Division of Nanomaterials and Nanochemistry, Hefei National Laboratory for Physical Science at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
Nanoscale. 2013 Jun 21;5(12):5241-6. doi: 10.1039/c3nr01178j.
We first demonstrate the rational design and fabrication of novel atomically thick Co3O4 nanosheets (ATCNs) with a specific facet exposed by topochemical transformation from layered intermediate precursors to optimize energy storage. The eminently enhanced lithium storage performance can be attributed not only to the synergistic advantages of inorganic graphene analogues but also the increase of Co(2+) atoms and charge redistribution for ATCNs, which were first revealed by means of synchrotron radiation X-ray absorption near-edge spectroscopy. This work opens the window for the preparation of non-layered atomically thick nanosheets, which will significantly enrich the species of inorganic graphene analogues and optimize energy storage by reasonable materials design and fabrication.
我们首先通过从层状中间前驱体到优化储能的拓扑化学转化来展示具有暴露特定面的新型原子层厚 Co3O4 纳米片（ATCNs）的合理设计和制造。卓越的锂存储性能不仅归因于无机类石墨烯类似物的协同优势，还归因于 ATCNs 中 Co(2+)原子的增加和电荷重新分布，这首先通过同步辐射 X 射线吸收近边光谱法揭示。这项工作为制备非层状原子层厚纳米片开辟了窗口，这将通过合理的材料设计和制造显著丰富无机类石墨烯类似物的种类并优化储能。
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