{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T13:36:33Z","timestamp":1776692193281,"version":"3.51.2"},"reference-count":55,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,11,30]],"date-time":"2022-11-30T00:00:00Z","timestamp":1669766400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Chem."],"abstract":"<jats:p>This work prepared an ISAPO-34\/SAPO-18 intergrown zeolite using phosphate organoamine as the structure guiding agent. Physical-chemical characterizations by XRD, SEM, TG, and BET showed that the SAPO-34\/SAPO-18 presents a cross-stacked cubic block-like microscopic morphology, with characteristic diffusive diffraction peaks at 2\u03b8 = 16\u201318\u00b0 and 30\u201333\u00b0 and a specific surface area of 557\u00a0m<jats:sup>2<\/jats:sup>\u00a0g<jats:sup>\u22121<\/jats:sup>. The series of copper-based catalysts prepared from SAPO-34\/SAPO-18 showed a shift of the active temperature window to a lower temperature with increasing copper content. Moreover, the Br\u00f8nsted acid site decreased significantly due to copper ion exchange and zeolite structure framework damage. Among them, the 1.2\u00a0wt% sample showed the widest active temperature window, with a T<jats:sub>90<\/jats:sub> range of 175\u2013435\u00b0C. After low-temperature hydrothermal aging treatment, the zeolite structure was eroded and the catalyst activity deteriorated significantly.<\/jats:p>","DOI":"10.3389\/fchem.2022.1069824","type":"journal-article","created":{"date-parts":[[2022,11,30]],"date-time":"2022-11-30T07:10:06Z","timestamp":1669792206000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["The investigation of the NH3-SCR performance of a copper-based AEI-CHA intergrown zeolite catalyst"],"prefix":"10.3389","volume":"10","author":[{"given":"Hongling","family":"Ye","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kai","family":"Ren","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pengfei","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lin","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2022,11,30]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"120928","DOI":"10.1016\/j.apcatb.2021.120928","article-title":"NH3-SCR catalysts for heavy-duty diesel vehicles: Preparation of CHA-type zeolites with low-cost templates","volume":"303","author":"Bello","year":"2022","journal-title":"Appl. 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