Lojka Michal, Lochman Boris, Jankovský Ondřej, Jiříčková Adéla, Sofer Zdeněk, Sedmidubský David
Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic.
Materials (Basel). 2019 Jul 25;12(15):2367. doi: 10.3390/ma12152367.
The aim of this paper is to prepare and characterize partially-oxidized graphite oxide and consider if it is possible to affect the level of oxidation of particles by an adjustment of the oxidizing agent. Several samples were prepared, using different amounts of oxidizing agent. The samples were subsequently analyzed. The C/O ratio was evaluated from XPS, EDS, and EA. The amount and type of individual oxygen functionalities were characterized by XPS, Raman spectroscopy, and cyclic voltammetry. The structure was studied by SEM and XRD. Thermal stability was investigated by STA-MS in argon atmosphere. The results can be useful in order to design simple technology for graphite oxide synthesis with required oxygen content.
本文的目的是制备并表征部分氧化的氧化石墨烯，并探讨是否有可能通过调整氧化剂来影响颗粒的氧化程度。使用不同量的氧化剂制备了几个样品。随后对这些样品进行了分析。通过X射线光电子能谱（XPS）、能谱仪（EDS）和元素分析（EA）评估C/O比。通过XPS、拉曼光谱和循环伏安法表征单个氧官能团的数量和类型。通过扫描电子显微镜（SEM）和X射线衍射（XRD）研究结构。在氩气气氛中通过热重-质谱联用仪（STA-MS）研究热稳定性。这些结果对于设计具有所需氧含量的氧化石墨烯合成的简单技术可能是有用的。
