Figure 2
SEM images of modern spruce pretreated with (a) no treatment, (b) platinum sputtering, (c) 5% EMI-TFSI, (d) 5% EMI-DCA, (e) 10% BMP-TFSI, and (f) 7.5% BMP-DCA/ethanol solutions. The acceleration voltage is 5 kV.
Figure 2 | Scientific Reports
