設施農業：農業綠能開發與碳匯補償【化學工程學系陳志銘 特聘教授】
| 論文篇名 | 英文： Electrochemical oxidation of seawater using vanadium facilitated quaternary layered double hydroxides integrated with sulfur-doped carbon dots 中文：使用與摻硫碳點整合的釩促進四元層狀雙氫氧化物對海水進行電化學氧化 |
| 期刊名稱 | Electrochimica Acta |
| 發表年份,卷數,起迄頁數 | 2024, 497, 114529 |
| 作者 | Vedanarayanan, Mahalakshmi; Pitchai, Chandrasekaran; Chen, Chih-Ming(陳志銘)*; Gopalakrishnan, Sethuraman Mathur |
| DOI | 10.1016/j.electacta.2024.144529 |
| 中文摘要 | 本研究引入一種用於永續能源產生的電催化新方法，揭示了由泡沫鎳（NF）支撐的MnCoCrV LDH@SCDs複合材料作為專門為海水電解設計的高性能催化劑。這種電催化劑透過將硫摻雜碳點 (SCD) 融入MnCoCrV 層狀雙氫氧化物 (LDH) 並將其沉積到泡沫鎳基材上而構建，在鹼性海水條件下的析氧反應 (OER ) 中表現出卓越的效率。 MnCoCrV LDH@SCDs/NF 的電流密度高達 10 mA/cm²，最小過電位為 209.4 mV。此外，它還展示 81.5 mV/dec 降低的 Tafel 值，表明動力學更快。該電極保持令人印象深刻的長期穩定性，在 10 mA/cm² 的恆定電流密度下維持效率約 50 小時。增加的表面積和降低的電荷轉移電阻有助於在海水中發揮顯著的電催化性能。這種性能主要歸功於電導率的提高，這是由於 SCD 中高價態釩離子和電化學活性官能基的協同作用所致。 MnCoCrV LDH@SCDs/NF 電催化劑因其複雜的特性而脫穎而出，不僅能促進有效的電子轉移，還能有效抵消海水電解中氯離子的干擾。這項研究強調了 MnCoCrV LDH@SCDs/NF 作為電催化劑研究的關鍵發展的創新性質，為利用海水中的可再生能源提供了一條有前途的途徑。 |
| 英文摘要 | This research introduces a novel approach to electrocatalysis for sustainable energy generation, revealing the MnCoCrV LDH@SCDs composite supported by nickel foam (NF) as a high-performance catalyst specifically designed for seawater electrolysis. Constructed by incorporating sulfur-doped carbon dots (SCDs) into MnCoCrV layered double hydroxide (LDH) and depositing them onto a nickel foam substrate, this electrocatalyst demonstrates exceptional efficiency in the oxygen evolution reaction (OER) under alkaline seawater conditions. MnCoCrV LDH@SCDs/NF attains a noteworthy current density of 10 mA/cm² with a minimal overpotential of 209.4 mV. Additionally, it demonstrates a reduced Tafel value of 81.5 mV/dec, indicating faster kinetics. The electrode maintains impressive long-term stability, sustaining efficiency for approximately 50 h at a constant current density of 10 mA/cm². The increased surface area and reduced charge transfer resistance contribute to substantial electrocatalytic performance in seawater. This performance is primarily attributed to improved conductivity, resulting from synergistic contributions from high-valence-state vanadium ions and electrochemically active functional groups in SCDs. The MnCoCrV LDH@SCDs/NF electrocatalyst stands out for its intricate features that not only promote efficient electron transfer but also effectively counteract interference from chloride anions in seawater electrolysis. This study underscores the innovative nature of MnCoCrV LDH@SCDs/NF as a pivotal development in electrocatalyst research, offering a promising avenue for harnessing renewable energy from seawater. |
| 發表成果與本中心研究主題相關性 | 氫能是可再生能源的重要發展策略，是提供設施農業自主能源供給的可行方向之一。 |
