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Single-layer or few-layer hexagonal boron nitride (h-BN) is a graphene-like material with important characteristics and broad application prospects. However, so far, the bottleneck of the simple and large-scale preparation of porous h-BN crystal nanosheets (BNNSs) has become a thorny issue that limits its application and performance development. Zhejiang Chen et al. and their collaborators achieved a controlled continuous dissolution-precipitation/crystallization process at high temperatures in the presence of magnesium, and realized the transformation from amorphous h-BN to highly crystalline BNNSs. The experimental process is as follows: first mix the h-BN precursor with magnesium powder, then seal the mixture in a stainless steel tube and treat it at 900°C under a nitrogen atmosphere; after washing to remove the magnesium, crystallized BNNSs are obtained with a yield of 88% ( By weight). The prepared BNNSs have high crystallinity and high porosity, with a surface area of 347 m2 g-1, and good thermal stability. Compared with amorphous h-BN precursors and other noble metal-supported heterogeneous catalysts, the highly crystalline, high-porosity BNNSs have higher catalytic efficiency in the dehydrogenation reaction of dodecahydro-N-ethylcarbazole. Explains the excellent characteristics of its catalytic performance. Boron oxide
Telephone: 15940764666
Landline: 0417-3902111
Website: www.yklbhg.com
Address: No. 517, Xiangyang Chemical Industry Park, Laobian District, Yingkou City, Liaoning Province
Landline: 0417-3902444
Fax: 0417-3902118
Mail box: 758007001@qq.com
Address: No. 517, Xiangyang Chemical Industry Park, Laobian District, Yingkou City, Liaoning Province
