请号：US16803934

申请日：2020-02-27

申请人： Haiming Li

发明人： Haiming Li

IPC分类号： C25B11/091 ,  C25B11/03 ,  C25B1/04 ,  C25B11/051 ,  C25B11/057 ,  C25D11/02 ,  C25D5/48 ,  C25D11/20

摘要： The invention discloses a self-derivative iron-containing nickel anode for alkaline water electrolysis and its preparation method. The anode comprises a nickel substrate and catalytic material layer. The catalytic layer is disposed on and integrated with the surface of the nickel substrate. The catalytic layer contains nickel oxide with iron components. The nickel oxide results from the reaction of the surface layer of the nickel substrate with an oxidant-rich alkaline solution and forms a nanosheet array layer. A nickel-oxidation state containing the iron component is formed by electrochemically induced iron-ion corrosion of the nickel-oxidation state. The invention can effectively reduce the potential difference between the anode and cathode of an electrolysis cell, thereby significantly reduces energy consumption and improves the efficiency of water electrolysis.

公开(公告)号：US10975481B2

公开(公告)日：2021-04-13

申请号：US16509620

申请日：2019-07-12

申请人： Tsinghua University ,  HON HAI PRECISION INDUSTRY CO., LTD.

发明人： Jian-Wei Guo ,  Chen-Chen Zhao ,  Xiang-Ming He ,  Li Wang ,  Jian-Jun Li ,  Jian Gao

IPC分类号： C25B9/23 ,  C25B11/031 ,  C25B3/26 ,  C25B3/25 ,  C25B11/057 ,  C25B11/081 ,  C25B11/075 ,  B32B15/01

摘要： A cathode catalyst used for conversion of a carbon dioxide gas by an electrochemical reduction includes at least one first catalyst layer and at least one second catalyst layer disposed on a surface of the at least one first catalyst layer. The at least one second catalyst layer is a porous structure. The at least one first catalyst layer and the at least one second catalyst layer are physically combined with each other, and materials of the at least one first catalyst layer and the at least one second catalyst layer are different. A cathode material and a reactor include the cathode catalyst are also provided.

公开(公告)号：US12129566B2

公开(公告)日：2024-10-29

申请号：US17707903

申请日：2022-03-29

申请人： CENTRAL SOUTH UNIVERSITY

发明人： Hui Liu ,  Kaisong Xiang ,  Liyuan Chai ,  Fenghua Shen ,  Xudong Liu ,  Fangfang Zhu ,  Lin Wu ,  Huimin Yi ,  Xiaobo Min ,  Zhang Lin ,  Qingzhu Li ,  Qingwei Wang ,  Haiying Wang ,  Weichun Yang

IPC分类号： C25B9/23 ,  B01D53/50 ,  B01D53/78 ,  C25B1/01 ,  C25B1/50 ,  C25B11/052 ,  C25B11/057 ,  C25B11/075 ,  C25B11/081 ,  C25B15/08

CPC分类号： C25B9/23 ,  B01D53/502 ,  B01D53/78 ,  C25B1/01 ,  C25B1/50 ,  C25B11/052 ,  C25B11/057 ,  C25B11/075 ,  C25B11/081 ,  C25B15/08 ,  B01D2251/306 ,  B01D2251/604

摘要： A method for preparing hydrogen sulfide from sulfur dioxide by electrochemical reduction includes electrochemically reducing sulfur dioxide absorbed in an aqueous solution into gaseous hydrogen sulfide with a membrane electrode, resulting in efficient and selective conversion of the sulfur dioxide absorbed in the aqueous solution into the hydrogen sulfide to avoid a deactivation of a cathode due to colloidal sulfur produced on the cathode and adhesion onto a surface of the cathode, wherein the method is carried out at ambient temperature and normal pressure without addition of a reducing agent, having no waste salts produced, and is simple in operation, and is convenient for large-scale application.

