铈
纳米晶材料
纳米晶
原位
水解
材料科学
无机化学
化学工程
核化学
化学
纳米技术
有机化学
工程类
作者
Atsushi Ikeda‐Ohno,Christoph Hennig,Stephan Weiß,Tsuyoshi Yaita,Gert Bernhard
标识
DOI:10.1002/chem.201204101
摘要
Despite the rapid developments in recent nanocrystal research and their expanding applications, the evolution mechanism of nanocrystals remains veiled for the most part due to the lack of appropriate analytical techniques. Here we demonstrate one promising multi-spectroscopic approach for the in situ investigation of nanocrystal evolution. That is, the formation of nanocrystalline cerium dioxide (NC-CeO2) has been probed by dynamic light scattering (DLS), X-ray absorption spectroscopy (XAS) and high-energy X-ray scattering (HEXS). The obtained results indicate that the fine colloidal particles of NC-CeO2 are formed in an acidic aqueous solution simply through the hydrolysis of the initial precursor of small oligomer Ce(IV) species. This information on how NC-CeO2 evolves is fundamental to simplifying and alleviating the synthetic strategy for NC-CeO2 production.
科研通智能强力驱动
Strongly Powered by AbleSci AI