Fabrication, Structure, and Magnetic Properties of Highly Ordered Prussian Blue Nanowire Arrays

Abstract

Highly ordered Prussian blue nanowire arrays with diameters of about 50 nm and lengths up to 4µm have been fabricated for the first time by an electrodepositing technology with two-step anodizing anodic aluminum oxide films. X-ray diffraction and transmission electron microscopy measurement results show that the Prussian blue nanowires are dense, continuous, and highly crystalline with an fcc cubic structure of a ) 10.14 Å. The Mo 1ssbauer spectrum and infrared spectrum at room temperature indicate that the nanowires are ferric ferrocyanide: one kind of iron is Fe 3+ with high spin and the other is Fe 2+ with low spin. Magnetic property measurement results indicate that the Curie temperature of Prussian blue nanowire decreases as the average numbers of magnetic interaction neighbors is reduced.

Magnetism and Photomagnetism of Prussian Blue Analogue Nanoparticles Embedded in Porous Metal Oxide Ordered Nanostructures

“…5 μm thick) cylinder (50-300 nm) 2D hexagonal [46,[49][50][51][52][53][54][55] SiO 2 powder (SBA-15) cylinder (5-7.5 nm) 2D hexagonal [56,57] SiO 2 powder (MCM-41) cylinder (2-3 nm) 2D hexagonal [37,57] SiO 2 powder (MSU) cylinder (2-3 nm) 2D hexagonal and wormlike [58] SiO 2 monolith cylinder (5-6 nm) 2D hexagonal [59] SiO 2 monolith cylinder (5-6 nm) cubic [59] SiO 2 monolith intersheet space (2 nm) lamellar [59] SiO 2 film cylinder (5-6 nm) 2D hexagonal, parallel to the surface [61] SiO 2 film cylinder (3 nm) 2D hexagonal, perpendicular to the surface [60] TiO 2 film perforation (50-80 nm) 2D hexagonal, perpendicular to the surface [62,63] [a] Or lamellar intersheet distance.…”

“…Scheme of the unit cell for (a) an alkali-cation-free PBA, and (b) a PBA containing two alkali cations per cell. compounds, many efforts have thus been devoted to produce PBAs in various shapes and sizes: nanoparticles, [32][33][34][35][36][37][38][39] core-shell particles, [40][41][42] films [43][44][45] and wires, [46,47] thus also making them key compounds in the field of molecular nanomaterials.…”

Inkjet Printed Prussian Blue Films for Hydrogen Peroxide Detection

“…4,13 Regular configuration of amperometric measurements for H2O2 consists of a conductive lead connected to a surfacemodified electrode, on which a PB layer is deposited. Various methods, such as spontaneous chemical reactions, 11,12,14,15 potential cycling method 4,7 and galvanostatic method, 8,9,[16][17][18][19][20][21] have been proposed to modify electrode surfaces. The detection limit of the PB-modified electrodes can be as low as 10 -8 M with a wide linear range of up to 10 -2 M. 13 Although electrode surfaces after electrochemical treatment can be fairly sensitive, these processes can be time consuming and usually operate batchwise.…”

Electrical Properties of Electrodeposited ZnCuTe Ternary Nanowires Embedded in Polycarbonate Membrane

“…The templateassisted electrodeposition has been demonstrated to be a simple and versatile approach for the preparation of the 1D nanostructure of numerous materials, including metals [28], semiconductors [29] and conductive polymers [30]. It has been considered as one of the most efficient methods in controlling the growth of nanowires because it takes place exclusively in the normal direction of the substrate.…”