Mesoporous multi-shelled hollow resin nanospheres with ultralow thermal conductivity† † Electronic supplementary information (ESI) available. See https://doi.org/10.1039/d2sc03659b
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ABSTRACT: Hollow nanostructures exhibit enclosed or semi-enclosed spaces inside and the consequent features of restricting molecular motion, which is crucial for intrinsic physicochemical properties. Herein, we developed a new configuration of hollow nanostructures with more than three layers of shells and simultaneously integrated mesopores on every shell. The novel interior configuration expresses the characteristics of periodic interfaces and abundant mesopores. Benefiting from the suppression of gas molecule convection by boundary scattering, the thermal conductivity of mesoporous multi-shelled hollow resin nanospheres reaches 0.013 W m−1 K−1 at 298 K. The designed interior mesostructural configuration of hollow nanostructures provides an ideal platform to clarify the influence of nanostructure design on intrinsic physicochemical properties and propels the development of hollow nanostructures. Mesoporous multi-shelled hollow nanospheres with periodic interfaces have been developed, representing a new kind of hollow nanostructure. Due to the suppression of heat convection, ultralow thermal conductivity can be achieved from 298 K to 473 K.
SUBMITTER: Yuan R
PROVIDER: S-EPMC9600400 | biostudies-literature | 2022 Aug
REPOSITORIES: biostudies-literature
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