Junhui Yin, Shanshan Pan, Xiang Guo, Youshui Gao, Daoyu Zhu, Qianhao Yang,Junjie Gao?, Changqing Zhang?, Yu Chen?

The original article can be found online at https:// doi. org/ 10. 1007/ s40820- 020- 00547-6 Junhui Yin and Shanshan Pan have contributed equally to this work..

? Junjie Gao, colingjj@163.com; Changqing Zhang, zhangcq@sjtu.edu.cn; Yu Chen, chenyuedu@shu.edu.cn

1 Institute of Microsurgery On Extremities, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital,Shanghai 200233, People’s Republic of China

2 School of Life Sciences, Shanghai University, Shanghai 200444, People’s Republic of China

3 State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China

4 Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital,Shanghai 200233, People’s Republic of China

5 Department of Orthopedics, The Second Affiliated Hospital, The Navy Medical University,Shanghai 200003, People’s Republic of China

The original version of this article unfortunately contain some mistakes in figure. The authors found that the curves in Fig. 1f, g were missing.

The corrected version of Fig. 1 is given below:

Fig. 1 Fabrication and characterization of ultrathin 2D Nb2C MXene NSs. a, b SEM images of Nb2AlC ceramics with corresponding element mapping (Nb, Al and C). c, d SEM images of multilayered Nb2C MXene and the corresponding element mapping (Nb, Al and C). e TEM image of one-layered or few-layered Nb2C MXene NSs. f X-ray photoelectron spectroscopy (XPS) spectra of Nb2AlC bulk and Nb2C NSs. g Raman spectra of Nb2AlC bulk and Nb2C NSs. The scale bar in plane a-c equals 1 μm, and the bar of inset a and c represents 100 nm. The scale bar in plane e is 200 nm. (Color figure online)

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