Boron-rich boron nitride (BN) films prepared by a single spin-coating process of a polymeric precursor

Three-dimensional foam-like hexagonal boron nitride nanomaterials via atmospheric pressure chemical vapor deposition

“…Quantitative analysis of the EDS data to obtain stoichiometry indicated samples to be boron-rich. Upon review of the available literature, it was found that with synthetic h-BN it is not uncommon to observe a boron-rich stoichiometry, especially when polyborazylene is one of the dominant chemical species facilitating h-BN growth [25][26][27]. However, it is also difficult to be confident in the quantitative stoichiometry values obtained due to the known issue of light elements giving off low binding energies (188 eV for boron and 402 eV for nitrogen), thereby making it challenging to distinguish these elements from one another via an energy loss analysis and obtain an accurate determination of the B:N stoichiometric ratio.…”

Macroporous SiCMoSi2ceramics from templated hybrid MoCl5–polymethylsilane

“…• C. 33,34 Thus, it can be concluded that the porous Materials, Nanoscience and Catalysis ceramic obtained exhibits a trimodal pore-size distribution, originating from the template spheres, contact points between the spheres and partially diffused silica. For fuel cells and other catalytic applications, metallic nanoparticles are usually supported on a high-surface-area substrate so that they can work either as an electrode material or as a catalyst.…”

New potential for preparation of performing h-BN coatings via polymer pyrolysis in RTA furnace

“…Examples of h-BN coatings achieved by the PDCs route have been reviewed elsewhere. 15 Among these references, the use of polyborazylene (PBN) as a polymeric precursor is predominant, [16][17][18][19][20][21] probably due to the ease and reproducibility of its synthesis, combined with its relatively high ceramic yield and high purity. In all the reported studies, the liquid-forming process is always followed by classical thermolysis, and the PDCs route in particular usually requires high temperature to convert the dip-coated polymer into a ceramic coating.…”