Preparation and structure analysis of Gd(OH)₃nanorods

Abstract

Gd(OH) 3 nanorods have been prepared via hydrothermal growth, and their microstructures are characterized by x-ray diffraction, high-resolution transmission electron microscopy and electron energy loss spectroscopy. The diameters of the Gd(OH) 3 nanorods are 15-20 nm and the lengths are 150-250 nm. The nanorods are single crystalline with clean surfaces, and they grow preferentially along the [001] direction.

Synthesis and characterization of Gd(OH)3 and Gd2O3 nanorods

“…Gd(OH) 3 has been synthesized under basic conditions by a facile solution-based method such as hydrothermal and precipitation method [6,7]. Nanorod morphology of Gd(OH) 3 has most commonly been obtained by solution methods [3,[7][8][9][10][11][12][13]. The preferential growth direction of the rod was reported to be in the 〈001〉 direction [8].…”

“…Nanorod morphology of Gd(OH) 3 has most commonly been obtained by solution methods [3,[7][8][9][10][11][12][13]. The preferential growth direction of the rod was reported to be in the 〈001〉 direction [8]. Other morphologies include nanotubes, nanosheets, hollow spheres, nanoflowers, nanoclusters, and nanowires [14][15][16][17][18][19][20][21][22] Du and Tendeloo prepared Gd(OH) 3 nanorods by a hydrothermal method using NaOH as an alkali at 110-150 1C for 24 h [8].…”

“…The preferential growth direction of the rod was reported to be in the 〈001〉 direction [8]. Other morphologies include nanotubes, nanosheets, hollow spheres, nanoflowers, nanoclusters, and nanowires [14][15][16][17][18][19][20][21][22] Du and Tendeloo prepared Gd(OH) 3 nanorods by a hydrothermal method using NaOH as an alkali at 110-150 1C for 24 h [8]. However, Jia et al reported nanotube morphology using ammonia (or NaOH) and Gd(NO 3 ) 3 solution by a precipitation method at 75 1C for 18 h [16].…”

pH Dependent Hydrothermal Synthesis and Photoluminescence of Gd2O3:Eu Nanostructures

“…It has been reported that the growth direction of Gd(OH) 3 to nanorods is parallel to the (110) planes of the hexagonal unit cell. (Du & van Tendeloo, 2005) High resolution transmission electron microscope (HRTEM) images of Gd(OH) 3 :Eu nanorod and nanowire are compared in Fig. 3.…”

Thermo and photoluminescence properties of Eu3+ activated hexagonal, monoclinic and cubic gadolinium oxide nanorods

“…Gd 2 O 3 :Eu 3+ phosphors have been extensively synthesized in different methods such as sol gel [13], co-precipitation [14], combustion [15], chemical vapor deposition [16], solid state reaction [17], spray pyrolysis [18], etc. Among these methods, the hydrothermal method has been used frequently due to its simplicity, highly uniformity and reproducibility of the product, high efficiency and low cost [19]. Eu 3+ activated Gd 2 O 3 is one of the important red-emitting phosphor, which is a promising host matrix for multiphoton and up-conversion excitation [20,21].…”