Hoai Ta Qui Thanh, Nhiem Ly Tan
Institute of Chemical Technology, Vietnam Academy of Science and Technology 1A TL29 Street, Thanh Loc Ward, District 12 Ho Chi Minh City 700000 Vietnam
Faculty of Chemical and Food Technology, Ho Chi Minh City University of Technology and Education 01 Vo Van Ngan Street, Linh Chieu Ward, Thu Duc City Ho Chi Minh City 700000 Vietnam
Nanoscale Adv. 2025 Jan 13;7(6):1543-1551. doi: 10.1039/d4na00947a. eCollection 2025 Mar 11.
Photocatalytic methane oxidation under mild conditions using single-atom catalysts remains an advanced technology. In this work, gold single atoms (Au SAs) were introduced onto TiO nanostructures using a simple method. The resulting performance demonstrated effective conversion of methane into H and C products at room temperature. The as-synthesized Au SA/TiO exhibited a high hydrogen production rate of 2190 μmol g, with selectivity reaching up to 58% under optimized conditions. The methane oxidation mechanism was investigated, revealing a methyl radical pathway for generating value-added chemicals. This research provides a strategy for photocatalytic methane conversion over single-atom-supported photocatalysts.
使用单原子催化剂在温和条件下进行光催化甲烷氧化仍然是一项先进技术。在这项工作中，采用一种简单方法将金单原子（Au SAs）引入TiO纳米结构中。所得性能表明在室温下甲烷能有效转化为H和C产物。所合成的Au SA/TiO在优化条件下表现出高达2190 μmol g的高产氢率，选择性高达58%。对甲烷氧化机理进行了研究，揭示了生成增值化学品的甲基自由基途径。该研究为单原子负载光催化剂上的光催化甲烷转化提供了一种策略。
