Electrochemical Synthesis of Yttrium Oxide Nanotubes

Abstract

Horn-shaped yttrium oxide nanotubes (“nanohorns”) with base diameters ranging from 450 to 900 nm, tip diameters ranging from 80 to 100 nm, and lengths of 3.9 to 16.5 μm were prepared by electrodeposition on a vapor deposited gold substrate in a nonaqueous medium.

Controllable Synthesis of Y2O3 Microstructures for Application in Cataluminescence Gas Sensing

“…[2] Yttrium oxide and its derivatives are attractive materials for their unique optical and electronic qualities and good catalytic properties towards many reactions, and have been used in a broad range of fields, such as optics and optoelectronics, [3] advanced ceramics, [4] chemical sensors, [5] catalysis, [6] and energy conversion and storage devices. [7] In the last decade, various shapes of solid materials, such as nanorods, nanotubes, nanoplates, microspheres, nanopolyhedra, and other polymorphic forms, have been synthesized by a variety of techniques such as solution-based sol-gel processing, [8] combustion, [9] microemulsion techniques, [10] co-precipitation, [11] hydrothermal/solvothermal synthesis, [12] thermolysis, [13] electrochemical methods, [14] solid/liquid-phase chemical routes, [15] and combinations thereof. Among the methods used in nanomaterials synthesis, owing to its great chemical flexibility and synthetic reliability, [16] hydrothermal synthesis has emerged as a powerful technology to prepare high-quality anisotropic architectures, such as nanorods, nanowires, nanobelts, nanotubes, and nanosheets, as well as even more complex fullerene-like Y 2 O 3 .…”

Luminescence of Nanocrystalline Erbium‐Doped Yttria

“…[5] A number of different routes, such as the solution-based sol-gel process, gel combustion synthesis, emulsion technique, coprecipitation method, hydrothermal method, template method, electrochemical method, or their combinations have been used to synthesize RE-doped Y 2 O 3 nanomaterials. [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] In this work, we employed a large-scale and facile molten salt synthesis (MSS) process for the first time to prepare single-crystalline Er 3þ -doped luminescent nanostructures in a mixing salt medium at 500 8C. [34,35] This process allows us to readily make Y 2 O 3 nanocrystals with various Er 3þ doping levels, and its intrinsic scalability, flexibility and simplicity render it attractive for the preparation of a wide range of RE-doped luminescent nanomaterials.…”

Synthesis of Inorganic Nanotubes

“…[150] Y 2 O 3 nanotubes are prepared by a non-aqueous electrochemical method involving oxide transfer to Y III precursors. [151] These horn-shaped nanotubes (nanohorns) with a narrow size distribution coexist with small nodular deposits. The horn-shaped structures are hollow.…”