Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/244096
Type: Artigo
Title: Synthesis of low-density, carbon-doped, porous hexagonal boron nitride solids
Author: Gautam, C.
Tiwary, C. S.
Jose, S.
Brunetto, G.
Ozden, S.
Vinod, S.
Raghavan, P.
Biradar, S.
Galvao, D. S.
Ajayan, P. M.
Abstract: Here, we report the scalable synthesis and characterization of low-density, porous, three-dimensional (3D) solids consisting of two-dimensional (2D) hexagonal boron nitride (h-BN) sheets. The structures are synthesized using bottom-up, low-temperature (similar to 300 degrees C), solid-state reaction of melamine and boric acid giving rise to porous and mechanically stable interconnected h-BN layers. A layered 3D structure forms due to the formation of h-BN, and significant improvements in the mechanical properties were observed over a range of temperatures, compared to graphene oxide or reduced graphene oxide foams. A theoretical model based on Density Functional Theory (DFT) is proposed for the formation of h-BN architectures. The material shows excellent, recyclable absorption capacity for oils and organic solvents.
Here, we report the scalable synthesis and characterization of low-density, porous, three-dimensional (3D) solids consisting of two-dimensional (2D) hexagonal boron nitride (h-BN) sheets. The structures are synthesized using bottom-up, low-temperature (similar to 300 degrees C), solid-state reaction of melamine and boric acid giving rise to porous and mechanically stable interconnected h-BN layers. A layered 3D structure forms due to the formation of h-BN, and significant improvements in the mechanical properties were observed over a range of temperatures, compared to graphene oxide or reduced graphene oxide foams. A theoretical model based on Density Functional Theory (DFT) is proposed for the formation of h-BN architectures. The material shows excellent, recyclable absorption capacity for oils and organic solvents.
Subject: Nitreto de boro hexagonal, Microscopia eletrônica, Nanotubos, Teoria do funcional de densidade, Simulação
Country: Estados Unidos
Editor: American Chemical Society
Citation: Synthesis Of Low-density, Carbon-doped, Porous Hexagonal Boron Nitride Solids. Amer Chemical Soc, v. 9, p. 12088-12095 DEC-2015.
Rights: fechado
Identifier DOI: 10.1021/acsnano.5b05847
Address: https://pubs.acs.org/doi/10.1021/acsnano.5b05847
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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