Fabrication and Characteristics of Villous Zinc Oxalate by using a Sol-Gel and Microbeam-Laser Method

Authors:

Hsu C^1* and Hsu LA²

DOI: 10.23880/nnoa-16000112

Volume 2, Issue 1

Abstract

Villous zinc oxalate (ZnC₂O₄) was successfully prepared from reduced graphene oxide (RGO) and zinc oxide using a two-precursor sol-gel method, and scanned using a matrix-dotted microbeam laser. Application of the laser caused the synthesized ZnC₂O₄ to melt and resolidify, forming uniformly spread nanovillous protrusions. The characteristics of the microstructures were examined using X-ray diffraction, energy dispersive X-ray analysis, field emission scanning electron microscopy, and Raman spectroscopy. Various ratios of RGO:ZnO were demonstrated to produce villous ZnC₂O₄; moreover, the structures of -ZnC₂O₄ and -ZnC₂O₄ were found to coexist in the sol-gel powders. -ZnC₂O₄ produces a villous shape because of a minute characteristic that favors the formation of such structures. The carbon from RGO is attracted through impurity sites, resulting in oversaturation with C/Zn at approximately the same ratio as that of RGO and ZnO because of the counter-ion effect between the cation and anion bonds.

Keywords:

Zinc Oxalate; Villous; Reduced Graphene Oxide; Zinc Oxide

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