材料科学
氧化物
催化作用
钙钛矿(结构)
纳米材料
纳米技术
氧化还原
过渡金属
化学工程
金属
无机化学
化学
有机化学
冶金
工程类
作者
Kaisi Liu,Hongrun Jin,Liwei Huang,Yongxin Luo,Zehao Zhu,Simin Dai,Xinyan Zhuang,Zidong Wang,Liang Huang,Jun Zhou
出处
期刊:Science Advances
[American Association for the Advancement of Science (AAAS)]
日期:2022-05-20
卷期号:8 (20)
被引量:21
标识
DOI:10.1126/sciadv.abn2030
摘要
Two-dimensional (2D) oxides have unique electrical, optical, magnetic, and catalytic properties, which are promising for a wide range of applications in different fields. However, it is difficult to fabricate most oxides as 2D materials unless they have a layered structure. Here, we present a facile strategy for the synthesis of ultrathin oxide nanosheets using a self-formed sacrificial template of carbon layers by taking advantage of the Maillard reaction and violent redox reaction between glucose and ammonium nitrate. To date, 36 large-area ultrathin oxides (with thickness ranging from ~1.5 to ~4 nm) have been fabricated using this method, including rare-earth oxides, transition metal oxides, III-main group oxides, II-main group oxides, complex perovskite oxides, and high-entropy oxides. In particular, the as-obtained perovskite oxides exhibit great electrocatalytic activity for oxygen evolution reaction in an alkaline solution. This facile, universal, and scalable strategy provides opportunities to study the properties and applications of atomically thin oxide nanomaterials.
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