Hydrothermal Synthesis and Characterization of Bixbyite Mn2O3 Powder

Abstract

Abstract: The pure bixbyite Mn₂O₃ was prepared by first applying in-situ redox precipitation hydrothermal synthesis method under the very mild conditions, and characterized by XRD, TEM, BETand TGA. The effects of alkalinity, crystallization time and temperature on the product were investigated. The results demonstrated that the alkalinity has an obvious effect on the product whereas the crystallization time and temperature has only a little influence on the product. Too low alkalinity results in no formation of product, and too high alkalinity leads to no formation of pure product with a smaller particle size. Under optimized conditions, the pure bixbyite Mn₂O₃ powder with a better morphology and distribution can be obtained. The average diameter of product is approximate to 80 nm. The normal LiMn₂O₄ spinel used as cathode material can be prepared using as synthesized bixbyite Mn₂O₃ as manganese precursor at 650 ℃ for 2 h by solid state reaction.

Key words: Hydrothermal synthesis, Bixbyite, Mn₂O₃, In-situ redox precipitation

CLC Number:

O614

TrendMD:

LIU Xing-Quan, CHEN Zhao-Yong, LIU Pei-Song, YU Zuo-Long . Hydrothermal Synthesis and Characterization of Bixbyite Mn₂O₃ Powder[J]. Chem. J. Chinese Universities, 2001, 22(4): 539.

[1]	LIANG Yu, LIU Huan, GONG Lige, WANG Chunxiao, WANG Chunmei, YU Kai, ZHOU Baibin. Synthesis and Supercapacitor Properties of Biimidazole-modified ｛SiW₁₂O₄₀｝ Hybrid [J]. Chem. J. Chinese Universities, 2022, 43(1): 20210556.
[2]	ZHANG Huishuang, GAO Yanxiao, WANG Qiuxian, LI Xiangnan, LIU Wenfeng, YANG Shuting. High-low Temperature Properties of Ni-rich LiNi_0.6Co_0.2Mn_0.2O₂ Cathode Material by Hydrothermal Synthesis with CTAB Assisted [J]. Chem. J. Chinese Universities, 2021, 42(3): 819.
[3]	WANG Ye, ZHANG Xiaosi, SUN Lijing, LI Bing, LIU Lin, YANG Miao, TIAN Peng, LIU Zhongyi, LIU Zhongmin. Morphology Control of SAPO Molecular Sieves under the Assistance of Organosilane [J]. Chem. J. Chinese Universities, 2021, 42(3): 683.
[4]	WANG Jianyu, ZHANG Qiang, YAN Wenfu, YU Jihong. Roles of Hydroxyl Radicals in Zeolite Synthesis [J]. Chem. J. Chinese Universities, 2021, 42(1): 11.
[5]	WU Qinming, WANG Yeqing, MENG Xiangju, XIAO Fengshou. Reconsideration of Crystallization Process for Aluminosilicate Zeolites [J]. Chem. J. Chinese Universities, 2021, 42(1): 21.
[6]	LIU Yabing,LI Mingyang,TIAN Ge,ALATENG Shaga,PEI Tonghe,NIE Jingsi. Syntheses, Structures and Catalytic Properties of Two Supramolecular Complexes Based on 2-Pyridylamine and Cluster ^† [J]. Chem. J. Chinese Universities, 2020, 41(5): 995.
[7]	ZHUO Mengning,LI Fei,JIANG Hao,CHEN Qianwen,LI Peng,WANG Lizhang. Preparation of SnO₂/GDE Cathodes and Their Electrocatalytic Reduction of CO₂ to Produce Formic Acid ^† [J]. Chem. J. Chinese Universities, 2020, 41(3): 530.
[8]	DONG Le, HUANG Xingliang, REN Junjie, DAI Xiaoping, LIU Zongyan, TIAN Hongfeng, WANG Zhidong, WU Xiaotong. Influence Mechanism of Particle Size and Distribution of Silica Sol in the Synthesis of Ferrierite Zeolite with High SiO₂/Al₂O₃ Ratio [J]. Chem. J. Chinese Universities, 2020, 41(11): 2449.
[9]	ZHOU Hai, CHEN Hao, GUO Ya, KANG Min. Synthesis of Meso-porous Co₃O₄ Polyhedra and Their Electrochemical Properties^† [J]. Chem. J. Chinese Universities, 2019, 40(7): 1374.
[10]	GAO Ningxiao,XU Yulong,LIU Yong. Preparation of Carbon Dots from Soy Milk Powder and Fluorescent Nanofibers Containing Carbon Dots^† [J]. Chem. J. Chinese Universities, 2019, 40(3): 555.
[11]	XIA Kun, ZHOU Dan, YANG Yun, YANG Shuijin, XIA Qinghua. Efficient Synthesis of Highly Uniform AlPO₄-11 Microcrystalline and Study on the Crystallization Process^† [J]. Chem. J. Chinese Universities, 2018, 39(8): 1624.
[12]	SONG Wei, WANG Liqun, ZENG Shuangli, WANG Li, FAN Yong, XU Jianing. In situ Hydrothermal Synthesis, Crystal Structure and Fluorescence Properties of Two Cadmium Coordination Polymers^† [J]. Chem. J. Chinese Universities, 2018, 39(7): 1406.
[13]	XIA Kun,WANG Yi,ZHOU Dan,HUANG Zhe,WU Zhonghan,XIA Qinghua. Rapid Synthesis of CoSAPO-5 Zeolite and Efficiently Catalytic Epoxidation of α-Pinene with Air^† [J]. Chem. J. Chinese Universities, 2018, 39(5): 941.
[14]	HUA Chenghe, MA Hongchao, DONG Xiaoli, ZHANG Xiufang. Synthesis and Photocatalytic Activity of α-Bi₂O₃Nanotubes/Nitrogen Doped Carbon Quantum Dots Hybrid Material^† [J]. Chem. J. Chinese Universities, 2018, 39(2): 200.
[15]	FENG Huijie, ZHENG Wenjun. Synthesis of MoS₂ Hierarchical Nanostructure and Its Performance for Lithium-ion Battery^† [J]. Chem. J. Chinese Universities, 2017, 38(7): 1134.

Hydrothermal Synthesis and Characterization of Bixbyite Mn₂O₃ Powder

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments