{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T15:53:41Z","timestamp":1791302021510,"version":"4.1.0"},"reference-count":26,"publisher":"American Chemical Society (ACS)","issue":"39","license":[{"start":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T00:00:00Z","timestamp":1790035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004421","name":"Politechnika Warszawska","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004421","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Trumpf Huettinger"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,10,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>A gliding arc plasma reactor operated with highly concentrated ammonia (90 vol % NH3 in N2) was investigated using spatially resolved optical emission spectroscopy, electrical diagnostics, and gas chromatography. Fitting the N2 second positive system (310\u2013360 nm) yielded rotational and vibrational temperature profiles along the arc for 50 Hz and Bipolar HV high-frequency (25\u201335 kHz) excitation. Results indicate local thermal equilibrium near ignition and a transition to nonequilibrium along the arc, which is a typical characteristic of a gliding arc. Bipolar HV kHz excitation produced higher vibrational temperatures, enhanced N2+ emission downstream, and substantially increased reaction rates localized in the discharge channel. It demonstrates improved energy concentration and higher ammonia conversion compared to 50 Hz, and promising potential for energy-efficient hydrogen recovery from ammonia.<\/jats:p>","DOI":"10.1021\/acsomega.6c04814","type":"journal-article","created":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T15:03:48Z","timestamp":1790089428000},"page":"59147-59153","source":"Crossref","is-referenced-by-count":0,"title":["Influence of Different\nFrequency Power Generators\non Plasma Temperatures in the Ammonia Decomposition Process: OES-Based\nTemperature Profiling in a Gliding Arc"],"prefix":"10.1021","volume":"11","author":[{"given":"Michalina","family":"Perron","sequence":"first","affiliation":[{"name":"Warsaw University of Technology , , Noakowskiego 3 , ,","place":["Warszawa, Poland, 00-664"]},{"name":"TRUMPF Huettinger Sp. z o.o. , Marecka 47 , ,","place":["Zielonka, Poland, 05-220"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tim","family":"Gehring","sequence":"additional","affiliation":[{"name":"TRUMPF Hu\u0308ttinger GmbH + Co. KG , Bo\u0308tzinger Stra\u00dfe 80 , ,","place":["Freiburg, Germany, 79111"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mateusz","family":"Wiosna","sequence":"additional","affiliation":[{"name":"TRUMPF Huettinger Sp. z o.o. , Marecka 47 , ,","place":["Zielonka, Poland, 05-220"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wojciech","family":"Gajewski","sequence":"additional","affiliation":[{"name":"TRUMPF Huettinger Sp. z o.o. , Marecka 47 , ,","place":["Zielonka, Poland, 05-220"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4219-8476","authenticated-orcid":true,"given":"Micha\u0142","family":"M\u0142otek","sequence":"additional","affiliation":[{"name":"Warsaw University of Technology , , Noakowskiego 3 , ,","place":["Warszawa, Poland, 00-664"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,22]]},"reference":[{"key":"2026100610465680000_cit1","doi-asserted-by":"publisher","first-page":"737","DOI":"10.1021\/acssuschemeng.4c08899","article-title":"Reversed Plasma\nCatalysis Process Design for Efficient Ammonia Decomposition","volume":"13","author":"Van Steenweghen","year":"2025","journal-title":"ACS Sustainable Chem. Eng."},{"key":"2026100610465680000_cit2","article-title":"Spatially\nresolved modelling of NH3 cracking in warm plasma","volume":"508","author":"Marnef","year":"2025","journal-title":"Chem. Eng. J."},{"issue":"2","key":"2026100610465680000_cit3","doi-asserted-by":"publisher","first-page":"211","DOI":"10.1016\/S0360-1285(98)00021-5","article-title":"Gliding arc gas\ndischarge","volume":"25","author":"Fridman","journal-title":"Prog. Energy Combust. Sci."},{"key":"2026100610465680000_cit4","doi-asserted-by":"publisher","DOI":"10.3390\/app12136366","article-title":"Spectroscopic Characterization\nof a Pulsed Low-Current High-Voltage Discharge Operated at Atmospheric\nPressure","volume":"12","author":"Szulc","year":"2022","journal-title":"Appl. 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OH spectra of surface\nbarrier discharge at argon\/water interface","volume":"50","author":"Vora\u0301c\u030c","year":"2017","journal-title":"J. Phys. D:Appl. Phys."},{"issue":"7","key":"2026100610465680000_cit17","doi-asserted-by":"publisher","first-page":"746","DOI":"10.1177\/1468087418791684","article-title":"Measurement of vibrational\nand rotational\ntemperature in spark-discharge plasma by optical emission spectroscopy.\nChange in thermal equilibrium characteristics of plasma under air\nflow","volume":"20","author":"Kinoshita","year":"2019","journal-title":"I. J. Engine Res."},{"issue":"75","key":"2026100610465680000_cit18","doi-asserted-by":"publisher","DOI":"10.1016\/j.ces.2025.121815","article-title":"Plasma-catalytic\ndecomposition of\nhighly concentrated ammonia for a chemical hydrogen storage","volume":"314","author":"Perron","year":"2025","journal-title":"Chem. Eng. 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