113學年材料所-第十二週 專題研討課程 演講公告 (113年11月28日)
2024.11.28
題目: Synchrotron Radiation Characterization to Understand the Nature of Catalysts during Operation
演講者: 林彥谷 合聘副教授
現職: 國立陽明交通大學 材料科學與工程系 合聘副教授
時間: 113年11月28日(四) 下午15:10~17:00
地點: 成功大學成功校區三系館 鋼構區(3F)共同教室A1302演講廳
演講摘要:
The energy transition is one of today's greatest societal challenges. Electrocatalyst materials, central to electrochemical energy conversion devices like fuel cells and water electrolyzers, are expected to play an increasingly crucial role in the near future. To enable the widespread adoption of electrochemical systems, the urgent challenge in developing electrocatalyst materials is achieving a combination of high activity and long-term stability at low cost. Despite the variety in electrocatalyst materials, driven by the different types of electrochemical systems (such as noble vs. non-noble metals in acidic vs. alkaline media) and the specific requirements of various electrochemical processes (oxidation or reduction reactions of different species at varying electrode potentials), the activity and stability properties of electrocatalysts largely depend on their (surface) chemistry and structure. These properties, and their changes over time, can be directly studied using in situ or operando synchrotron X-ray techniques. This presentation will highlight the versatility of these techniques in addressing key challenges in electrocatalyst materials development.
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