A Spectroscopic and Electrochemical Study of Molybdenum(IV) and Tungsten(IV) Species in Alkali Chloride Melts / Ivanov A. B.,Volkovich V. A.,Pukhov M. A.,Podlasova K. O.,Poskryakov D. A.,Vasin B. D.,Griffiths T. R. // . - 2016. - V. 75, l. 15. - P. 417-430.

ISSN/EISSN:
1938-5862 / нет данных
Type:
Proceedings Paper
Abstract:
Speciation and electrochemical properties of molybdenum(IV) and tungsten(IV) species were investigated in NaCl-CsCl, NaCl-KCl-CsCl and LiCl-KCl-CsCl eutectic based melts between 500-900 degrees C. Metallic tungsten dissolves anodically, yielding W(IV) ions that are prone to oxidation upon prolonged contact with silica. Electrode potentials of tungsten in fused chlorides were measured. Electronic absorption spectra of the melts containing the products of anodic dissolution of tungsten were recorded. Mo(IV) ions can be formed by reacting molybdenum dioxide with hydrogen chloride or by anodic oxidation of Mo(III) ions. Electronic absorption spectra of Mo(IV) species were recorded and Mo(III)/Mo(IV) red-ox potentials were estimated.
Author keywords:
нет данных
DOI:
10.1149/07515.0417ecst
Web of Science ID:
ISI:000406655900043
Соавторы в МНС:
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Поле Значение
Editor Haverhals, L and Mantz, R and Trulove, P and Ueda, M and Carter, M and Biddinger, EJ and Suroviec, A and Reichert, M and Endres, F and Bund, A and Ispas, A and Fox, DM and DeLong, H
Booktitle MOLTEN SALTS AND IONIC LIQUIDS 20
Series ECS Transactions
Note 20th Int Symposium on Molten Salts and Ionic Liquids as part of the Joint Meeting of the 230th Meeting of The Electrochemical-Society, The Electrochemical-Society-of-Japan, and the Korean-Electrochemical-Society, Honolulu, HI, OCT 02-07, 2016
Organization Electrochem Soc; Electrochem Soc Japan; Korean Electrochem Soc; Chinese Soc Electrochemistry; Royal Australian Chem Inst, Electrochemistry Div; Japan Soc Appl Phys; Korean Phys Soc Semiconductor Div; Chinese Phys Soc, Semiconductor Phys Div; Electrochem Soc, Phys \& Analyt Electrochemistry Div; Electrochem Soc, Electrodeposit Div; Electrochem Soc, Energy Technol Div; Electrochem Soc, Sensor DIv
Publisher ELECTROCHEMICAL SOC INC
Address 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
Language English
ISBN 978-1-60768-732-0
Research-Areas Electrochemistry; Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories Electrochemistry; Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers Volkovich, Vladimir/K-8339-2012
ORCID-Numbers Volkovich, Vladimir/0000-0003-4438-1194
Funding-Acknowledgement Ministry of Education and Science of Russian Federation {[}N976.42G.041/14]
Funding-Text The authors are grateful to the Ministry of Education and Science of Russian Federation for financial support (agreement N976.42G.041/14). Generous help of Dr. A. V. Chukin with the X-ray diffraction measurements is also greatly appreciated.
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