公开(公告)号：US20210301412A1

公开(公告)日：2021-09-30

申请号：US17104427

申请日：2020-11-25

Applicant: Korea Institute of Science and Technology

Inventor： Sang Soo Han ,  Seung Yong Lee ,  Hyun S. Park ,  Min Cheol Kim ,  Hyun Ji Nam ,  Ji Hyun Choi

IPC: C25B11/075 ,  C01G3/12 ,  C01C1/04 ,  C25B1/50 ,  C25B1/27

Abstract: The present disclosure provides a Cu1.81S catalyst for synthesizing NH3 and a method for synthesizing NH3 using the same. According to the present disclosure, the Cu1.81S catalyst is provided in order to increase an efficiency of NH3 synthesis. A copper sulfide catalyst and the method for synthesizing NH3 via an electrochemical nitrogen reduction reaction (NRR) using the Cu1.81S catalyst are provided in order to reduce a limiting potential (UL) required for the NRR. In the NRR for the NH3 synthesis, it is provided the copper sulfide catalyst that can be used in any one of two different pathways for the NRR, and the method for synthesizing NH3 with higher activity of the NRR based thereon.

公开(公告)号：US11649551B2

公开(公告)日：2023-05-16

申请号：US17038331

申请日：2020-09-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young Lee ,  Hyoung-Juhn Kim ,  Sae Yane Baek ,  Taekyung Lee ,  Sung Jong Yoo ,  Jong Hyun Jang ,  Hee-Young Park ,  Jin Young Kim ,  Hyun S. Park

IPC: C25B9/23 ,  C25B13/02 ,  C25B13/08 ,  B01D67/00 ,  B01D71/06 ,  C25B11/04 ,  C25B1/04 ,  C25B9/73

CPC classification number: C25B9/23 ,  B01D67/0011 ,  B01D67/0013 ,  B01D71/06 ,  C25B1/04 ,  C25B9/73 ,  C25B11/04 ,  C25B13/02 ,  C25B13/08 ,  B01D2325/023 ,  B01D2325/42

Abstract: The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.