A new consumable anode material of titanium oxycarbonitride for the USTB titanium process

Qiuyu Wang; Jianxun Song; Jinyu Wu; Shuqiang Jiao; Jungang Hou; Hongmin Zhu

doi:10.1039/c4cp00185k

A new consumable anode material of titanium oxycarbonitride for the USTB titanium process

Qiuyu Wang, Jianxun Song, Jinyu Wu, Shuqiang Jiao, Jungang Hou, Hongmin Zhu

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

A single phase titanium oxycarbonitride TiC_0.25O _0.25N_0.5 was prepared by sintering a homogenous mixture of TiO, TiC and TiN with a molar ratio of 1:1:2 by spark plasma sintering (SPS) at 1873 K. TiO_0.25C_0.25N_0.5 was then used as the consumable anode for the USTB titanium process and the anode dissolution process was investigated by electrochemical methods. The results showed that TiO _0.25C_0.25N_0.5 was electrochemically dissolved into Ti²⁺ in the NaCl-KCl melts as determined by square-wave voltammetry analysis and simultaneously CO as well as N₂ evolved in the anode as detected by mass spectroscopy. And TiO_0.25C _0.25N_0.5 has exhibited a similar electron transfer resistance as TiC_0.5O_0.5 and TiN as measured by electrochemical impedance spectroscopy (EIS) analysis. By galvanostatic electrolysis, the cathode products were proved to be pure titanium powders. The results indicated that TiO_0.25C_0.25N_0.5 is a suitable consumable anode for the USTB titanium process.

Original language	English
Pages (from-to)	8086-8091
Number of pages	6
Journal	Physical Chemistry Chemical Physics
Volume	16
Issue number	17
DOIs	https://doi.org/10.1039/c4cp00185k
Publication status	Published - 2014 May 7
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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title = "A new consumable anode material of titanium oxycarbonitride for the USTB titanium process",

abstract = "A single phase titanium oxycarbonitride TiC0.25O 0.25N0.5 was prepared by sintering a homogenous mixture of TiO, TiC and TiN with a molar ratio of 1:1:2 by spark plasma sintering (SPS) at 1873 K. TiO0.25C0.25N0.5 was then used as the consumable anode for the USTB titanium process and the anode dissolution process was investigated by electrochemical methods. The results showed that TiO 0.25C0.25N0.5 was electrochemically dissolved into Ti2+ in the NaCl-KCl melts as determined by square-wave voltammetry analysis and simultaneously CO as well as N2 evolved in the anode as detected by mass spectroscopy. And TiO0.25C 0.25N0.5 has exhibited a similar electron transfer resistance as TiC0.5O0.5 and TiN as measured by electrochemical impedance spectroscopy (EIS) analysis. By galvanostatic electrolysis, the cathode products were proved to be pure titanium powders. The results indicated that TiO0.25C0.25N0.5 is a suitable consumable anode for the USTB titanium process.",

author = "Qiuyu Wang and Jianxun Song and Jinyu Wu and Shuqiang Jiao and Jungang Hou and Hongmin Zhu",

year = "2014",

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T1 - A new consumable anode material of titanium oxycarbonitride for the USTB titanium process

AU - Wang, Qiuyu

AU - Song, Jianxun

AU - Wu, Jinyu

AU - Jiao, Shuqiang

AU - Hou, Jungang

AU - Zhu, Hongmin

PY - 2014/5/7

Y1 - 2014/5/7

N2 - A single phase titanium oxycarbonitride TiC0.25O 0.25N0.5 was prepared by sintering a homogenous mixture of TiO, TiC and TiN with a molar ratio of 1:1:2 by spark plasma sintering (SPS) at 1873 K. TiO0.25C0.25N0.5 was then used as the consumable anode for the USTB titanium process and the anode dissolution process was investigated by electrochemical methods. The results showed that TiO 0.25C0.25N0.5 was electrochemically dissolved into Ti2+ in the NaCl-KCl melts as determined by square-wave voltammetry analysis and simultaneously CO as well as N2 evolved in the anode as detected by mass spectroscopy. And TiO0.25C 0.25N0.5 has exhibited a similar electron transfer resistance as TiC0.5O0.5 and TiN as measured by electrochemical impedance spectroscopy (EIS) analysis. By galvanostatic electrolysis, the cathode products were proved to be pure titanium powders. The results indicated that TiO0.25C0.25N0.5 is a suitable consumable anode for the USTB titanium process.

AB - A single phase titanium oxycarbonitride TiC0.25O 0.25N0.5 was prepared by sintering a homogenous mixture of TiO, TiC and TiN with a molar ratio of 1:1:2 by spark plasma sintering (SPS) at 1873 K. TiO0.25C0.25N0.5 was then used as the consumable anode for the USTB titanium process and the anode dissolution process was investigated by electrochemical methods. The results showed that TiO 0.25C0.25N0.5 was electrochemically dissolved into Ti2+ in the NaCl-KCl melts as determined by square-wave voltammetry analysis and simultaneously CO as well as N2 evolved in the anode as detected by mass spectroscopy. And TiO0.25C 0.25N0.5 has exhibited a similar electron transfer resistance as TiC0.5O0.5 and TiN as measured by electrochemical impedance spectroscopy (EIS) analysis. By galvanostatic electrolysis, the cathode products were proved to be pure titanium powders. The results indicated that TiO0.25C0.25N0.5 is a suitable consumable anode for the USTB titanium process.

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