Ren Yinan, Tian Zhihua, Zhang Yan, Wu Fushuo, Xie Hao, Zhang Qianqian, Zhang Peigen, Sun Zhengming
Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China.
Liyang Zichen New Material Technology Co., Ltd., Changzhou 213000, China.
Materials (Basel). 2023 May 9;16(10):3610. doi: 10.3390/ma16103610.
ZnO whiskers have many applications, such as in medical and photocatalysis fields. In this study, an unconventional preparation approach is reported, realizing the in-situ growth of ZnO whiskers on TiZnC. The weak bonding between the layer of TiC-octahedron and the Zn-atom layers leads to the easy extraction of Zn atoms from TiZnC lattice points, resulting in the formation of ZnO whiskers on the TiZnC surface. This is the first time that ZnO whiskers have been found to grow in-situ on TiZnC substrate. Further, this phenomenon is amplified when the size of the TiZnC grains is mechanically reduced by ball-milling, which bodes a promising route to prepare ZnO in-situ on a large scale. Additionally, this finding can also help us better understand the stability of TiZnC and the whiskering mechanism of MAX phases.
氧化锌晶须有许多应用，比如在医学和光催化领域。在本研究中，报道了一种非常规的制备方法，实现了氧化锌晶须在TiZnC上的原位生长。TiC八面体层与锌原子层之间的弱键合导致锌原子易于从TiZnC晶格点中提取出来，从而在TiZnC表面形成氧化锌晶须。这是首次发现氧化锌晶须在TiZnC衬底上原位生长。此外，当通过球磨机械减小TiZnC晶粒尺寸时，这种现象会被放大，这预示着一种大规模原位制备氧化锌的有前景的途径。此外，这一发现还能帮助我们更好地理解TiZnC的稳定性以及MAX相的晶须生长机制。
