Synthesis of self-assembled α-GaOOH microrods and 3D hierarchical architectures with flower like morphology and their conversion to α-Ga2O3

被引：13

作者：

Prakasam, Balasubramaniam Arul ^{[1
]}

Lahtinen, Manu ^{[2
]}

Muruganandham, Manickavachagam ^{[3
]}

Sillanpaa, Mika ^{[1
]}

机构：

[1] Lappeenranta Univ Technol, Lab Green Chem, FI-50130 Mikkeli, Finland

[2] Univ Jyvaskyla, Dept Chem, Labs Inorgan & Analyt Chem, FI-40014 Jyvaskyla, Finland

[3] Temple Univ, Water & Environm Tech WET Ctr, Dept Civil & Environm Engn, Philadelphia, PA 19122 USA

来源：

MATERIALS LETTERS | 2015年 / 158卷

关键词：

Synthesis; Hydrothermal; Microstructure; GaOOH; Calcination; Nanoparticle; HYDROTHERMAL ROUTE; NANORODS; BETA-GA2O3; NANOWIRES; OXIDES;

D O I：

10.1016/j.matlet.2015.05.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This report reveals the methodology for the fabrication of alpha-GaOOH micro rods and micro flowers from gallium nitrate with two different complexing agents. alpha-GaOOH self-assembled 3D hierarchical architecture, comprising of nanorods and nanoribbbons with a flower like morphology, is fabricated under benign hydrothermal conditions. Calcination of alpha-GaOOH results in formation of alpha-Ga2O3 with the retention of morphology. Both gallium oxyhydroxide and gallium oxide microstructures were analyzed with SEM, EDX, TEM and powder X-ray diffraction. alpha-Ga2O3 micro flowers are furnished with nanorods having ordered diamond like cross section with a diagonal length proportion of 2:1. The hydrothermally fabricated GaOOH and their calcinated products (Ga2O3) were phase pure. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：370 / 372

页数：3

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