Upon flowing hot steam over hexagonal boron nitride (h‐BN) bulk powder, efficient exfoliation and hydroxylation of BN occur simultaneously. Through effective hydrogen bonding with water and ...N‐isopropylacrylamide, edge‐hydroxylated BN nanosheets dramatically improve the dimensional change and dye release of this temperature‐sensitive hydrogel and thereby enhance its efficacy in bionic, soft robotic, and drug‐delivery applications.
In this study, hexagonal boron nitride nanosheets (h-BNNS) have been grown on polycrystalline silver substrates via chemical vapor deposition (CVD) using ammonia borane as a precursor. The h-BNNS are ...of few-atomic-layer thickness and form continuous coverage over the whole Ag substrate. The atomically thin coating poses negligible interference to the reflectivity in the UV–visible range. The nanosheet coating also proves very effective in protecting Ag foil chemically. In contrast to bare Ag foil, the coated foil displayed only minor decolorization under high concentration of H2S. The study indicates that h-BNNS can be a promising protective coating for Ag based items such as jewelry or mirrors used in astronomical telescopes.
Upon flowing hot‐water steam over hexagonal boron nitride (h‐BN) bulk powder, efficient exfoliation and hydroxylation of the h‐BN occur simultaneously. The edge‐hydroxylation enables excellent ...dispersion of the nanosheets in water and also helps to maintain their high thermal conductivity along the h‐BN plane. Used as an additive, the thermal response of a poly(N‐isopropylacrylamide) (PNIPAM) hydrogel is dramatically improved, featuring faster shrinkage and dye release. This is described by Z. Huang and co‐workers on page 7196.
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