{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T15:05:52Z","timestamp":1792163152317,"version":"4.4.0"},"reference-count":74,"publisher":"Wiley","issue":"34","license":[{"start":{"date-parts":[[2020,7,1]],"date-time":"2020-07-01T00:00:00Z","timestamp":1593561600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"published-print":{"date-parts":[[2020,8,17]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Reducing greenhouse gas and pollutant emissions is one of the most stringent priorities of our society to minimize their dramatic effects on health and environment. Natural gas (NG) engines, in particular at lean conditions, emit less CO\n                    <jats:sub>2<\/jats:sub>\n                    in comparison to combustion engines operated with liquid fuels but NG engines still require emission control devices for NO\n                    <jats:sub>\n                      <jats:italic>x<\/jats:italic>\n                    <\/jats:sub>\n                    removal. Using state\u2010of\u2010the\u2010art technologies for selective catalytic reduction (SCR) of NO\n                    <jats:sub>\n                      <jats:italic>x<\/jats:italic>\n                    <\/jats:sub>\n                    with NH\n                    <jats:sub>3<\/jats:sub>\n                    , we evaluated the interplay of the reducing agent NH\n                    <jats:sub>3<\/jats:sub>\n                    and formaldehyde, which is always present in the exhaust of NG engines. Our results show that a significant amount of highly toxic hydrogen cyanide (HCN) is formed. All catalysts tested partially convert formaldehyde to HCOOH and CO. Additionally, they form secondary emissions of HCN due to catalytic reactions of formaldehyde and its oxidation intermediates with NH\n                    <jats:sub>3<\/jats:sub>\n                    . With the present components of the exhaust gas aftertreatment system the HCN emissions are not efficiently converted to non\u2010polluting gases. The development of more advanced catalyst formulations with improved oxidation activity is mandatory to solve this novel critical issue.\n                  <\/jats:p>","DOI":"10.1002\/anie.202003670","type":"journal-article","created":{"date-parts":[[2020,5,11]],"date-time":"2020-05-11T05:14:35Z","timestamp":1589174075000},"page":"14423-14428","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":63,"title":["Emission of Toxic HCN During NO\n                    <sub>\n                      <i>x<\/i>\n                    <\/sub>\n                    Removal by Ammonia SCR in the Exhaust of Lean\u2010Burn Natural Gas Engines"],"prefix":"10.1002","volume":"59","author":[{"given":"Deniz","family":"Zengel","sequence":"first","affiliation":[{"name":"Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology  Engesserstr. 20 76131 Karlsruhe Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pirmin","family":"Koch","sequence":"additional","affiliation":[{"name":"Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology  Engesserstr. 20 76131 Karlsruhe Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bentolhoda","family":"Torkashvand","sequence":"additional","affiliation":[{"name":"Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology  Engesserstr. 20 76131 Karlsruhe Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3606-0956","authenticated-orcid":false,"given":"Jan\u2010Dierk","family":"Grunwaldt","sequence":"additional","affiliation":[{"name":"Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology  Engesserstr. 20 76131 Karlsruhe Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8755-9856","authenticated-orcid":false,"given":"Maria","family":"Casapu","sequence":"additional","affiliation":[{"name":"Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology  Engesserstr. 20 76131 Karlsruhe Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9211-7529","authenticated-orcid":false,"given":"Olaf","family":"Deutschmann","sequence":"additional","affiliation":[{"name":"Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology  Engesserstr. 20 76131 Karlsruhe Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,7]]},"reference":[{"key":"e_1_2_2_1_1","unstructured":"\u00a0"},{"key":"e_1_2_2_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.energy.2013.02.027"},{"key":"e_1_2_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.fuproc.2015.09.018"},{"key":"e_1_2_2_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s38313-018-0059-8"},{"key":"e_1_2_2_5_1","unstructured":"\u00a0"},{"key":"e_1_2_2_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/ghg3.3"},{"key":"e_1_2_2_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-019-10996-2"},{"key":"e_1_2_2_8_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-019-42814-6"},{"key":"e_1_2_2_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclepro.2014.05.077"},{"key":"e_1_2_2_10_1","unstructured":"\u00a0"},{"key":"e_1_2_2_11_2","doi-asserted-by":"publisher","DOI":"10.3390\/en11112934"},{"key":"e_1_2_2_12_2","doi-asserted-by":"publisher","DOI":"10.3390\/en12112165"},{"key":"e_1_2_2_13_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1226310"},{"key":"e_1_2_2_14_1","unstructured":"\u00a0"},{"key":"e_1_2_2_15_2","doi-asserted-by":"publisher","DOI":"10.1021\/es071718i"},{"key":"e_1_2_2_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.energy.2012.10.044"},{"key":"e_1_2_2_17_1","unstructured":"\u00a0"},{"key":"e_1_2_2_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.rser.2016.05.069"},{"key":"e_1_2_2_19_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0300-483X(02)00461-4"},{"key":"e_1_2_2_20_1","doi-asserted-by":"publisher","DOI":"10.4236\/epe.2011.34071"},{"key":"e_1_2_2_21_1","unstructured":"\u00a0"},{"key":"e_1_2_2_22_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11244-018-1122-z"},{"key":"e_1_2_2_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.apcatb.2019.118571"},{"key":"e_1_2_2_24_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201202034"},{"key":"e_1_2_2_24_3","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201202034"},{"key":"e_1_2_2_25_1","first-page":"2018","author":"Schedlbauer T.","year":"2018","journal-title":"SAE Tech. 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