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|Title:||Mesoporous titanium oxynitride monoliths from block copolymer-directed self-assembly of metal-urea additives||Authors:||Li, Yun
Tan, Wei Xin
Sasangka, Wardhana A.
Manalastas, William, Jr.
Tan, Kwan Wee
|Issue Date:||2020||Source:||Li, Y., Horia, R., Tan, W. X., Larbaram, N., Sasangka, W. A., Manalastas, W., Jr., ... Tan, K. W. (2020). Mesoporous titanium oxynitride monoliths from block copolymer-directed self-assembly of metal-urea additives. Langmuir, 36(36), 10803-10810. doi:10.1021/acs.langmuir.0c01729||Journal:||Langmuir||Abstract:||This report describes a simple one-pot soft-templating and ammonolysis-free approach to synthesize mesoporous crystalline titanium oxynitride by combining block copolymer-directed self-assembly with metal sol and urea precursors. The Pluronic F127 triblock copolymer was employed to structure-direct titanium-oxo-acetate sol nanoparticles and urea-formaldehyde into ordered hybrid mesostructured monoliths. The hybrid composites were directly converted into mesoporous crystalline titanium oxynitride and retained macroscale monolithic integrity up to 800 °C under nitrogen. Notably, the urea-formaldehyde additive provided nitrogen and rigid support to the inorganic mesostructure during crystallization. The resultant mesoporous titanium oxynitride exhibited good electrochemical catalytic activity toward hydrogen evolution reaction in 1 M KOH aqueous medium under applied bias. Our results suggest an inexpensive and safe pathway to generate ordered mesoporous crystalline metal oxynitride structures suitable for catalyst and energy-storage applications.||URI:||https://hdl.handle.net/10356/144044||ISSN:||1520-5827||DOI:||10.1021/acs.langmuir.0c01729||Rights:||This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.langmuir.0c01729||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||MSE Journal Articles|
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