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The synthesis involved the co-assembly of aluminum precursors with the surfactants, followed by calcination to remove the templates, resulting in a porous alumina structure that serves as a support. Platinum (Pt) was then loaded onto the surfactant-modified alumina support (CTAB) at a concentration of 0.9 wt% Pt using microwave-assisted solution (MAS) and ultrasonic techniques. The synthesized catalysts were characterized using nitrogen adsorption-desorption, X-ray diffraction (XRD), thermal analysis, and transmission electron microscopy (TEM) to assess their textural properties, thermal stability, and morphology. The catalytic activity of the Pt-loaded alumina catalysts was evaluated for n-hexane dehydrocyclization, cyclohexane dehydrogenation, and ethanol dehydration. Both the ultrasonic technique and microwave irradiation were employed as in situ reduction methods to produce stable, well-dispersed platinum nanoparticles with average diameters not exceeding 6\u00a0nm. The catalytic performance results indicated that the 0.9 wt% Pt\/Al\u2082O\u2083 (MAS) nanocatalyst outperformed its US-prepared counterpart. It achieved the highest conversion rate of 86% in cyclohexane dehydrogenation at 450\u00a0\u00b0C. In n-hexane dehydrocyclization, the MAS catalyst produced a maximum benzene yield of 48%. Additionally, in ethanol dehydration, it demonstrated superior activity with a maximum ethylene yield of 52% under the tested conditions.<\/jats:p>","DOI":"10.1038\/s41598-026-52286-0","type":"journal-article","created":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T06:45:22Z","timestamp":1779259522000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A comparative study between microwaves and ultrasound assisted in- situ reduction of platinum supported \u03b3-Al2O3 using different organic templates for enhanced catalytic activity and potential applications"],"prefix":"10.1038","volume":"16","author":[{"given":"Rasha S.","family":"Mohamed","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heba M.","family":"Gobara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fikry H.","family":"Khalil","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Salah A.","family":"Hassan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,5,20]]},"reference":[{"key":"52286_CR1","first-page":"288","volume":"2","author":"S Said","year":"2019","unstructured":"Said, S., Mikhail, S. & Riad, M. 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