公开(公告)号：US20220002151A1

公开(公告)日：2022-01-06

申请号：US17367905

申请日：2021-07-06

Applicant: Saudi Arabian Oil Company ,  Korea Advanced Institute of Science and Technology

Inventor： Sai P. Katikaneni ,  Kunho Lee ,  Joongmyeon Bae ,  WooChul Jung

IPC: C01B3/04 ,  C25B1/02 ,  C25B9/17 ,  C25B11/077 ,  C25B11/061

Abstract: According to embodiments of the present disclosure, a method of producing hydrogen in a fuel cell includes passing ammonia under pressure to an anode of the fuel cell, where the ammonia is decomposed into nitrogen gas and protons. The fuel cell comprises a cathode, the anode, and a proton-conducting electrolyte between the anode and the cathode. The anode includes an ammonia decomposition catalyst. The method further includes passing the purging the nitrogen from the anode, passing the protons through the proton-conducting electrolyte to the cathode, and passing the electrons from the anode to the cathode, wherein the protons and the electrons react to produce substantially pure hydrogen gas under pressure.

公开(公告)号：US11667539B2

公开(公告)日：2023-06-06

申请号：US17097084

申请日：2020-11-13

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： WooChul Jung ,  Jun Kyu Kim ,  Bonjae Koo

IPC: C01G23/00 ,  B82B3/00 ,  B82Y40/00

CPC classification number: C01G23/003 ,  B82B3/0038 ,  B82Y40/00 ,  C01P2002/34 ,  C01P2004/64 ,  C01P2006/10

Abstract: There is provided a method for preparation of oxide support-nanoparticle composites, in which metal nanoparticles decorate with uniform size and distribution on the surface of an oxide support, and thus, high performance oxide support-nanoparticle composites that can be applied in the fields of heterogeneous catalysis can be provided.

公开(公告)号：US20220006110A1

公开(公告)日：2022-01-06

申请号：US17367871

申请日：2021-07-06

Applicant: Saudi Arabian Oil Company ,  Korea Advanced Institute of Science and Technology

Inventor： Sai P. Katikaneni ,  Kunho Lee ,  Kangyong Lee ,  Joongmyeon Bae ,  WooChul Jung

IPC: H01M8/0656 ,  H01M8/0662 ,  C01B3/04 ,  H01M4/86 ,  H01M4/90

Abstract: According to embodiments of the present disclosure, a solid oxide fuel cell includes a cathode, an anode, and a solid oxide electrolyte between the anode and the cathode. The solid oxide electrolyte includes a solid oxide, and the anode includes a porous scaffold. The porous scaffold includes a solid oxide having metal-based catalysts disposed on one or more surfaces of the porous scaffold. In embodiments, at least one ammonia decomposition layer is disposed proximate the surface of the porous scaffold and is configured to convert ammonia into hydrogen and nitrogen for subsequent feed of hydrogen to the anode. The ammonia decomposition layer also includes a metal decomposition catalyst.

公开(公告)号：US20220002884A1

公开(公告)日：2022-01-06

申请号：US17367890

申请日：2021-07-06

Applicant: Saudi Arabian Oil Company ,  Korea Advanced Institute of Science and Technology

Inventor： Sai P. Katikaneni ,  Kunho Lee ,  Kangyong Lee ,  Joongmyeon Bae ,  WooChul Jung

IPC: C25B1/27 ,  H01M8/1246 ,  H01M8/1213 ,  H01M4/88 ,  H01M4/92 ,  C25B1/50 ,  C25B9/19 ,  C25B11/054 ,  C25B11/067 ,  C25B11/081 ,  C25B13/07

Abstract: According to embodiments of the present disclosure, a solid oxide fuel cell includes a cathode, an anode, and a solid oxide electrolyte disposed between the anode and the cathode. The anode includes a porous scaffold that includes a solid oxide having one or more metal nanoparticles disposed on one or more surfaces of the porous scaffold. The porous scaffold and the solid oxide electrolyte are formed from La0.8Sr0.2Ga0.83Mg0.17O2.815 (LSGM), and the metal nanoparticles are selected from the group consisting of platinum, nickel, gold, and combinations thereof. Methods of synthesizing ammonia using the fuel cell are also described.