High methane conversion (1.1 mmol/h) and C2 selectivity (ca. 90%) were achieved simultaneously on Au60s/TiO2 for photocatalytic OCM. The enhanced activity was attributed to the introduction of Au co-catalyst, which played multi-functions roles: efficient hole acceptor, methane adsorption and activation site, and C–C coupling center. This work underscores the essential role of multifunctional co-catalysts, delving deeply into the structure-activity relationship through a synergistic combination of experimental and theoretical analysis. It is poised to serve as a significant milestone to inspire researchers in the field of photocatalytic OCM and beyond.

中文翻译：

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甲烷光催化氧化偶联的高效选择性催化剂

用于光催化 OCM 的 Au60s/TiO2 同时实现了高甲烷转化率 (1.1 mmol/h) 和 C2 选择性 (约 90%)。活性的增强归因于Au助催化剂的引入，它发挥了多功能作用：高效的空穴受体、甲烷吸附和活化位点以及C-C偶联中心。这项工作强调了多功能助催化剂的重要作用，通过实验和理论分析的协同结合深入研究了结构-活性关系。它有望成为一个重要的里程碑，激励光催化 OCM 及其他领域的研究人员。