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We reduce PtCl\n                    <jats:sub>4<\/jats:sub>\n                    <jats:sup>2\u2212<\/jats:sup>\n                    with methanol to create platinum atoms forming strongly anchored platinum clusters with controlled atom counts on selected surfaces of alumina. We resolved the atomic structures of the platinum clusters and could correlate the degree of cluster-support interaction, catalytic activity, and durability with atom counts. We demonstrate the promise of this approach by developing platinum clusters that exhibit the highest catalytic performance per platinum usage reported to date for hydrogen production from the dehydrogenation of cyclic hydrocarbon hydrogen carriers.\n                  <\/jats:p>","DOI":"10.1126\/science.aeb3087","type":"journal-article","created":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T18:00:47Z","timestamp":1779991247000},"page":"958-965","update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":7,"title":["Dependence of catalytic properties of strongly supported platinum clusters with atom counts"],"prefix":"10.1126","volume":"392","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-3067-4077","authenticated-orcid":true,"given":"Chyan Kyung","family":"Song","sequence":"first","affiliation":[{"name":"School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Republic of 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