scholarly journals Formation Mechanism and Porosity Development in Porous Boron Nitride

2021 ◽  
Author(s):  
Anouk L’Hermitte ◽  
Daniel M. Dawson ◽  
Pilar Ferrer ◽  
Kanak Roy ◽  
Georg Held ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Formation Mechanism ◽  
Porosity Development

scholarly journals Formation Mechanism and Porosity Development in Porous Boron Nitride

2021 ◽  
Author(s):  
Anouk L'Hermitte ◽  
Daniel M. Dawson ◽  
Pilar Ferrer ◽  
Kanak Roy ◽  
Georg Held ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Formation Mechanism ◽  
High Surface ◽  
Scale Up ◽  
High Surface Area ◽  
Inorganic Materials ◽  
Full Potential ◽  
Gaseous Species ◽  
Water Cleaning ◽  
Porosity Development

In the past decade, porous boron nitride (BN) has proven promising as a novel class of inorganic materials in the field of separations and particularly adsorption. Owing to its high surface area and thermal stability, porous BN has been researched for CO2 capture and water cleaning, for instance. However, most research remains at laboratory scale due to a lack of understanding of the formation mechanism of porous BN, which is still largely a ‘black box’ and prevents scale-up. Partial reaction pathways have been unveiled, but they omit critical steps in the formation, including the porosity development, which is key to adsorption. To unlock the potential of porous BN at a larger scale, we have investigated its formation from the perspective of both chemical formation and porosity development. We have characterised reaction intermediates obtained at different temperatures with a range of analytical and spectroscopic tools. Using these analyses, we propose a mechanism that highlights the key stages of BN formation and its porosity, including the intermediates and gaseous species formed in the process. We identified that the formation of non-porous carbon nitride is crucial to form porous BN with release of porogens, such as HCN and CO2. This work paves the way for scaled-up processes to use porous BN to its full potential at industrial level for gas and liquid separations.

Mechanism of Hierarchical Porosity Development in Hexagonal Boron Nitride Nanocrystalline Microstructures for Biomedical and Industrial Applications

2018 ◽  
Vol 1 (9) ◽  
pp. 4491-4501 ◽  
Author(s):  
Jose Humberto Ramirez Leyva ◽  
Gerardo Vitale ◽  
Afif Hethnawi ◽  
Azfar Hassan ◽  
Maria Josefina Perez-Zurita ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Industrial Applications ◽  
Hierarchical Porosity ◽  
Porosity Development

Defect-induced formation mechanism for boron nitride nanosheets-nanotubes hybrid structures

2019 ◽  
Vol 171 ◽  
pp. 16-20 ◽  
Author(s):  
Heng Wang ◽  
Shaowei Zhang ◽  
Yawei Li ◽  
Weimin Wang ◽  
Hao Wang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Formation Mechanism ◽  
Hybrid Structures ◽  
Boron Nitride Nanosheets

Synthesis, structure, and formation mechanism of boron nitride nanotubes

JETP Letters ◽  
1999 ◽  
Vol 69 (2) ◽  
pp. 163-168 ◽  
Author(s):  
T. S. Bartnitskaya ◽  
G. S. Oleinik ◽  
A. V. Pokropivnyi ◽  
V. V. Pokropivnyi
Keyword(s):  
Boron Nitride ◽  
Formation Mechanism ◽  
Boron Nitride Nanotubes

scholarly journals Formation Mechanism of Finished Surface in Ultrahigh-Speed Grinding with cubic Boron Nitride (cBN) Wheels

2006 ◽  
Vol 49 (1) ◽  
pp. 100-105 ◽  
Author(s):  
Yoshio ICHIDA ◽  
Ryunosuke SATO ◽  
Yoshitaka MORIMOTO ◽  
Yoshiteru OHSAWA ◽  
Nabil Ben FREDJ
Keyword(s):  
Boron Nitride ◽  
Formation Mechanism ◽  
Cubic Boron Nitride ◽  
Finished Surface
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