{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T19:45:10Z","timestamp":1792784710101,"version":"4.5.0"},"reference-count":45,"publisher":"American Chemical Society (ACS)","issue":"42","license":[{"start":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T00:00:00Z","timestamp":1791244800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000146","name":"Division of Chemical, Bioengineering, Environmental and Transport Systems","doi-asserted-by":"publisher","award":["CBET-2308433"],"award-info":[{"award-number":["CBET-2308433"]}],"id":[{"id":"10.13039\/100000146","id-type":"DOI","asserted-by":"publisher"}]},{"name":"TEES Turbomachinery Laboratory, Texas A and M University","id":[{"id":"https:\/\/ror.org\/01f5ytq51","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,10,22]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Ammonia\/propane pyrolysis and oxidation mixtures were studied using NH2 laser spectroscopy to obtain NH2 time histories in a shock tube. An NH3 diagnostic based on a quantum cascade laser was used to verify the initial ammonia concentrations, while a 597.375-nm laser diagnostic measured NH2 in the post-reflected shock region. A 75\/25% (by volume) ammonia\/propane pyrolysis mixture, diluted in 99% argon, was tested between 1682 and 2926 K at near-atmospheric pressure. Three elementary reactions\u2500C3H8 \u21c6 C3H7 + H, NH3 + H \u21c6 NH2 + H2, and NH2 + H \u21c6 NH + H2\u2500were identified as influential for accurately modeling NH2. Additionally, mixtures composed of 75\/25% ammonia\/propane with O2 in 99% argon were tested at equivalence ratios of 0.5, 1.0, and 2.0 between 1318 and 2404 K. Four key reactions, namely C3H8 + M \u21c6 C2H5 + CH3 + M; NH3 + H \u21c6 NH2 + H2; NH3 + OH \u21c6 NH2 + H2O; and O2 + H \u21c6 O + OH, heavily influenced the production of NH2 at early time scales, with CH4 + M \u21c6 CH3 + H + M and H2 + O \u21c6 H + OH being responsible for the delayed destruction of NH2. The data presented in this study are available in the supplementary material for chemical kinetics modeling validation.<\/jats:p>","DOI":"10.1021\/acs.jpca.6c04551","type":"journal-article","created":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T20:01:22Z","timestamp":1791316882000},"page":"8474-8481","source":"Crossref","is-referenced-by-count":0,"title":["NH2 Measurements\nduring the Pyrolysis and\nOxidation of Ammonia\/Propane Mixtures in a Shock Tube"],"prefix":"10.1021","volume":"130","author":[{"given":"Matthew","family":"Abulail","sequence":"first","affiliation":[{"name":"Texas A&M University , , , ,","place":["College Station, Texas, United States, 77843"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cade W.","family":"Cash","sequence":"additional","affiliation":[{"name":"Texas A&M University , , , ,","place":["College Station, Texas, United States, 77843"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8658-6326","authenticated-orcid":true,"given":"Olivier","family":"Mathieu","sequence":"additional","affiliation":[{"name":"Texas A&M University , , , ,","place":["College Station, Texas, United States, 77843"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4572-5916","authenticated-orcid":true,"given":"Eric L.","family":"Petersen","sequence":"additional","affiliation":[{"name":"Texas A&M University , , , ,","place":["College Station, Texas, United States, 77843"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,10,6]]},"reference":[{"key":"2026102208064906300_cit1","doi-asserted-by":"publisher","DOI":"10.1021\/acsinfocus.7e7013","volume-title":"Carbon-Free Fuels","author":"Mathieu","year":"2023"},{"key":"2026102208064906300_cit2","doi-asserted-by":"publisher","first-page":"100053","DOI":"10.1016\/j.jfueco.2022.100053","article-title":"Review\non the Recent\nAdvances on Ammonia Combustion from the Fundamentals to the Applications","volume":"10","author":"Elbaz","year":"2022","journal-title":"Fuel Commun."},{"issue":"1","key":"2026102208064906300_cit3","doi-asserted-by":"publisher","first-page":"233","DOI":"10.1016\/j.proci.2022.08.016","article-title":"A Shock-Tube Study of NH3 and NH3\/H2 Oxidation Using Laser Absorption\nof NH3 and H2O","volume":"39","author":"Alturaifi","year":"2023","journal-title":"Proc.\nCombust. 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