Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7720982 | International Journal of Hydrogen Energy | 2013 | 11 Pages |
Abstract
The Bunsen reaction, as a part of the sulfur-iodine thermochemical cycle, was studied using an electrochemical cell. The effects of current density, operating temperature, H2SO4 concentration in the anolyte, HI concentration and I2/HI molar ratio in the catholyte were explored. Both the H2SO4 in anolyte and the HI in catholyte were concentrated during electrolysis. Increasing current density amplified this H2SO4 and HI concentration, while the other operating parameters also varied the anolyte and catholyte concentration. The transport properties of the cation exchange membrane were examined. The electrode current efficiency remained close to 100% for most runs except those at high current density. Both the average cell voltage and the heat equivalent of electric energy were determined at different conditions.
Keywords
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Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Zhi Ying, Yanwei Zhang, Qiaoqiao Zhu, Pingan Peng, Zhihua Wang, Junhu Zhou, Jianzhong Liu, Kefa Cen,