{"_id":"33685","doi":"10.1002/admi.202200245","date_created":"2022-10-11T08:17:57Z","type":"journal_article","title":"The Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity","author":[{"last_name":"Weinberger","full_name":"Weinberger, Christian","id":"11848","first_name":"Christian"},{"id":"14757","first_name":"Frederik","full_name":"Zysk, Frederik","last_name":"Zysk"},{"first_name":"Marc","last_name":"Hartmann","full_name":"Hartmann, Marc"},{"last_name":"Kaliannan","full_name":"Kaliannan, Naveen","first_name":"Naveen"},{"full_name":"Keil, Waldemar","last_name":"Keil","first_name":"Waldemar"},{"first_name":"Thomas","id":"49079","full_name":"Kühne, Thomas","last_name":"Kühne"},{"full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","id":"23547","first_name":"Michael"}],"user_id":"23547","abstract":[{"lang":"eng","text":"In the spatial confinement of cylindrical mesopores with diameters of a few nanometers, water molecules experience restrictions in hydrogen bonding. This leads to a different behavior regarding the molecular orientational freedom (‘structure of water') compared to the bulk liquid state. In addition to the pore size, the behavior is also strongly affected by the strength of the pore wall-to-water interactions, that is, the pore wall polarity. In this work, this is studied both experimentally and theoretically. The surface polarity of mesoporous silica (SiO2) is modified by functionalization with trimethylsilyl moieties, resulting in a change from a hydrophilic (pristine) to a hydrophobic pore wall. The mesopore surface is characterized by N2 and H2O sorption experiments. Those results are combined with IR spectroscopy to investigate pore wall-to-water interactions leading to different structures of water in the mesopore. Furthermore, the water's structure is studied theoretically to gain deeper insight into the interfacial interactions. For this purpose, the structure of water is analyzed by pairing densities, coordination, and angular distributions with a novel adaptation of surface-specific sum-frequency generation calculation for pore environments."}],"year":"2022","keyword":["Mechanical Engineering","Mechanics of Materials"],"volume":9,"language":[{"iso":"eng"}],"issue":"20","oa":"1","article_number":"2200245","publication":"Advanced Materials Interfaces","department":[{"_id":"613"},{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"304"}],"publication_status":"published","publisher":"Wiley","intvolume":"         9","date_updated":"2023-03-03T11:33:24Z","citation":{"ieee":"C. Weinberger <i>et al.</i>, “The Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity,” <i>Advanced Materials Interfaces</i>, vol. 9, no. 20, Art. no. 2200245, 2022, doi: <a href=\"https://doi.org/10.1002/admi.202200245\">10.1002/admi.202200245</a>.","bibtex":"@article{Weinberger_Zysk_Hartmann_Kaliannan_Keil_Kühne_Tiemann_2022, title={The Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity}, volume={9}, DOI={<a href=\"https://doi.org/10.1002/admi.202200245\">10.1002/admi.202200245</a>}, number={202200245}, journal={Advanced Materials Interfaces}, publisher={Wiley}, author={Weinberger, Christian and Zysk, Frederik and Hartmann, Marc and Kaliannan, Naveen and Keil, Waldemar and Kühne, Thomas and Tiemann, Michael}, year={2022} }","mla":"Weinberger, Christian, et al. “The Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity.” <i>Advanced Materials Interfaces</i>, vol. 9, no. 20, 2200245, Wiley, 2022, doi:<a href=\"https://doi.org/10.1002/admi.202200245\">10.1002/admi.202200245</a>.","chicago":"Weinberger, Christian, Frederik Zysk, Marc Hartmann, Naveen Kaliannan, Waldemar Keil, Thomas Kühne, and Michael Tiemann. “The Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity.” <i>Advanced Materials Interfaces</i> 9, no. 20 (2022). <a href=\"https://doi.org/10.1002/admi.202200245\">https://doi.org/10.1002/admi.202200245</a>.","ama":"Weinberger C, Zysk F, Hartmann M, et al. The Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity. <i>Advanced Materials Interfaces</i>. 2022;9(20). doi:<a href=\"https://doi.org/10.1002/admi.202200245\">10.1002/admi.202200245</a>","apa":"Weinberger, C., Zysk, F., Hartmann, M., Kaliannan, N., Keil, W., Kühne, T., &#38; Tiemann, M. (2022). The Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity. <i>Advanced Materials Interfaces</i>, <i>9</i>(20), Article 2200245. <a href=\"https://doi.org/10.1002/admi.202200245\">https://doi.org/10.1002/admi.202200245</a>","short":"C. Weinberger, F. Zysk, M. Hartmann, N. Kaliannan, W. Keil, T. Kühne, M. Tiemann, Advanced Materials Interfaces 9 (2022)."},"publication_identifier":{"issn":["2196-7350","2196-7350"]},"quality_controlled":"1","article_type":"original","status":"public","main_file_link":[{"open_access":"1","url":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.202200245"}]}