Chesnokov Vladimir V, Prosvirin Igor P, Gerasimov Evgeny Yu, Chichkan Aleksandra S
Boreskov Institute of Catalysis SB RAS, Prospekt Akademika Lavrentieva 5, Novosibirsk 630090, Russia.
Materials (Basel). 2023 Feb 28;16(5):1986. doi: 10.3390/ma16051986.
A new method for the synthesis of boron-doped carbon nanomaterial (B-carbon nanomaterial) has been developed. First, graphene was synthesized using the template method. Magnesium oxide was used as the template that was dissolved with hydrochloric acid after the graphene deposition on its surface. The specific surface area of the synthesized graphene was equal to 1300 m/g. The suggested method includes the graphene synthesis via the template method, followed by the deposition of an additional graphene layer doped with boron in an autoclave at 650 °C, using a mixture of phenylboronic acid, acetone, and ethanol. After this carbonization procedure, the mass of the graphene sample increased by 70%. The properties of B-carbon nanomaterial were studied using X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HRTEM), Raman spectroscopy, and adsorption-desorption techniques. The deposition of an additional graphene layer doped with boron led to an increase of the graphene layer thickness from 2-4 to 3-8 monolayers, and a decrease of the specific surface area from 1300 to 800 m/g. The boron concentration in B-carbon nanomaterial determined by different physical methods was about 4 wt.%.
一种合成硼掺杂碳纳米材料（B-碳纳米材料）的新方法已被开发出来。首先，采用模板法合成了石墨烯。氧化镁用作模板，在石墨烯沉积于其表面后，用盐酸将其溶解。合成的石墨烯的比表面积为1300 m/g。所提出的方法包括通过模板法合成石墨烯，随后在高压釜中于650℃下，使用苯硼酸、丙酮和乙醇的混合物沉积一层额外的硼掺杂石墨烯层。经过该碳化过程后，石墨烯样品的质量增加了70%。使用X射线光电子能谱（XPS）、高分辨率透射电子显微镜（HRTEM）、拉曼光谱和吸附-脱附技术研究了B-碳纳米材料的性能。沉积一层额外的硼掺杂石墨烯层导致石墨烯层厚度从2至4个单层增加到3至8个单层，比表面积从1300降至800 m/g。通过不同物理方法测定的B-碳纳米材料中的硼浓度约为4 wt.%。
