Im, Taehun Lee, Joo-Won Kim, Sung-Chul Jun, Sungju Lee, Jae-Seung Kim, Min-Seok Lee, Jae Kyun Jeong, Sohee 2025-04-09T08:00:37Z 2025-04-09T08:00:37Z 2025-04-09 2025-03 2050-7488 https://pubs.kist.re.kr/handle/201004/152203 Noble metal catalysts are highly efficient for the hydrogen evolution reaction (HER), but their scarcity and cost limit their widespread use. Copper-based materials, which are abundant and inexpensive, offer a promising alternative. However, their intrinsic limitations, such as weak hydrogen adsorption and poor stability, often restrict their catalytic performance. This study introduces a novel strategy for synthesizing a highly stable HER catalyst through the electrochemical activation of a copper-based coordination polymer. The resulting composite material exhibits a unique structure with aligned Cu2+/Cu+/Cu0 active sites, which significantly enhances HER activity and long-term stability. The formation of these active sites is influenced by the sulfur-rich environment of the coordination polymers. This work provides valuable insights for developing efficient and sustainable HER catalysts using earth-abundant materials. English ROYAL SOC CHEMISTRY Electrochemically activated copper-based catalyst from a coordination polymer for stable hydrogen evolution reaction Article 10.1039/d5ta00506j 1 JOURNAL OF MATERIALS CHEMISTRY A, v.13, no.13, pp.9055 - 9063 JOURNAL OF MATERIALS CHEMISTRY A 13 13 9055 9063 Y scie scopus 001446867300001 2-s2.0-105000238481 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article NANOWIRE ARRAYS WATER CUO ELECTROCATALYSTS