Hui Jian, Yu Jin, Luo Yuxi, Hu Wenhui, Liu Yuzi, Hu Qingyun, Wang Kailin, Li Tianyi, Zhou Xinwei, Huang Jier, Zhang Xiaoyi, Ren Yang, Wang Hong
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States.
ACS Appl Mater Interfaces. 2022 May 25;14(20):23342-23347. doi: 10.1021/acsami.2c01329. Epub 2022 May 12.
Synchrotron X-rays are widely used for material characterizations. However, they can also ionize atoms and molecules to damage and manipulate probed materials. We report here an X-ray-induced growth of copper hydroxide nitrate, Cu(OH)NO, on copper thin films in the ambient atmosphere without solvents and thermal treatment. In situ synchrotron X-ray diffraction measurements showed that the time-dependent growth process of theCu(OH)NO is accompanied by the consumption of Cu metal and can be described by a sigmoidal model. The growth rate was reduced after the initial fast growth period. Scanning electron microscopy (SEM) images show that the isolated islands of Cu(OH)NO nanoplates formed in the beginning, which grew together with new nanoplates formed under continued X-ray irradiation. The result demonstrated that high-flux synchrotron X-rays may provide an unconventional approach to synthesizing and manipulating materials, which will inspire future investigation both experimentally and theoretically.
同步加速器X射线被广泛用于材料表征。然而，它们也能使原子和分子电离，从而损坏和操控被探测的材料。我们在此报告了在无溶剂和热处理的环境大气中，X射线诱导硝酸氢氧化铜（Cu(OH)NO）在铜薄膜上生长的情况。原位同步加速器X射线衍射测量表明，Cu(OH)NO随时间的生长过程伴随着铜金属的消耗，并且可以用一个S形模型来描述。在最初的快速生长阶段之后，生长速率降低。扫描电子显微镜（SEM）图像显示，一开始形成了孤立的Cu(OH)NO纳米片岛，这些岛与在持续X射线照射下形成的新纳米片一起生长。结果表明，高通量同步加速器X射线可能提供一种合成和操控材料的非常规方法，这将激发未来在实验和理论方面的研究。
