Synthesis of hematite particles with various shapes by a simple hydrothermal reaction

Qiang DONG; Dan WANG; Jianxi YAO; Nobuhiro KUMADA; Nobukazu KINOMURA; Takahiro TAKEI; Yoshinori YONESAKI; Qiang CAI

doi:10.2109/jcersj2.117.245

Papers

Synthesis of hematite particles with various shapes by a simple hydrothermal reaction

Qiang DONG, Dan WANG, Jianxi YAO, Nobuhiro KUMADA, Nobukazu KINOMURA, Takahiro TAKEI, Yoshinori YONESAKI, Qiang CAI

Author information

Qiang DONG
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
Dan WANG
State Key Laboratory of Multi-Phase & Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences
Jianxi YAO
State Key Laboratory of Multi-Phase & Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences
Nobuhiro KUMADA
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
Nobukazu KINOMURA
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
Takahiro TAKEI
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
Yoshinori YONESAKI
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
Qiang CAI
Department of Materials Science and Engineering, TsingHua University

Keywords: Hematite particles, A simple hydrothermal reaction, Shape and size, PH value, Spherical particles

JOURNAL FREE ACCESS

2009 Volume 117 Issue 1363 Pages 245-248

DOI https://doi.org/10.2109/jcersj2.117.245

Details

Abstract

Hematite particles with various shapes have been synthesized through a simple hydrothermal reaction. The particle shape and size can be controlled by adjusting pH value in the starting solution. The products were characterized by X-ray powder diffraction patterns (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), high resolution transmission electron microscope (HRTEM), FT-IR, TG-DTA and mass spectrometry of gas species during TG-DTA. The TEM and HRTEM results revealed that large numbers of micropores ranging from 0.5-0.6 nm existed in the surface of spherical particles.

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