{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T05:04:44Z","timestamp":1790053484741,"version":"4.0.1"},"reference-count":44,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2016YFB0301603"],"award-info":[{"award-number":["2016YFB0301603"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21802136"],"award-info":[{"award-number":["21802136"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry A European J"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Precise control of pore apertures remains a central challenge in the synthesis and application of porous materials. For titanium\u2013silica oxides, this control is especially difficult because titanium alkoxides hydrolyze and condense faster than silicon alkoxides, compromising the homogeneous distribution of Ti species under conventional sol\u2013gel conditions. Here we show that Ti\u2010diol\u2010Si polymers provide a direct route to pore\u2010aperture control in porous titanium\u2013silica oxides, allowing pore structures to be systematically varied from the microporous to mesoporous regime. The polymers were prepared by transesterification of titanium and silicon alkoxides with diols of different sizes and flexibilities, from 1,3\u2010propanediol (PDO) to polyethylene glycol 400 (PEG400). The diol segments act as reactive linkers and removable molecular spacers, translating diol structure into pore architecture after calcination. The resulting oxides retain dispersed Ti\u2500O\u2500Si environments and show surface areas up to 1053\u00a0m\n                    <jats:sup>2<\/jats:sup>\n                    \u00a0g\n                    <jats:sup>\u22121<\/jats:sup>\n                    , with systematically varied pore and external surface areas. In cyclohexene epoxidation with tert\u2010butyl hydroperoxide (TBHP) in acetonitrile, the PEG400\u2010derived oxide gives a turnover number of 487.6% and 97.9% selectivity to cyclohexene oxide. This work establishes a diol\u2010polymer route to pore\u2010aperture control in Ti\u2500Si mixed oxides.\n                  <\/jats:p>","DOI":"10.1002\/chem.71714","type":"journal-article","created":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T04:29:52Z","timestamp":1790051392000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Diol\u2010Directed Pore Aperture Control in Polymer\u2010Derived Titanium\u2013Silica Oxides Enables Selective Cyclohexene Epoxidation"],"prefix":"10.1002","author":[{"given":"Xun","family":"Wu","sequence":"first","affiliation":[{"name":"National Engineering Research Center of Lower\u2010Carbon Catalysis Technology, Dalian Institute of Chemical Physics Chinese Academy of Sciences  Dalian Liaoning China"},{"name":"University of Chinese Academy of Sciences Chinese Academy of Sciences  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5932-2790","authenticated-orcid":false,"given":"Jiacheng","family":"Xing","sequence":"additional","affiliation":[{"name":"National Engineering Research Center of Lower\u2010Carbon Catalysis Technology, Dalian Institute of Chemical Physics Chinese Academy of Sciences  Dalian Liaoning China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5165-5803","authenticated-orcid":false,"given":"Yunpeng","family":"Xu","sequence":"additional","affiliation":[{"name":"National Engineering Research Center of Lower\u2010Carbon Catalysis Technology, Dalian Institute of Chemical Physics Chinese Academy of Sciences  Dalian Liaoning China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhongmin","family":"Liu","sequence":"additional","affiliation":[{"name":"National Engineering Research Center of Lower\u2010Carbon Catalysis Technology, Dalian Institute of Chemical Physics Chinese Academy of Sciences  Dalian Liaoning 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