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. 2020 Jan 17;10(1):167. doi: 10.3390/nano10010167

Figure 1.

Figure 1

(a) Top view SEM micrograph of NiO deposited at 1.00 V vs. Ag/AgCl. (b) Top view SEM micrograph of NiO deposited at 1.10 V vs. Ag/AgCl. (c) Top view SEM micrograph of NiO deposited by sol-gel.