循環農業：農業剩餘資材及生質衍生物高值化轉換再利用【環境工程學系/林坤儀特聘教授】
| 論文篇名 | 英文：Hierarchical porous cobalt nanoparticles encapsulated in heteroatom-doped hollow carbon as an enhancing multifunctional catalyst for hydrolysis of sodium borohydride and hydrogenation of bromate in water 中文：封裝在雜原子摻雜中空碳中的多級多孔鈷奈米顆粒作為增強型多功能催化劑，用於硼氫化鈉水解和溴酸鹽在水中的氫化 |
| 期刊名稱 | Surfaces and Interfaces |
| 發表年份,卷數,起迄頁數 | 2024, 48, 104329 |
| 作者 | Tran, Dinh Trinh; Van, Huu Tap; Nguyen, Lan Huong; Van Quang, Nguyen; Tsai, Yu-chih; Lin, Kun-Yi Andrew(林坤儀)*; Tuan, Duong Dinh |
| DOI | 10.1016/j.surfin.2024.104329 |
| 中文摘要 | 近年來，多功能多相催化劑因其在不同催化領域同時具有獨特的催化活性而得到不斷的探索。在這裡，採用奇特的多面體構型Co-ZIF作為載體，在惰性氣氛中通過酸刻和高溫碳化兩步改性製備了封裝在氮摻雜空心碳中的鈷（Co）奈米粒子（表示為Co @NHC）。由於具有高比表面積和孔體積的有趣的多面體中空結構，提供豐富的活性位點，Co@NHC在催化水中NaBH4水解和有毒溴酸鹽氫化方面表現出優異的催化活性。實驗結果表明，Co@NHC可以有效增強H2的生成，H2生成率為1515.4 mL min-1 gcat-1，同時Co@NHC/NaBH 4體系計算的活化能( E a )僅為12.6 kJ mol -1。此外，Co@NHC和NaBH 4的組合可以透過催化加氫進一步將有毒的溴酸根離子還原為溴化物，最大溴酸鹽去除能力為390.6 μmol g-1。更重要的是，由於其強磁化，Co@NHC在反應後可以簡單地回收，使其在兩種催化應用中都能很好地保持獨特的結構和多次連續循環的催化活性。此外，也提出了催化NaBH4水解和溴酸鹽加氫的合理反應機制這項工作開創了一種製備磁性多相鈷基催化劑的有前途的方法，該催化劑可實際應用於各個催化領域。 |
| 英文摘要 | Multifunctional heterogeneous catalysts have been consistently explored in recent years because of their distinctive catalytic activity in different catalysis areas at once. Here, a cobalt (Co) nanoparticles encapsulated in nitrogen-doped hollow carbon (denoted as Co@NHC) is prepared by two-step modifications of acid etching and high temperature carbonization in the inert atmosphere using a peculiar polyhedral configuration Co-ZIF as an initial template. Benefiting from an intriguing polyhedral configuration hollow structure with high specific surface area and pore volume supplying plentiful active sites, Co@NHC shows exceptional catalytic activity in catalyzing hydrolysis of NaBH4 and hydrogenation of toxic bromate in water. From experimental results, Co@NHC could efficiently enhance the generation of H2 with a H2 generation rate of 1515.4 mL min−1 gcat−1 meanwhile the activation energy (Ea) calculated from Co@NHC/NaBH4 system was only 12.6 kJ mol−1. Besides, the combination of Co@NHC and NaBH4 could further reduce toxic bromate ions into bromide via catalytic hydrogenation with a maximum bromate removal capacity of 390.6 μmol g−1. More importantly, due to its strong magnetization, Co@NHC could be simply recovered after reactions, making it well-preserve the unique structure as well as catalytic activity for multiple continuous recycles in both catalytic applications. Additionally, the plausible reaction mechanisms in catalyzing hydrolysis of NaBH4 and hydrogenation of bromate were also proposed. This work has pioneered a promising approach on preparing an engrossing magnetic heterogeneous Co-based catalyst that is practically applicable in various areas of catalysis. |
| 發表成果與本中心研究主題相關性 | 透過本研究可進一步建立開發本研究計算所需之觸媒材料，並釐清可適合應用之環境條件! |
