Preparation of mesoporous nitrogen-doped titania comprising large crystallites with low thermal conductivity.

ABSTRACT: Reducing the thermal conductivity (κ) of mesoporous N-doped titania (TiO₂) is crucial for the development of TiO₂-based materials that exhibit excellent electronic, photochemical, and thermoelectric properties. Mesopores can contribute to the reduction of κ via phonon scattering, and the scattering effect due to the randomness of crystal interfaces should be significantly reduced to clarify the role of mesopores in reducing thermal conductivity. Highly ordered mesoporous N-doped TiO₂ comprising large crystallites was prepared with silica colloidal crystals as a template into which a Ti source was introduced, followed by calcination with urea. N-doped samples comprising large crystallites exhibiting random mesopores were also prepared and used

SUBMITTER: Shimasaki Y 

PROVIDER: S-EPMC9417602 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature