The 2nd Youth Forum on Metal Clusters was held on September 20-22, 2024 in Hefei, Anhui Province, China, hosted by Anhui University, and organized by the College of Chemistry and Chemical Engineering and the Institute of Material Science and Information Technology of Anhui University. Dr. Xiaoyan Sun, Ph.D. student Lili Zhang, Ph.D. student Shanshan Lin, Ph.D. student Cong Fang, and research assistant Guojie Zhou attended the conference, and Dr. Xiaoyan Sun gave a presentation entitled “In situ mass spectrometry for cluster catalysis”.