材料科学
过渡金属
微波食品加热
表面等离子共振
氮化物
拉曼光谱
多孔性
拉曼散射
光热治疗
化学工程
金属
光电子学
纳米技术
纳米颗粒
化学
光学
冶金
复合材料
有机化学
催化作用
工程类
物理
量子力学
图层(电子)
作者
Damin Liu,Xin Song,Wencai Yi,Yahui Li,Qinghong Kong,Hua Bai,Mingqiang Zou,Guangcheng Xi
出处
期刊:Nano Letters
[American Chemical Society]
日期:2021-09-03
卷期号:21 (18): 7724-7731
被引量:9
标识
DOI:10.1021/acs.nanolett.1c02541
摘要
The synthesis of metallic transition metal nitrides (TMNs) has traditionally been performed under harsh conditions, which makes it difficult to prepare TMNs with high surface area and porosity due to the grain sintering. Herein, we report a general and rapid (30 s) microwave synthesis method for preparing TMNs with high specific surface area (122.6–141.7 m2 g–1) and porosity (0.29–0.34 cm3 g–1). Novel single-crystal porous WN, Mo2N, and V2N are first prepared by this method, which exhibits strong surface plasmon resonance, photothermal conversion, and surface-enhanced Raman scattering effects. Different from the conventional low-temperature microwave absorbing media such as water and polymers, as new concept absorbing media, hydrated metal oxides and metallic metal oxides are found to have a remarkable high-temperature microwave heating effect and play key roles in the formation of TMNs. The current research results provide a new-concept microwave method for preparing high lattice energy compounds with high specific surface.
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