Gorenskaia Elena N, Kholkhoev Bato Ch, Makotchenko Viktor G, Ivanova Mariia N, Fedorov Vladimir E, Burdukovskii Vitaliy F
Baikal Institute of Nature Management Siberian Branch of the Russian Academy of Sciences, Ulan-Ude 670047, Russian Federation.
Nikolaev Institute of Inorganic Chemistry Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russian Federation.
J Nanosci Nanotechnol. 2020 May 1;20(5):3258-3264. doi: 10.1166/jnn.2020.17388.
N-doped graphene based on graphene oxide and 3,3',4,4'-tetraaminodiphenyl oxide (TADPO) was obtained using a one-step hydrothermal process. The resulting materials were fully characterized using elemental analysis, infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron micrographs, and transmission electron microscopy. The findings reveal that benzimidazole rings were formed during the reaction, and the mass content of nitrogen in the obtained material varied from 12.3% to 14.7%, depending on the initial concentration of TADPO. Owing to the redox activity of benzimidazole rings, the new N-doped graphene materials demonstrated a high specific capacitance, reaching 340 F g at 0.1 A g, which was significantly higher than that of the sample of reduced graphene oxide obtained under similar conditions without the use of TADPO (169 F g at 0.1 A g). The resulting material also exhibited good cyclic stability after 5000 cycles.
基于氧化石墨烯和3,3',4,4'-四氨基二苯醚（TADPO）通过一步水热法制备了氮掺杂石墨烯。使用元素分析、红外光谱、拉曼光谱、热重分析、X射线衍射、扫描电子显微镜和透射电子显微镜对所得材料进行了全面表征。研究结果表明，反应过程中形成了苯并咪唑环，所得材料中氮的质量含量在12.3%至14.7%之间变化，这取决于TADPO的初始浓度。由于苯并咪唑环的氧化还原活性，新型氮掺杂石墨烯材料表现出高比电容，在0.1 A g时达到340 F g，显著高于在类似条件下不使用TADPO制备的还原氧化石墨烯样品（在0.1 A g时为169 F g）。所得材料在5000次循环后也表现出良好的循环稳定性。
