Picone A, Brambilla A
Department of Physics, Politecnico di Milano, Milano 20133, Italy.
J Phys Condens Matter. 2025 Jun 18;37(25). doi: 10.1088/1361-648X/addf28.
Heterostructures consisting of graphene (Gr) and metal-oxides are gaining increasing attention due to their exceptional structural, electronic, and chemical properties. Understanding the characteristics of the Gr/metal-oxide interface is crucial for designing advanced materials with tailored properties for a wide range of technological applications. Gr is often employed as a substrate for the stabilisation of metal-oxides nanoclusters, enhancing their performance in heterogeneous catalysis. Conversely, the integration of atomically flat, ultra-thin metal-oxides with Gr enables precise modulation of its electronic properties, thereby unlocking novel possibilities for advancements in nano-electronics. This review explores the atomic-scale details of interfaces formed between Gr and metal-oxide films, analysed from a surface science perspective. Special attention is directed toward the role of Gr in shaping the morphology of metal-oxides, as well as in addressing the challenges of stabilising a Gr layer on an oxide surface. The electronic coupling between Gr and metal oxides is examined, with a focus on the implications for both catalytic and electronic applications of these heterostructures.
由石墨烯（Gr）和金属氧化物组成的异质结构因其优异的结构、电子和化学性质而受到越来越多的关注。了解Gr/金属氧化物界面的特性对于设计具有定制性能的先进材料以用于广泛的技术应用至关重要。Gr常被用作稳定金属氧化物纳米团簇的基底，提高其在多相催化中的性能。相反，将原子级平整的超薄金属氧化物与Gr集成能够精确调制其电子性质，从而为纳米电子学的进步开启新的可能性。本综述从表面科学的角度探讨了Gr与金属氧化物薄膜之间形成的界面的原子尺度细节。特别关注Gr在塑造金属氧化物形态方面的作用，以及解决在氧化物表面稳定Gr层所面临的挑战。研究了Gr与金属氧化物之间的电子耦合，重点关注这些异质结构在催化和电子应用方面的影响。
