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. 2020 May 29;10(6):1039. doi: 10.3390/nano10061039

Figure 14.

Figure 14

SEM photos of SiO2 xerogel and nano-sized Al/RDX/SiO2 composite particles. (a) SiO2 xerogel; (b) 30%; (c) 50%; (d) 70%. Reproduced from [53], with permission from Han Neng Cai Liao, 2017.