Du ChangMing, Xiao MuDan
Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
Sci Rep. 2014 Dec 5;4:7339. doi: 10.1038/srep07339.
A simple microplasma method was used to synthesize cuprous oxide (Cu2O) nanoparticles in NaCl-NaOH-NaNO3 electrolytic system. Microplasma was successfully used as the cathode and copper plate was used as the anode. The Cu2O products are characterized by X-ray powder diffraction (XRD), field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). The results show that the morphology of Cu2O nanocrystals obtained by this technology is mainly dependent on the electrolytic media, stirring, current density and reaction temperature. The uniform and monodisperse sphere Cu2O nanoparticles with the size about 400 ~ 600 nm can be easily obtained in H2O-ethylene glycol mix-solvent (volume ratio 1:1) and appropriate current density with stirring at room temperature. In addition, the possible mechanism has been reported in the article. And the average energy consumed in producing 1 g Cu2O nanoparticles is 180 kJ. For the flexibility and effectiveness of this microplasma technology, it will have broad application prospects in the realm of nanoscience, energy and environment.
一种简单的微等离子体方法被用于在NaCl-NaOH-NaNO3电解体系中合成氧化亚铜（Cu2O）纳米颗粒。微等离子体被成功用作阴极，铜板被用作阳极。通过X射线粉末衍射（XRD）、场发射扫描电子显微镜（FESEM）和透射电子显微镜（TEM）对Cu2O产物进行了表征。结果表明，通过该技术获得的Cu2O纳米晶体的形态主要取决于电解介质、搅拌、电流密度和反应温度。在H2O-乙二醇混合溶剂（体积比1:1）中，在适当的电流密度下，于室温搅拌时，可以轻松获得尺寸约为400~600nm的均匀且单分散的球形Cu2O纳米颗粒。此外，文章中还报道了可能的机理。并且生产1g Cu2O纳米颗粒所消耗的平均能量为180kJ。鉴于这种微等离子体技术的灵活性和有效性，它将在纳米科学、能源和环境领域具有广阔的应用前景。
