A practical and feasible way to synthesize Magnéli phase conductive nanowires

Top-down surfactant-free electrosynthesis of magnéli phase Ti9O17 nanowires

“…The most common approaches include, among others, sol–gel, hydrothermal, solvothermal, microwave-assisted, surfactant-assisted, and sonochemical methods, as well as chemical and physical vapor deposition. 25 Nonetheless, the synthesis of TiO 2 -like nanowires usually relies on complicated multi-step approaches at elevated temperatures or pressures utilizing additives, such as surfactants, which can be harmful to the environment. For example, in physical and chemical vapor deposition, Ti vapor condenses at the surface of a substrate and forms a solid-phase nanostructure.…”

Different Reactivity of Rutile and Anatase TiO2 Nanoparticles: Synthesis and Surface States of Nanoparticles of Mixed‐Valence Magnéli Oxides

“…[17] However, mosto ft he materials reported abovea re produced in two main separatew ays. [5,7,8,[18][19][20][21] These residues confine the oxide during the transformation of TiO 2 into MagnØli phases and enable recovery of nanostructured materials. It unavoidably produces carbon residues, which accountf or about 2-20 wt %o ft he products.…”

“…It unavoidably produces carbon residues, which accountf or about 2-20 wt %o ft he products. [5,7,8,[18][19][20][21] These residues confine the oxide during the transformation of TiO 2 into MagnØli phases and enable recovery of nanostructured materials. However,c arbonaceous moieties are present at the surface of the MagnØli material.…”

“…The first pathway relies on carbothermal reduction of TiO 2 at about 800–1100 °C. It unavoidably produces carbon residues, which account for about 2–20 wt % of the products . These residues confine the oxide during the transformation of TiO 2 into Magnéli phases and enable recovery of nanostructured materials.…”