Abstract
Fe-TiB2 composite cathode materials were prepared by cold pressing sintering in which metal Fe was added as sintering aids. The electrolysis performance was studied in a 20 A electrolysis test, and the composition phase analyses of the composite cathode materials before and after the electrolysis test were carried out by using an energy spectrometer (EDS), and the migration behavior of various elements in the electrolysis process was studied. The results showed that the Fe could effectively fill the gap between the aggregate during the sintering process and improve the sintering density of the composite cathode material significantly. The voltage of the 20 A electrolysis test is stable. The impurity of the aluminum is 0.81%. The surface of the composite cathode is wetted obviously by the aluminum liquid. In the process of electrolysis, the alkali metal is main. In the permeation of the liquid electrolyte into the cathode material, the permeation of K element was more deeply than that of Na element; the Al produced on the cathode surface and the Fe in the cathode material will diffuse to each other until the relative equilibrium is reached.
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References
Kai.G, Kvande. H. “Introduction to Aluminium Electrolysis”. Alu Media (1993).
Viswanath, R. P. “A patent for generation of electrolytic hydrogen by a cost effective and cheaper route.” International Journal of Hydrogen Energy, 29.11(2004):1191–1194.
Qiu zhuxian. “aluminium electrolysis”. Beijing Metallurgical industry press, (1982).
Kvande, H. “Inert electrodes in aluminum electrolysis cells”, Light Metals, (1999), 369–376.
Hryn, J. N. “A dynamic inert metal anode. “Office of Scientific & Technical Information Technical Reports (1998).
Olsen, Espen, and J. Thonstad. “The Behaviour of Nickel Ferrite Cermet Materials as Inert Anodes.” (1996).
Alton Tabereaux, Jim Brown, Ivan Eldridege. “The Operational Performance of 70kA Prebake Cells Retrofitted With TiB2-G Cathode Elements”, Light Metals, (1998), 257.
T. R. Alcom, A. T. Tabereaux, N. E. Richards. “Operational Results of Pilot Cell Test With Cermet Inen Anodes”, Light Metals, (1999), 312.
X. A. Liao, Harald A. Q ye. “Effects of Carbon-Coatings on Sodium Expansion of the Cathode in Aluminum electrolysis”, Light Metals, (1999), 629.
Briem, S, et al. “Development of energy demand and energy-related CO2 emissions in melt electrolysis for primary aluminium production.” Aluminium (2000).
Huglen, Reidar, and H. Kvande. “Global Considerations of Aluminium Electrolysis on Energy and the Environment.” (2016).
H. A. Øye, et al. “Aluminum: Approaching the new millennium.” JOM 51.2(1999):29–42.
Mcminn, Curtis J. “A Review of RHM Cathode Development.” (2013):1164–1170.
Qiu, Zhuxian. “Research and Development of Inert cathode and Anode in Aluminium Electrolysis.” Engineering Science (2001).
Rudolf P. Pawlek, “ Aluminum wettable cathodes: an update in: R D Peterson eds”, Light Metals, (2000), 449–454.
Kang, Shin H., et al. “Pressureless Sintering and Properties of Titanium Diboride Ceramics Containing Chromium and Iron.” Journal of the American Ceramic Society 84.4(2010):893–895.
Finch, C. B., and V. J. Tannery. “Crack Formation and Swelling of TiB2‐Ni Ceramics in Liquid Aluminum.” Journal of the American Ceramic Society 65.7(2010):c100–c101.
Escribano, Sylvie, et al. “Characterization of PEMFCs gas diffusion layers properties.” Journal of Power Sources 156.1(2006):8–13.
H. A. Øye, et al. “Properties of a Colloidal Alumina-Bonded TiB2, Coating on Cathode Carbon Materials.” (2016).
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© 2019 The Minerals, Metals & Materials Society
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Liang, Y. et al. (2019). Electrolytic Properties and Element Migration Behavior of Fe-TiB2 Composite Cathode. In: Chesonis, C. (eds) Light Metals 2019. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05864-7_164
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DOI: https://doi.org/10.1007/978-3-030-05864-7_164
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