Abstract
In this report, we present a detailed study of the formation of alumina nanostructures at the surface of aluminium plate by hot water treatment (HWT) at various temperatures. The nanostructures were studied by scanning electron microscopy. The superhydrophilic property of the treated surface was revealed and its stability was investigated. It was shown that HWT could be used also for synthesis of the aqueous suspensions of alumina nanoparticles. It is proposed that the method can be applied for production of surface nanostructures and nanoparticles of various metal oxides.
Highlights
Nanomaterials have numerous applications in various areas, such as catalysis [1], photonics [2], molecular computing [3], energy storage [4,5], fuel cells [6,7], sensing [8,9,10], and nanomedicine [1115]
We present a detailed study of the formation of alumina nanostructures at the surface of aluminium plate by hot water treatment (HWT) at various temperatures
Nanostructure morphology The study of nanostructures formed at various durations of HWT at fixed water temperature (80°C) allowed us to reveal three stages of nano-sheets formation
Summary
Nanomaterials have numerous applications in various areas, such as catalysis [1], photonics [2], molecular computing [3], energy storage [4,5], fuel cells [6,7], sensing [8,9,10], and nanomedicine [1115]. We present a detailed study of the formation of alumina nanostructures at the surface of aluminium plate by hot water treatment (HWT) at various temperatures. Metal oxide nanostructures (MONSTRs) and nanoparticles (MONPs) produced by treatment of the metal surface demonstrate unique physical and chemical properties. It has been demonstrated that a simple Hot Water Treatment (HWT) process allowed producing MONSTRs on the surface of various metals, their compounds and alloys by a one-step, scalable, low-cost, and eco-friendly process [32].
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