公开(公告)号：US11588157B2

公开(公告)日：2023-02-21

申请号：US17197893

申请日：2021-03-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Suk Oh ,  Woong Hee Lee ,  Byoung Koun Min ,  Yun Jeong Hwang ,  Ung Lee ,  Dong Ki Lee ,  Da Hye Won ,  Jai Hyun Koh

IPC: H01M8/04 ,  H01M4/90 ,  C25B11/089 ,  B22F1/142 ,  H01M4/86

Abstract: Proposed is an iridium alloy catalyst having reversible catalytic activity for an oxygen evolution reaction (OER), a hydrogen evolution reaction (HER), and a hydrogen oxidation reaction (HOR) by including an iridium alloy including iridium (Ir) and nickel (Ni). The iridium alloy catalyst according to the present disclosure is rapidly converted to an iridium alloy catalyst in an oxide form and an iridium alloy catalyst in a metallic form according to applied voltage by controlling its crystallinity. Thus, even in case an oxide layer is formed after the OER, the oxidation layer disappears during the HER and HOR and the properties of an iridium metal catalyst remain, thereby maintaining HER/HOR performance.

公开(公告)号：US20240368101A1

公开(公告)日：2024-11-07

申请号：US18379709

申请日：2023-10-13

Applicant: Korea Institute of Science and Technology

Inventor： Dong Ki LEE ,  Byeong Cheul Moon ,  Jai Hyun Koh ,  Woong Hee Lee ,  Dahye Won ,  Ung Lee ,  Hyung-Suk Oh ,  Byoung Koun Min

IPC: C07D307/68

Abstract: Exemplary embodiments of the present invention may provide a continuous production system for 2,5-furandicarboxylic acid (FDCA), the continuous production system including: raw material supply units supplying an aqueous 5-hydroxymethylfurfural (HMF) solution and a basic aqueous solution, respectively; a micro-mixing unit mixing the aqueous HMF solution and the basic aqueous solution supplied from the raw material supply units, respectively, to form a raw material mixture; an electrochemical reaction unit synthesizing FDCA while passing the raw material mixture introduced from the micro-mixing unit in a single pass; and a product storage unit storing a product discharged from the electrochemical reaction unit.