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The surface chemical features of the above catalyst were explored by XPS, N\n                    <jats:sub>2<\/jats:sub>\n                    and CO\n                    <jats:sub>2<\/jats:sub>\n                    adsorption and desorption experiments. The catalyst showed 90% conversion of styrene oxide (SO) with nearly complete selectivity toward styrene carbonate (SC) in 7\u00a0hours under a solvent\u2010free condition at a temperature of 120\u00a0\u00b0C with the aid of co\u2010catalyst tetrabutylammonium bromide (TBAB). Moreover, the catalyst demonstrates versatility with various epoxide substrates, providing valuable insights into the cycloaddition reaction under ambient pressure conditions involving carbon dioxide. The mechanistic details of the catalytic conversion were investigated by the in\u2010situ DRIFT studies and reported here.\n                  <\/jats:p>","DOI":"10.1002\/chem.202500873","type":"journal-article","created":{"date-parts":[[2025,8,8]],"date-time":"2025-08-08T08:20:53Z","timestamp":1754641253000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["A Tunable, Amine\u2010Functionalized Porous Silica Catalyst for CO\n                    <sub>2<\/sub>\n                    \u00a0Transformation into Cyclic Organic Carbonates at Atmospheric Pressure"],"prefix":"10.1002","volume":"31","author":[{"given":"Twinkle","family":"Gorai","sequence":"first","affiliation":[{"name":"Catalysis and Inorganic Chemistry Division CSIR\u2010National Chemical Laboratory  Pune Maharashtra 411008 India"},{"name":"Academy of Scientific and Innovative Research  Kamla Nehru Nagar Ghaziabad Uttar Pradesh 201002 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