Evaluation of anticorrosive behaviour of ZnO nanotetra-pods on a AZ91-grade Mg alloy

Abstract

Highly cross-linked zinc oxide (ZnO) with the nanorod morphology of tetra-pods was successfully prepared using a microwave irradiation (MWI) technique. In comparison with the available conventional techniques, the MWI technique has the advantage of producing different morphological structures with high purity and in a shorter reaction time. These tetra-pods consist of a ZnO core in the zinc blende from which four ZnO arms emerge in the wurtzite structure. In this investigation, the effects of irradiation times and the growth mechanism of ZnO nanotetra-pods were discussed. The structural, morphological and optical properties of ZnO nanorods were investigated by field emission scanning electron microscopy, X-ray diffraction, an ultra violet visible spectrometry and energy-dispersive spectroscopy. The electrochemical corrosion behaviours of an AZ91-grade Mg alloy and a ZnO/PN nanotetra-pod-coated Mg alloy were investigated. The Tafel plot revealed that the corrosion of Mg drastically decreased on coating with a thin layer of ZnO nanotetra-pods and PN (Mg/PN/ZnO) compared to Mg in a KOH electrolyte.

Novel low-carbon energy solutions for powering emerging wearables, smart textiles, and medical devices

“…The electromagnetic rays excite the Zn carrier and split the molecules into Zn 2+ and electrons, wherein the Zn 2+ ions sublime under the closed crucible and get deposited on the side walls of the crucible, as ZnO nanotetrapods. 386 Yupeng et al synthesized ZnO nanotetrapod shaped wires acting as a piezoelectric element embedded into a textile garment capable of monitoring the athlete running speed, angle, frequency, and lactate concentration in sweat, as shown in Fig. 24(v).…”

Growth Mechanism of Micro/Nano Metal Dendrites and Cumulative Strategies for Countering Its Impacts in Metal Ion Batteries: A Review

“…Mg, Zn, and Al batteries cannot possess the same electrolytes and mechanisms as LIBs. Mg reacts with simple structured ions (ClO4, BF4), forming passivation layers on the anode surface [467,468]. Most of the passivation layers formed on the Mg anode remain impermeable to Mg 2+ ions but degrade gradually after each cycle.…”

Exfoliated carbon nitrides for corrosion prevention in radiators: Temperature-dependent corrosion analysis

“…However, the unique surface area, adsorption capacity, and electron transfer e ciency of bulk GCN may be enhanced by exfoliation. Exfoliation of GCN has been performed using various approaches, where, herein, we synthesized simple and effective exfoliation using the hydrothermal method [13].…”

“…Using anticorrosive coolant in radiators is one of them. Materials made of carbon naturally have high levels of corrosion resistance [10][11][12][13].…”