公开(公告)号：US12297108B2

公开(公告)日：2025-05-13

申请号：US18538049

申请日：2023-12-13

Applicant: UNIVERSITY OF SOUTH CAROLINA

Inventor： Katherine McCullough ,  Jochen Lauterbach

IPC: C01B3/04 ,  B01J8/00 ,  B01J23/46 ,  B01J23/58

Abstract: In general, disclosed herein are methods for forming hydrogen by use of an ammonia decomposition catalyst system. For instance, a method can include contacting a catalyst system with an ammonia source at a temperature of about 450° C. or lower. The catalyst systems can include a support material and a trimetallic catalyst component carried on the support material and within a reactor. Disclosed catalyst systems can decompose ammonia at relatively low temperatures and can provide an efficient and cost-effective route to utilization of ammonia as a carbon-free hydrogen storage and generation material.

公开(公告)号：US11712689B2

公开(公告)日：2023-08-01

申请号：US17341495

申请日：2021-06-08

Applicant: UNIVERSITY OF SOUTH CAROLINA

Inventor： Erdem Sasmaz ,  Jochen Lauterbach ,  Sunkyu Kim

IPC: B01J35/00 ,  B01J23/89 ,  B01J21/08 ,  B01J35/02 ,  B01J35/10 ,  C01B3/40 ,  B01J35/08

CPC classification number: B01J35/0086 ,  B01J21/08 ,  B01J23/894 ,  B01J35/023 ,  B01J35/08 ,  B01J35/1019 ,  C01B3/40 ,  C01B2203/1241

Abstract: The present disclosure relates to yolk-shell structured catalysts having compositions that can be particularly useful in the dry reforming of methane. These catalysts can demonstrate long-term stability that would be an advantage in industrial applications such as mitigating fossil fuel plant emissions. Example catalysts can include a yolk containing nickel (Ni) or nickel oxide (NiO), platinum (Pt) or platinum oxide (PtO2), and a third material (M3) such as a cerium oxide (CeOx). The shell can be formed of a ceramic such as silica and is generally a porous material that can support the yolk.

公开(公告)号：US11891301B2

公开(公告)日：2024-02-06

申请号：US16376158

申请日：2019-04-05

Applicant: UNIVERSITY OF SOUTH CAROLINA

Inventor： Katherine McCullough ,  Jochen Lauterbach

IPC: C01B3/04 ,  B01J23/46 ,  B01J23/58 ,  C01B3/50 ,  B01J19/24 ,  B01J8/00 ,  B01J8/02

CPC classification number: C01B3/047 ,  B01J8/009 ,  B01J19/2475 ,  B01J23/58 ,  C01B3/503 ,  B01J8/02 ,  B01J2208/00805 ,  B01J2208/024 ,  B01J2523/12 ,  B01J2523/13 ,  B01J2523/14 ,  B01J2523/15 ,  B01J2523/25 ,  B01J2523/36 ,  B01J2523/49 ,  B01J2523/821 ,  C01B2203/041 ,  C01B2203/1041 ,  C01B2203/1064 ,  C01B2203/1094

Abstract: Disclosed are ruthenium-based catalyst systems, hafnium-based catalyst systems, and yttrium-based catalyst systems for use in ammonia decomposition. Catalyst systems include ruthenium, hafnium, and/or yttrium optionally in combination with one or more additional metals that can be catalytic or catalyst promoters. Hafnium-based and yttrium-based catalyst systems can be free of ruthenium. The catalyst systems also include a support material. Disclosed catalyst systems can decompose ammonia at relatively low temperatures and can provide an efficient and cost-effective route to utilization of ammonia as a carbon-free hydrogen storage and generation material.

公开(公告)号：US20240424483A1

公开(公告)日：2024-12-26

申请号：US18733255

申请日：2024-06-04

Applicant: University of South Carolina

Inventor： Samuel Drummond ,  Jochen Lauterbach ,  Jennifer Naglic

IPC: B01J23/10 ,  C01B3/04

Abstract: A catalyst support containing praseodymium oxide and dysprosium oxide, supported catalysts using the support, and methods of using the supported catalysts to catalyze the formation and degradation of ammonia.

公开(公告)号：US20190168205A1

公开(公告)日：2019-06-06

申请号：US16136309

申请日：2018-09-20

Applicant: UNIVERSITY OF SOUTH CAROLINA

Inventor： Erdem Sasmaz ,  Jochen Lauterbach ,  Sunkyu Kim

IPC: B01J35/00 ,  B01J21/08 ,  B01J23/83 ,  B01J35/10 ,  B01J35/02 ,  C01B3/40

Abstract: The present disclosure relates to yolk-shell structured catalysts. The yolk-shell catalysts can be particularly useful in the tri-reforming of methane. The yolks can include a primary material (M1), such as nickel (Ni) or nickel oxide (NiO), and a secondary material (M2). The shell is generally a porous material that can support the yolk. The shell can include silica (SiO2) and the secondary material can include ceria (CeO2). The yolk-shell catalyst can take the form of tube-like structures in which the yolk is dispersed within the shell support in a substantially homogeneous fashion.

公开(公告)号：US20240416323A1

公开(公告)日：2024-12-19

申请号：US18733335

申请日：2024-06-04

Applicant: University of South Carolina

Inventor： Samuel Drummond ,  Jochen Lauterbach ,  Jennifer Naglic

IPC: B01J23/58 ,  B01J23/46 ,  B01J35/30 ,  C01C1/04

Abstract: A catalyst including ruthenium, a promoter metal, and a second metal, optionally disposed on a support, and methods of using the catalyst to catalyze the formation of ammonia.

公开(公告)号：US20230001392A1

公开(公告)日：2023-01-05

申请号：US17781780

申请日：2020-12-04

Applicant: University of South Carolina

Inventor： Jochen Lauterbach ,  Michael Royko

IPC: B01J27/25 ,  B01J21/04 ,  B01J35/00 ,  B01J35/06 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  C01B3/16

Abstract: Described herein are reusable, mesh-based catalysts with superior mechanical stability and magnetic separability wherein the mesh may be formed in a variety of shapes and can be easily separated from a process stream and in combination with biomass torrefaction, reduces toxic emissions and produce hydrogen gas, which can be burned at the facility to generate heat or electricity.

公开(公告)号：US10882804B2

公开(公告)日：2021-01-05

申请号：US16547974

申请日：2019-08-22

Applicant: UNIVERSITY OF SOUTH CAROLINA

Inventor： Blake H. MacQueen ,  Elizabeth Barrow ,  Jochen Lauterbach

IPC: C07C29/141 ,  C07C31/22 ,  B01J23/656 ,  C08L97/02 ,  C07C29/145 ,  C07C29/132

Abstract: This disclosure provides embodiments directed to compositions, methods, and processes to produce compounds having the structure: each of R1-R5 is selected from a hydroxyl group and hydrogen; and R1-R5 include at least one hydroxyl group and at least one hydrogen; and n=0-2. In particular, methods of the disclosure can include reacting a precursor, the precursor containing more oxygen (O) atoms than the compound, with a gas containing hydrogen (H2) in the presence of a catalyst.