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Formation and Pore Structure of Boron Nitride …

José Antiono Perdigon-Melon, Aline Auroux, David Cornu, Philippe Miele, Bérangère Toury, Bernard Bonnetot, Porous boron nitride supports obtained from molecular precursors., Journal of Organometallic Chemistry, 10.1016/S0022-328X(02)01589-9, 657, 1-2, (98-106), (2002).

Boron nitride nanoribbon aerogels capable of …

2020-5-31 · The research shows that the boron nitride aerogel is made up of ultra-thin (~3.2 nm), large aspect ratio (hundreds of), and porous banded nanostructures, which are intertwined and lapped, showing ultra light (~15 mg cm-3), thermal insulation (~0.035 W/mK), high specific surface area (~920 M2 g-1) and excellent mechanical properties.

Boron nitride nanoribbon aerogels capable of …

Figure 7 from Ultralight boron nitride aerogels via ...

2020-11-25 · Figure 7. Ultralight BN aerogels with a high specific surface area. (a) Photograph for a BN aerogel of 1.8 cm3 on human hair with a mass density of 0.6 mg cm3 and a high BET specific surface area of 1051 m2 g1. (b) The N2 adsorption/desorption isotherms of the BN aerogel at 77 K. (c) Pore size distribution of the BN aerogel given by the BJH method including peaks at 12.1 nm and 23.1 nm.

Crystalline boron nitride aerogels (Patent) | DOE Patents

2 days · This disclosure provides methods and materials related to boron nitride aerogels. For example, one aspect relates to a method for making an aerogel comprising boron nitride, comprising: (a) providing boron oxide and an aerogel comprising carbon; (b) heating the boron oxide to melt the boron oxide and heating the aerogel; (c) mixing a nitrogen-containing gas with boron oxide vapor from molten ...

Boron Nitride - Precision Ceramics USA

2020-12-26 · Boron Nitride is an advanced synthetic ceramic material available in solid and powder form. Its unique properties – from high heat capacity and outstanding thermal conductivity to easy machinability, lubricity, low dielectric constant and superior dielectric strength – make boron nitride a truly outstanding material.

(PDF) Boron Nitride Aerogels Consisting of Varied ...

Boron Nitride Aerogels Consisting of Varied Superstructures. January 2020; DOI: 10.1039/C9NA00702D

Boron Nitride | BN Material Properties

2016-7-29 · Boron nitride is a white solid material in the as produced hot pressed form. It is a low porosity solid. It is easily machined into complex shapes using standard carbide tooling. The material is anisotropic in its electrical and mechanical properties due to the platy hexagonal crystals and their orientation during the hot press consolidation.

Boron nitride colloidal solutions, ultralight aerogels …

Zeng X. et al. Artificial nacre-like papers based on noncovalent functionalized boron nitride nanosheets with excellent mechanical and thermally conductive properties. Nanoscale 7, 6774–6781 (2015). [Google Scholar] Zeng X., Ye L., Sun R., Xu J. & Wong C. Observation of viscoelasticity in boron nitride nanosheet aerogel. Phys. Chem. Chem.

A topologically substituted boron nitride hybrid …

A topologically mediated synthesis of porous boron nitride aerogel has been experimentally and theoretically investigated for carbon dioxide (CO2) uptake. Replacement of the carbon atoms in a precursor aerogel of graphene oxide and carbon nanotubes was achieved using an elemental substitution reaction, to obtain a boron and nitrogen framework.

Boron nitride - WikiMili, The Best Wikipedia Reader

2020-11-23 · Boron nitride aerogel is an aerogel made of highly porous BN. It typically consists of a mixture of deformed BN nanotubes and nanosheets . It can have a density as low as 0.6 mg/cm 3 and a specific surface area as high as 1050 m 2 /g, and therefore has potential applications as an absorbent , catalyst support and gas storage medium.

Platinum Nanoparticle Loading of Boron Nitride …

The boron nitride aerogel exhibits thermal stability up to 900°C and supports disperse platinum nanoparticles, with no sintering observed after 24 h of high-temperature testing. The high thermal conductivity and low density of the boron nitride aerogel result in an order of magnitude faster response and recovery times ( < 2 s) than reported on ...

Highly Compressive Boron Nitride Nanotube Aerogels ...

2019-7-23 · Highly Compressive Boron Nitride Nanotube Aerogels Reinforced with Reduced Graphene Oxide. ... The reinforcement effect of rGO and 3D honeycomb-like framework offer the BNNTs/rGO aerogel with a high compression resilience. The BNNTs/rGO aerogels were then infiltrated with polyethylene glycol to prepare a kind of phase change materials.

Ultralight boron nitride aerogels via template-assisted ...

Boron nitride (BN) aerogels are porous materials with a continuous three-dimensional network structure. They are attracting increasing attention for a wide range of applications. Here, we report the template-assisted synthesis of BN aerogels by catalyst-free, low-pressure chemical vapor deposition on graphene-carbon nanotube composite aerogels using borazine as the B and N sources with a ...

Ultralight boron nitride aerogels via template-assisted ...

2015-5-15 · Boron nitride (BN), an analogue of carbon, with high temperature oxidation resistance 1,2, low dielectric constant 3,4,5, wide bandgap 6 and optical absorption and photoluminescence at deep ultraviolet (DUV) area 7,8, is leading to a wide variety of applications as structural, thermal, electronic and optical materials.BN aerogels 9,10 are special BN-based porous materials with continuous three ...

Boron nitride aerogel - Wikipedia

2020-11-8 · Boron nitride aerogel is an aerogel made of highly porous boron nitride (BN). It typically consists of a mixture of deformed boron nitride nanotubes and nanosheets.It can have a density as low as 0.6 mg/cm 3 and a specific surface area as high as 1050 m 2 /g, and therefore has potential applications as an absorbent, catalyst support and gas storage medium.BN aerogels are highly hydrophobic and ...

Boron nitride aerogel - Wikipedia

Boron nitride aerogels consisting of varied ...

The integration of nanostructures into aerogels not only allows the combination of multidimensional features but also implies the possibility of unexpected properties. With great potential in many fields, boron nitride (BN) nanostructures have garnered growing attention and their existence in the aerogel state holds even more promise.

Boron Nitride Aerogels with Super‐Flexibility Ranging …

However, the required flexibility is yet to be satisfied, especially under extreme conditions. Herein, a boron nitride nanoribbon aerogel with excellent temperature‐invariant super‐flexibility is developed by high temperature amination of a melamine diborate precursor formed by hydrogen bonding assembly.