Inorganic Chemicals Industry >
Study on large-scale preparation and electrochemical properties of high thermal stabilized α-Fe2O3
Received date: 2021-09-15
Online published: 2022-03-18
Ferric oxide（Fe2O3） is an important n-type semiconductor material,which has been widely used in the fields of dyes,sensors,wastewater treatment,photocatalysis and lithium ion batteries.α-Fe2O3 with different sizes of flake structures was synthesized by hydrothermal method.The large size of flake α-Fe2O3 could still retain its original color and shape at 1 000 ℃,which proved that it had high thermal stability and had great application potential in paint,dye and other fields.The effect of NaOH and FeCl3 solution concentration and mixing order on α-Fe2O3 materials was studied.Moreover,the band gap,lithium storage performance and the dependence of powder color and size were analyzed.The results showed that flake α-Fe2O3 with different sizes could be obtained by adjusting the NaOH concentration and NaOH/FeCl3 adding sequence.The color of α-Fe2O3 deepened with the increase of particle size,and the band gap increased with the decrease of the particle size.Moreover,the actual capacity of the battery could be improved by dozens of nano-sized particles compared with micron size particles.It would provide the benefit to the research and development of the macro-preparation process of α-Fe2O3 and the application of electrochemistry,ceramic glazes,pigments.More importantly,the development of α-Fe2O3 was of great significance for reducing carbon emissions from traditional energy activities and promoting China′s early realization of the“dual carbon” national goal.
Zheng LU , Kunfeng CHEN , Dongfeng XUE . Study on large-scale preparation and electrochemical properties of high thermal stabilized α-Fe2O3[J]. Inorganic Chemicals Industry, 2022 , 54(3) : 45 -50 . DOI: 10.19964/j.issn.1006-4990.2021-0564
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