纳米技术
化学
二氧化硅
化学计量学
硅
双层
催化作用
密度泛函理论
数码产品
原子单位
电子材料
化学物理
材料科学
计算化学
有机化学
物理化学
膜
复合材料
生物化学
物理
量子力学
作者
Jiuping Zhong,Hans-Joachim Freund
出处
期刊:Chemical Reviews
[American Chemical Society]
日期:2022-06-22
卷期号:122 (13): 11172-11246
被引量:6
标识
DOI:10.1021/acs.chemrev.1c00995
摘要
Two-dimensional (2D) ultrathin silica films have the potential to reach technological importance in electronics and catalysis. Several well-defined 2D-silica structures have been synthesized so far. The silica bilayer represents a 2D material with SiO2 stoichiometry. It consists of precisely two layers of tetrahedral [SiO4] building blocks, corner connected via oxygen bridges, thus forming a self-saturated silicon dioxide sheet with a thickness of ∼0.5 nm. Inspired by recent successful preparations and characterizations of these 2D-silica model systems, scientists now can forge novel concepts for realistic systems, particularly by atomic-scale studies with the most powerful and advanced surface science techniques and density functional theory calculations. This Review provides a solid introduction to these recent developments, breakthroughs, and implications on ultrathin 2D-silica films, including their atomic/electronic structures, chemical modifications, atom/molecule adsorptions, and catalytic reactivity properties, which can help to stimulate further investigations and understandings of these fundamentally important 2D materials.
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