کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1330916 | 978983 | 2011 | 4 صفحه PDF | دانلود رایگان |

Mesoporous BN was prepared at 550 °C for 10 h or so via a simple reaction between NaBH4 and CO(NH2)2. X-ray diffraction demonstrates the formation of t-BN with lattice constants a=2.46 and c=6.67 Å. High-resolution transmission electron microscopy displays a lot of porous films in the product, which possesses a high surface area of 219 m2 g−1 and a pore size primarily around 3.8 nm tested by nitrogen adsorption–desorption method. The mesoporous BN exhibits a strong luminescence emission around 3.41 eV in the cathodoluminescence spectra, a high stability in both morphology and structure, and good oxidation resistance up to 800 °C. The byproducts generated during the reaction are responsible for the formation of the mesoporous BN.
The mesoporous BN with a high specific surface area of 219 m2 g−1 exhibits a strong luminescence emission around 3.41 eV in the CL spectra, high thermal stability in both morphology and structure, and good oxidation resistance up to 800 °C.Figure optionsDownload as PowerPoint slideResearch highlights
► Mesoporous BN was prepared by a simple reaction between NaBH4 and CO(NH2)2 at 550 °C.
► The mesoporous BN possesses a high surface area of 219 m2 g−1.
► The mesoporous BN exhibits a strong luminescence emission around 3.41 eV.
► The mesoporous BN has high stability and good oxidation resistance up to 800 °C.
Journal: Journal of Solid State Chemistry - Volume 184, Issue 4, April 2011, Pages 859–862