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Here, we report that in steamed ZSM\u20105 zeolites, B\n                    <jats:sub>2<\/jats:sub>\n                    sites from partial hydrolysis of framework aluminum cooperate with neighboring classical BAS (B\n                    <jats:sub>1<\/jats:sub>\n                    ) to establish a proximate acid\u2010site microenvironment that substantially enhances both alkane adsorption and activation. Combining solid\u2010state NMR, in situ FTIR spectroscopy with two\u2010dimensional correlation analysis, and density functional theory calculations, we demonstrate that the neighboring B\n                    <jats:sub>1<\/jats:sub>\n                    \/B\n                    <jats:sub>2<\/jats:sub>\n                    sites exhibit a stronger intrinsic affinity for propane than isolated B\n                    <jats:sub>1<\/jats:sub>\n                    sites, accelerating its accumulation within the pores, which is attributable to the locally optimized van der Waals interactions tuned by the Al\u2500OH of B\n                    <jats:sub>2<\/jats:sub>\n                    . The resulting cooperative acid sites synergistically entrap alkane molecules and facilitate C\u2500H bond activation, boosting propane conversion from 27.2% to 37.5%. Our findings reveal a mechanism for alkane activation that is driven by proximate acid\u2010site cooperativity rather than conventional acid strength of isolated BAS, opening an avenue for designing efficient zeolite catalysts via microenvironment engineering.\n                  <\/jats:p>","DOI":"10.1002\/anie.1613184","type":"journal-article","created":{"date-parts":[[2026,4,18]],"date-time":"2026-04-18T11:03:01Z","timestamp":1776510181000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Spatially Proximate Acid Sites in Zeolites Synergistically Boost Alkane Activation"],"prefix":"10.1002","volume":"65","author":[{"given":"Youdong","family":"Xing","sequence":"first","affiliation":[{"name":"Interdisciplinary Institute of NMR and Molecular Sciences Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology  Wuhan P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yao","family":"Xiao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Magnetic Resonance Spectroscopy and Imaging National Center for Magnetic Resonance in Wuhan Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences  Wuhan P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9224-3111","authenticated-orcid":false,"given":"Xianfeng","family":"Yi","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Magnetic Resonance Spectroscopy and Imaging National Center for Magnetic Resonance in Wuhan Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences  Wuhan P.R. 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenzheng","family":"Liao","sequence":"additional","affiliation":[{"name":"Interdisciplinary Institute of NMR and Molecular Sciences Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology  Wuhan P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7115-6510","authenticated-orcid":false,"given":"Anmin","family":"Zheng","sequence":"additional","affiliation":[{"name":"Interdisciplinary Institute of NMR and Molecular Sciences Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology  Wuhan P.R. 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