{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T11:21:51Z","timestamp":1753874511157,"version":"3.41.2"},"reference-count":74,"publisher":"AIP Publishing","issue":"17","funder":[{"DOI":"10.13039\/501100004663","name":"Ministry of Science and Technology, Taiwan","doi-asserted-by":"publisher","award":["MOST 107-2112-M-008-027-MY2"],"award-info":[{"award-number":["MOST 107-2112-M-008-027-MY2"]}],"id":[{"id":"10.13039\/501100004663","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2023,5,7]]},"abstract":"<jats:p>We have studied the decomposition of methanol-d4 on thin film Al2O3\/NiAl(100) under near-ambient-pressure conditions, with varied surface-probe techniques and calculations based on density-functional theory. Methanol-d4 neither adsorbed nor reacted on Al2O3\/NiAl(100) at 400\u00a0K under ultrahigh vacuum conditions, whereas they dehydrogenated, largely to methoxy-d3 (CD3O*, * denoting adsorbates) and formaldehyde-d2 (CD2O*), on the surface when the methanol-d4 partial pressure was increased to 10\u22123\u00a0mbar and above. The dehydrogenation was facilitated by hydroxyl (OH* or OD*) from the dissociation of little co-adsorbed water; a small fraction of CD2O* interacted further with OH* (OD*) to form, via intermediate CD2OOH* (CD2OOD*), formic acid (DCOOH* or DCOOD*). A few surface carbonates were also yielded, likely on the defect sites of Al2O3\/NiAl(100). The results suggest that alumina not only supports metal clusters but also participates in reactions under realistic catalytic conditions. One may consider accordingly the multiple functions of alumina while designing ideal catalysts.<\/jats:p>","DOI":"10.1063\/5.0151135","type":"journal-article","created":{"date-parts":[[2023,5,2]],"date-time":"2023-05-02T10:05:25Z","timestamp":1683021925000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":4,"title":["Decomposition of methanol-d4 on a thin film of Al2O3\/NiAl(100) under near-ambient-pressure conditions"],"prefix":"10.1063","volume":"158","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-2064-5956","authenticated-orcid":false,"given":"Guan-Jr","family":"Liao","sequence":"first","affiliation":[{"name":"Department of Physics, National Central University 1 , No. 300 Jhongda Road, Jhongli 32054, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4263-9411","authenticated-orcid":false,"given":"Wen-Hao","family":"Hsueh","sequence":"additional","affiliation":[{"name":"Department of Chemistry, National Taiwan Normal University 2 , No. 88, Sec. 4, Ting-Zhou Road, Taipei, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0016-5027","authenticated-orcid":false,"given":"Yu-Hsiang","family":"Yen","sequence":"additional","affiliation":[{"name":"Department of Physics, National Central University 1 , No. 300 Jhongda Road, Jhongli 32054, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi-Chan","family":"Shih","sequence":"additional","affiliation":[{"name":"Department of Physics, National Central University 1 , No. 300 Jhongda Road, Jhongli 32054, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3108-4422","authenticated-orcid":false,"given":"Chia-Hsin","family":"Wang","sequence":"additional","affiliation":[{"name":"National Synchrotron Radiation Research Center 3 , 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3465-4067","authenticated-orcid":false,"given":"Jeng-Han","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Chemistry, National Taiwan Normal University 2 , No. 88, Sec. 4, Ting-Zhou Road, Taipei, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6950-8396","authenticated-orcid":false,"given":"Meng-Fan","family":"Luo","sequence":"additional","affiliation":[{"name":"Department of Physics, National Central University 1 , No. 300 Jhongda Road, Jhongli 32054, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"317","published-online":{"date-parts":[[2023,5,2]]},"reference":[{"key":"2023081104040374000_c1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1016\/s0167-5729(96)00011-8","volume":"27","year":"1997","journal-title":"Surf. 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