Komeily-Nia Zahra, Qu Liang-Ti, Li Jing-Liang
Institute for Frontier Materials Deakin University Geelong Victoria 3217 Australia.
Department of Chemistry Tsinghua University Beijing 100081 P. R. China.
Small Sci. 2020 Dec 18;1(2):2000026. doi: 10.1002/smsc.202000026. eCollection 2021 Feb.
Enhancing the intrinsic reactivity of graphene materials is essential for the development of low-cost materials such as catalysts for various applications. Although an increasing understanding of the intrinsic reactivity of these materials is being achieved, the mechanisms of these materials for catalyzing various reactions have not been fully understood. It is believed that the intrinsic reactivity of pristine graphene originates from its edge and defect sites, and unpaired electrons (radicals) particularly of graphene oxide have also been demonstrated to contribute to the reactivity. Herein, the various edges and defects, and radicals, as well as their influences on the electron structure, reactivity, and applications of graphene-based materials are reviewed and analyzed. Knowledge gaps in advancing the understanding of the structure-property-reactivity correlations of these materials are discussed.
提高石墨烯材料的本征反应活性对于开发用于各种应用的低成本材料（如催化剂）至关重要。尽管人们对这些材料的本征反应活性的理解日益加深，但这些材料催化各种反应的机制尚未完全明确。据信，原始石墨烯的本征反应活性源于其边缘和缺陷位点，并且已证明特别是氧化石墨烯的未成对电子（自由基）也有助于反应活性。在此，对石墨烯基材料的各种边缘、缺陷和自由基，以及它们对电子结构、反应活性和应用的影响进行了综述和分析。讨论了在推进对这些材料的结构-性质-反应活性相关性理解方面的知识空白。
