{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T02:13:18Z","timestamp":1788747198053,"version":"build-2803163510"},"reference-count":46,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2020,2,16]],"date-time":"2020-02-16T00:00:00Z","timestamp":1581811200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001711","name":"Schweizerischer Nationalfonds zur F\u00f6rderung der Wissenschaftlichen Forschung","doi-asserted-by":"publisher","award":["R'Equip 170729"],"award-info":[{"award-number":["R'Equip 170729"]}],"id":[{"id":"10.13039\/501100001711","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Science"],"published-print":{"date-parts":[[2020,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Fast and selective detection of NH\n                    <jats:sub>3<\/jats:sub>\n                    at parts\u2010per\u2010billion (ppb) concentrations with inexpensive and low\u2010power sensors represents a long\u2010standing challenge. Here, a room temperature, solid\u2010state sensor is presented consisting of nanostructured porous (78%) CuBr films. These are prepared by flame\u2010aerosol deposition of CuO onto sensor substrates followed by dry reduction and bromination. Each step is monitored in situ through the film resistance affording excellent process control. Such porous CuBr films feature an order of magnitude higher NH\n                    <jats:sub>3<\/jats:sub>\n                    sensitivity and five times faster response times than conventional denser CuBr films. That way, rapid (within 2.2 min) sensing of even the lowest (e.g., 5 ppb) NH\n                    <jats:sub>3<\/jats:sub>\n                    concentrations at 90% relative humidity is attained with outstanding selectivity (30\u2013260) over typical confounders including ethanol, acetone, H\n                    <jats:sub>2<\/jats:sub>\n                    , CH\n                    <jats:sub>4<\/jats:sub>\n                    , isoprene, acetic acid, formaldehyde, methanol, and CO, superior to state\u2010of\u2010the\u2010art sensors. This sensor is ideal for hand\u2010held and battery\u2010driven devices or integration into wearable electronics as it does not require heating. From a broader perspective, the process opens exciting new avenues to also explore other bromides and classes of semiconductors (e.g., sulfides, nitrides, carbides) currently not accessible by flame\u2010aerosol technology.\n                  <\/jats:p>","DOI":"10.1002\/advs.201903390","type":"journal-article","created":{"date-parts":[[2020,2,17]],"date-time":"2020-02-17T02:13:53Z","timestamp":1581905633000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":69,"title":["Rapid and Selective NH\n                    <sub>3<\/sub>\n                    Sensing by Porous CuBr"],"prefix":"10.1002","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4127-752X","authenticated-orcid":false,"given":"Andreas T.","family":"G\u00fcntner","sequence":"first","affiliation":[{"name":"Particle Technology Laboratory Department of Mechanical and Process Engineering ETH Zurich  Sonneggstrasse 3 Zurich 8092 Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Markus","family":"Wied","sequence":"additional","affiliation":[{"name":"Particle Technology Laboratory Department of Mechanical and Process Engineering ETH Zurich  Sonneggstrasse 3 Zurich 8092 Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicolay J.","family":"Pineau","sequence":"additional","affiliation":[{"name":"Particle Technology Laboratory Department of Mechanical and Process Engineering ETH Zurich  Sonneggstrasse 3 Zurich 8092 Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sotiris E.","family":"Pratsinis","sequence":"additional","affiliation":[{"name":"Particle Technology Laboratory Department of Mechanical and Process Engineering ETH Zurich  Sonneggstrasse 3 Zurich 8092 Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,2,16]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"crossref","unstructured":"United States Geological Survey: Mineral Commodity Summaries \u2013 Nitrogen Statistics and Information 2019 https:\/\/doi.org\/10.3133\/70202434.","DOI":"10.3133\/70202434"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.8b01825"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/ki.1997.324"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10620-011-1858-9"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac303100k"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1088\/0967-3334\/27\/4\/001"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1021\/es026133x"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1088\/1752-7155\/8\/1\/014001"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac403472d"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1021\/acssensors.8b01690"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201401992"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/advs.201600319"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1021\/acssensors.8b00589"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.8b09169"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aca.2004.03.071"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp010466j"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0925-4005(03)00408-8"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.snb.2005.05.014"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.7b04530"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpowsour.2013.04.147"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tsf.2012.06.043"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/0167-2738(95)00237-5"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/0470068329"},{"key":"e_1_2_7_24_1","doi-asserted-by":"crossref","first-page":"465","DOI":"10.1017\/CBO9780511805134","volume-title":"Diffusion: Mass Transfer in Fluid Systems","author":"Cussler E. 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