경희대학교 · Energy
이 교수의 연구실은 고성능 전기화학적 촉매 시스템 개발에 초점을 맞추고 있으며, 주로 고체 전해질 막 수소 분해 및 연료전지에서의 효율적이고 내구성 있는 촉매를 위한 나노구조적 촉매 및 지지체의 설계와 특성화를 연구하고 있습니다. 특히 이ridium 기반 촉매, 도핑된 SnO₂ 지지체, 그리고 탄소 나노섬유를 활용한 전기화학적 안정성 향상 전략이 핵심입니다. 전기화학적 안정성과 전자적 상호작용을 통한 촉매 내구성 향상 기반의 원리적 이해를 추구합니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Redox-active support materials can help reduce the noble-metal loading of a solid chemical catalyst while offering electronic catalyst-support interactions beneficial for catalyst durability. This is well known in heterogeneous gas-phase catalysis but much less discussed for electrocatalysis at electrified liquid-solid interfaces. Here, we demonstrate experimental evidence for electronic catalyst-support interactions in electrochemical environments and study their role and contribution to the co
Reducing the noble-metal catalyst content of acid Polymer Electrolyte Membrane (PEM) water electrolyzers without compromising catalytic activity and stability is a goal of fundamental scientific interest and substantial technical importance for cost-effective hydrogen-based energy storage. This study presents nanostructured iridium nanodendrites (Ir-ND) supported on antimony doped tin oxide (ATO) as efficient and stable water splitting catalysts for PEM electrolyzers. The active Ir-ND structures
The M‐doped tin oxides (M = Sb, F, and In) to be used as catalyst support are synthesized by using templating process with tetradecylamine (TDA) as the template, combined with a hydrothermal (HT) method to improve its thermal stability. The obtained materials are characterized by XRD, SAXS, TEM, EDX, SEM, and BET to study microstructure and physical properties, which have a mesoporous structure, small particle size, and high surface area (125–263 m 2 g –1 ). The materials show an overall conduct
Abstract As an alternative to the oxidative acid treatment, a noncovalent π – π interaction method is employed to deposit Pt electrocatalysts on highly hydrophobic carbon nanofibers (CNFs) for the application of polymer electrolyte membrane (PEM) fuel cells. Three different functionalization agents, namely benzyl mercaptan (BM), 1‐aminopyrene (AP), and 1‐pyrenecarboxylic acid (PCA), are used to functionalize CNFs and the effect of these groups on the electrochemical properties is examined. While
Ordered intermetallic PtCo synthesized from N-doped graphitic carbon-containing Co presents the high durability with low Pt loading after 30 000 load-simulated cycles in proton exchange membrane fuel cells.
