The authors wish to make a change to the published paper [1]. In the original manuscript, Figure 7a,b have been published in the previous work [2]. The corrected Figure 7 is presented below.
Figure 7.
SEM images of fracture surfaces cryogenically broken after immersion in liquid nitrogen of (a) pure EP, (b) EP/MnO2 2%, (c) EP/MnO2@ZHS 0.5%, (d) EP/MnO2@ZHS 1%, and e) EP/MnO2@ZHS 2%.
The authors apologize for any inconvenience caused and the change does not affect the scientific results. The manuscript will be updated and the original will remain online on the article webpage https://www.mdpi.com/2073-4360/11/2/229.
References
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