Despite of favoring high-quality CuO nanostructures, the commercial potentialtial of gas phase grown CuO nanostructures remains constrained by expensive equipments and high-energy consumption of the process [13]. Such restrictions animated research on hydrothermal solution phase synthesis, which has advantages such as low temperature, versatile synthetic process, great potential for scale up, low-energy requirements, and safe and environmentally benign synthetic conditions. Moreover, diverse and multifarious CuO nanostructures integrated by various solution synthetic techniques have potential use in novel devices [14].