The Influence of Potassium Ions' Concentration on Morphology and Size of Cr2O3 Particles Synthesized via Hydrothermal Reduction

被引：1

作者：

Pei, Zhenzhao ^{[1
,2
]}

Gao, Xiang ^{[1
,2
]}

Zheng, Xianlong ^{[1
]}

Lu, Xueting ^{[1
]}

Zhang, Yunxia ^{[1
]}

机构：

[1] Hebei Univ Engn, Coll Sci, Handan 056038, Hebei, Peoples R China

[2] Hebei Univ Engn, Sch Urban Construct, Handan 056038, Hebei, Peoples R China

来源：

NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2015年 / 7卷 / 05期

关键词：

Cr2O3; Potassium Ions; Hydrothermal; Microstructure; Scanning Electron Microscope; CHROMIC OXIDE; NANOPARTICLES; TEMPERATURE; PERFORMANCE;

D O I：

10.1166/nnl.2015.1988

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cr2O3 particles with different sizes and morphologies were synthesized in a sequence by changing the ratio of K2Cr2O7 to CrO3 in hydrothermal system. The raw materials were K2Cr2O7, HCHO and CrO3. With the decrease of the ratio of K2Cr2O7 to CrO3, there is a trend for the size to shorten. The ratio of 1 to 2 is the watershed to generate big sized partilces. As the ratio was 1:0, products were 220-680 micrometer monodispersed particles. The mechanism that K+ influences the size and morphology of the product has been discussed. Constituents of precursor were verified by FT-IR methods. Microstructures were observed on a scanning electron microscope and phase composition and the crystallinity were investigated by X-ray techniques.

引用

页码：451 / 453

页数：3

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