公开(公告)号：US12077873B2

公开(公告)日：2024-09-03

申请号：US17107034

申请日：2020-11-30

申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

发明人： Kuo-Hsin Lin ,  Li-Duan Tsai ,  Wen-Hsuan Chao ,  Chiu-Ping Huang ,  Pin-Hsin Yang ,  Hsiao-Chun Huang ,  Jiunn-Nan Lin ,  Yu-Ming Lin

IPC分类号： C25B11/075 ,  C01B21/06 ,  C25B1/04 ,  C25B9/73 ,  C25B11/051 ,  C25B11/057 ,  C30B25/06 ,  C30B29/38

CPC分类号： C25B11/075 ,  C01B21/0615 ,  C01B21/0622 ,  C25B1/04 ,  C25B9/73 ,  C25B11/051 ,  C25B11/057 ,  C30B25/06 ,  C30B29/38 ,  C01P2002/02 ,  C01P2002/76

摘要： A method for manufacturing nitride catalyst is provided, which includes putting a Ru target and an M target into a nitrogen-containing atmosphere, in which M is Ni, Co, Fe, Mn, Cr, V, Ti, Cu, or Zn. The method also includes providing powers to the Ru target and the M target, respectively. The method also includes providing ions to bombard the Ru target and the M target for depositing MxRuyN2 on a substrate by sputtering, wherein 0

公开(公告)号：US11993855B2

公开(公告)日：2024-05-28

申请号：US16886409

申请日：2020-05-28

申请人： C2CNT LLC

发明人： Stuart Licht

IPC分类号： C25B1/135 ,  C25B1/00 ,  C25B9/17 ,  C25B11/051 ,  C25B11/057 ,  C25B11/075

CPC分类号： C25B1/00 ,  C25B1/135 ,  C25B9/17 ,  C25B11/051 ,  C25B11/057 ,  C25B11/075

摘要： The present invention relates to the production of graphene from CO2 through electrolysis and exfoliation processes. One embodiment is a method for producing graphene comprising (i) performing electrolysis between an electrolysis anode and an electrolysis cathode in a molten carbonate electrolyte to generate carbon nanomaterial on the cathode, and (ii) electrochemically exfoliating the carbon nanomaterial from a second anode to produce graphene. The exfoliating step produces graphene in high yield than thicker, conventional graphite exfoliation reactions. CO2 can be the sole reactant used to produce the valuable product as graphene. This can incentivize utilization of CO2, and unlike alternative products made from CO2 such as carbon monoxide or other fuels such as methane, use of the graphene product does not release this greenhouse gas back into the atmosphere.

公开(公告)号：US20240018023A1

公开(公告)日：2024-01-18

申请号：US18099609

申请日：2023-01-20

申请人： King Fahd University of Petroleum and Minerals

发明人： Chanbasha BASHEER ,  Hakimu NSUBUGA

IPC分类号： C02F1/461 ,  C02F1/467 ,  C25B11/043 ,  C25B11/057 ,  C25B11/091 ,  C23C18/12

CPC分类号： C02F1/46109 ,  C02F1/4672 ,  C25B11/043 ,  C25B11/057 ,  C25B11/091 ,  C23C18/1254 ,  C02F2305/026 ,  C02F2101/308

摘要： Copper-boron-ferrite (Cu—B—Fe) composites may be prepared and immobilized on graphite electrodes in a silica-based sol-gel, e.g., from rice husks. Different bimetallic loading ratios can produce fast in-situ electrogeneration of reactive oxygen species, H2O2 and ·OH, e.g., via droplet flow-assisted heterogeneous electro-Fenton reactor system. Loading ratios of, e.g., 10 to 30 wt. % Fe3+ and 5 to 15% wt. Cu2+, can improve the catalytic activities towards pharmaceutical beta blockers (atenolol and propranolol) degradation in water. Degradation efficiencies of at least 99.9% for both propranolol and atenolol in hospital wastewater were demonstrated. Radicals of ·OH in degradation indicate a surface mechanism at inventive cathodes with correlated contributions of iron and copper. Copper and iron can be embedded in porous graphite electrode surface and catalyze the conversion of H2O2 to ·OH to enhance the degradation. Inventive cathodes can be stable catalytically after 20 or more cycles under neutral and acidic conditions.

