用于合成氮掺杂的石墨烯类材料的方法已经引起了科学界的极大关注,因为这种材料在诸如燃料电池的电化学装置中的可能应用。超级电容器和电池,以及纳米电子和传感器。本文的目的是回顾这一科学生态位的最新进展。最常见的合成技术是使用含氮或氨的非平衡气态等离子体对沉积的石墨烯或含石墨烯的碳网进行氮化。已经观察到各种化学键,然而,如何确保石墨氮的优先形成仍然是一个挑战,这应该是最有利的。氮浓度取决于处理条件并且通常为很少的。%;然而,值低于1,最高为20at。%已报告。通常,还发现了大量的氧气,然而,其对N掺杂石墨烯的协同影响尚未报道。典型的等离子体处理时间为几分钟。讨论了不同作者报告的结果,并总结了该科学领域的未来需求。还介绍了用X射线光电子能谱和拉曼光谱表征石墨烯样品的某些方面。
Methods for synthesizing nitrogen-doped graphene-like materials have attracted significant attention among the scientific community because of the possible applications of such materials in electrochemical devices such as fuel cells, supercapacitors and batteries, as well as nanoelectronics and sensors. The aim of this paper is to
review recent advances in this scientific niche. The most common synthesis technique is nitridization of as-deposited graphene or graphene-containing carbon mesh using a non-equilibrium gaseous plasma containing nitrogen or ammonia. A variety of chemical bonds have been observed, however, it is still a challenge how to ensure preferential formation of graphitic nitrogen, which is supposed to be the most favorable. The nitrogen concentration depends on the processing conditions and is typically few at.%; however, values below 1 and up to 20 at.% have been reported. Often, huge amounts of oxygen are found as well, however, its synergistic influence on N-doped graphene is not reported. The typical plasma treatment time is several minutes. The results reported by different authors are discussed, and future needs in this scientific field are summarized. Some aspects of the characterization of graphene samples with X-ray photoelectron spectroscopy and Raman spectroscopy are presented as well.