Inorganic Chemicals Industry >
Synthesis of sodium titanate anode from industrial titanium liquid and its sodium storage performance
Received date: 2023-02-07
Online published: 2023-12-14
When traditional methods are used to prepare sodium titanate materials，the titanium sources used（such as TiO2，titanium tetrisopropyl alcohol，etc.） are all pure analytical reagents，which are processed by titanium-bearing minerals through multiple processes.The cost is high and the process of preparing sodium titanate is lengthy.Using industrial titanium liquid as the raw material，the metatitanic acid precursor prepared by atmospheric pressure hydrolysis was used as the titanium source，and the sodium titanate anode was synthesized by the high-temperature solid-phase method，which shortened the preparation process of sodium titanate.The results showed that the synthesized sodium titanate was mainly a mixed phase of Na2Ti3O7 and Na2Ti6O13，and its initial discharge specific capacity could reach 233.77 mA·h/g at a low current density of 17.7 mA/g.After 200 times at the current density of 88.5 mA/g，the discharge specific capacity of the prepared sodium titanate material was 26.87 mA·h/g，its capacity retention rate was 47.56%，and its charge-discharge efficiency was 99.54%.After further analysis，the sodium storage process of the prepared mixed sodium titanate was dominated by pseudocapacitive behavior.
ZHANG Rui , WANG Zhenghao , CHEN Liang , GUO Xiaodong , LUO Dongmei . Synthesis of sodium titanate anode from industrial titanium liquid and its sodium storage performance[J]. Inorganic Chemicals Industry, 2023 , 55(12) : 66 -73 . DOI: 10.19964/j.issn.1006-4990.2023-0055
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