Show simple item record

dc.contributor.authorZhao, Yun
dc.contributor.authorGu, Shuang
dc.contributor.authorGong, Ke
dc.contributor.authorZheng, Jie
dc.contributor.authorWang, