论文标题

部分可观测时空混沌系统的无模型预测

Direct synthesis and chemical vapor deposition of 2D carbide and nitride MXenes

论文作者

Wang, Di, Zhou, Chenkun, Filatov, Alexander S., Cho, Wooje, Lagunas, Francisco, Wang, Mingzhan, Vaikuntanathan, Suriyanarayanan, Liu, Chong, Klie, Rober F., Talapin, Dmitri V.

论文摘要

二维(2D)过渡金属碳化物和氮化物(MXENES)是一个积极研究各种应用的大型材料,尤其是在储能领域。迄今为止,通常通过蚀刻分层三元化合物,最大相位来合成mxenes。在这里,我们证明了MXENES的可扩展和原子经济合成的直接合成途径,其中包括未从最大相合成的相,金属和金属卤化物与石墨,甲烷或氮的反应。这些直接合成的MXENES显示出极好的能源存储能力,用于锂离子插入。直接合成可实现MXENE地毯和复杂球体样形态的化学蒸气沉积(CVD)。后一种形式类似于内吞作用期间细胞膜的演变。

Two-dimensional (2D) transition metal carbides and nitrides (MXenes) are a large family of materials actively studied for various applications, especially in the field of energy storage. To date, MXenes are commonly synthesized by etching the layered ternary compounds, MAX phases. Here we demonstrate a direct synthetic route for scalable and atom-economic synthesis of MXenes, including phases that have not been synthesized from MAX phases, by the reactions of metals and metal halides with graphite, methane or nitrogen. These directly synthesized MXenes showed excellent energy storage capacity for Li-ion intercalation. The direct synthesis enables chemical vapor deposition (CVD) growth of MXene carpets and complex spherulite-like morphologies. The latter form in a process resembling the evolution of cellular membranes during endocytosis.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源