公开(公告)号：US20230366104A1

公开(公告)日：2023-11-16

申请号：US18354435

申请日：2023-07-18

申请人： C2CNT LLC

发明人： Stuart Licht

IPC分类号： C25B1/00 ,  C25B9/17 ,  C25B11/051 ,  C25B11/057 ,  C25B11/075 ,  C25B1/135

CPC分类号： C25B1/00 ,  C25B9/17 ,  C25B11/051 ,  C25B11/057 ,  C25B11/075 ,  C25B1/135

摘要： The present invention relates to the production of graphene from CO2 through electrolysis and exfoliation processes. One embodiment is a method for producing graphene comprising (i) performing electrolysis between an electrolysis anode and an electrolysis cathode in a molten carbonate electrolyte to generate carbon nanomaterial on the cathode, and (ii) electrochemically exfoliating the carbon nanomaterial from a second anode to produce graphene. The exfoliating step produces graphene in high yield than thicker, conventional graphite exfoliation reactions. CO2 can be the sole reactant used to produce the valuable product as graphene. This can incentivize utilization of CO2, and unlike alternative products made from CO2 such as carbon monoxide or other fuels such as methane, use of the graphene product does not release this greenhouse gas back into the atmosphere.

公开(公告)号：US20230295817A1

公开(公告)日：2023-09-21

申请号：US18134325

申请日：2023-04-13

申请人： King Fahd University of Petroleum and Minerals

发明人： Muhammad Ali EHSAN ,  Md. Abdul AZIZ ,  Abbas Saeed HAKEEM

IPC分类号： C25B11/091 ,  C25B1/04 ,  B01J23/75 ,  B01J37/02 ,  B01J35/00 ,  C25B11/051 ,  C25B11/057

CPC分类号： C25B11/091 ,  B01J23/75 ,  B01J35/0033 ,  B01J37/0244 ,  C25B1/04 ,  C25B11/051 ,  C25B11/057 ,  C23C16/405

摘要： A synthetic methodology for robust, nanostructured films of cobalt oxide over metal evaporated gold or similar material layer of, e.g., 50 nm, directly onto glass or other substrates via aerosol assisted chemical vapor deposition (AACVD). This approach allows film growth rates in the range of, e.g., 0.8 nm/s, using a commercially available precursor, which is ~10-fold the rate of electrochemical synthetic routes. Thus, 250 nm thick cobalt oxide films may be generated in only 5 minutes of deposition time. The water oxidation reaction for such films may start at ~0.6 V vs Ag/AgCl with current density of 10 mA/cm2 and is achieved at ~0.75 V corresponding to an overpotential of 484 mV. This current density is further increased to 60 mA/cm2 at ~1.5 V (vs Ag/AgCl). Electrochemically active surface area (ECSA) calculations indicate that the synergy between a Au-film, acting as electron sink, and the cobalt oxide film(s), acting as catalytic layer(s), are more pronounced than the surface area effects.

公开(公告)号：US11713512B2

公开(公告)日：2023-08-01

申请号：US16932277

申请日：2020-07-17

申请人： S-Oil Corporation ,  UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

发明人： Ji-Hyun Jang ,  Ki-Yong Yoon ,  Sungwoo Kwon ,  Nam Hyun Hur ,  Sang Cheol Paik

IPC分类号： C25B11/051 ,  C25B11/057 ,  C25B11/075 ,  C25B1/04

CPC分类号： C25B11/051 ,  C25B1/04 ,  C25B11/057 ,  C25B11/075

摘要： The present disclosure relates to a bismuth vanadate electrode including vanadium-functionalized graphene quantum dots and a method for preparing the same. More particularly, it relates to a technology which is capable of, by adding graphene quantum dots (GQDs) in the process of immersing a bismuth vanadate (BiVO4) electrode in an alkaline solution to remove vanadium oxide (V2O5) excessively formed on the surface of the electrode during its preparation, protecting the electrode from the alkaline solution as the graphene quantum dots are adsorbed onto the surface of BiVO4 while V2O5 is removed, and improving the efficiency of oxygen evolution reaction (OER) when applied to a photoanode due to vanadium (V)-functionalized graphene quantum dots formed as the etched vanadium ions ((VO)43−) are adsorbed onto the graphene quantum dots.