Ghidiu M, Naguib M, Shi C, Mashtalir O, Pan L M, Zhang B, Yang J, Gogotsi Y, Billinge S J L, Barsoum M W
Department of Materials Science and Engineering and A. J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, USA.
Chem Commun (Camb). 2014 Aug 28;50(67):9517-20. doi: 10.1039/c4cc03366c.
We report on the synthesis of a phase-pure, 2-dimensional transition metal carbide Nb4C3, produced by immersing Nb4AlC3 powders in hydrofluoric acid. The structure of this, only second MXene with formula M4X3, was investigated with pair distribution function analysis. The resistivity of a cold-pressed disc was 0.0046 Ω m, rendering this MXene one of the most conductive to date.
我们报道了通过将Nb4AlC3粉末浸入氢氟酸中制备出的一种纯相二维过渡金属碳化物Nb4C3。通过对分布函数分析研究了这种（仅有的第二个分子式为M4X3的MXene）结构。冷压圆盘的电阻率为0.0046Ω·m，使这种MXene成为迄今为止导电性最强的材料之一。
