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Carbon encapsulated metal oxide nanocomposite, method for its preparation and its use in Li-ion batteries
Carbon encapsulated metal oxide nanocomposite, method for its preparation and its use in Li-ion batteries
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机译:碳包封的金属氧化物纳米复合材料,其制备方法及其在锂离子电池中的应用
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摘要
The present invention provides a new nanocomposite containing carbon-encapsulated transition metal oxide nanoparticles with a core-shell structure, wherein the transition metal oxide core has a diameter from 5 nm to 50 nm which is covered by a graphitic coating of a thickness from 1 nm to 5 nm. The nanocomposite is promising for its use as anode material in lithium ion batteries. This nanocomposite is particularly suitable when the transition metal oxide is Fe 3 O 4 . Due to its magnetic properties, further applications such as therapeutical uses and/or uses as ferrofluid are evident. The carbon-encapsulated transition metal oxide nanocomposite can be synthesized by a simple one step pyrolysis of an organic transition metal compound in the absence of solvents or surfactants.
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机译:本发明提供了一种新的纳米复合材料,其包含具有核-壳结构的碳包封的过渡金属氧化物纳米颗粒,其中所述过渡金属氧化物核的直径为5nm至50nm,其被厚度为1nm的石墨涂层覆盖。至5nm。纳米复合材料有望用作锂离子电池的负极材料。当过渡金属氧化物是Fe 3 O 4时,该纳米复合材料特别合适。由于其磁性能,其他应用例如治疗用途和/或作为铁磁流体的用途是显而易见的。可以通过在不存在溶剂或表面活性剂的情况下对有机过渡金属化合物进行简单的一步热解来合成碳包封的过渡金属氧化物纳米复合物。
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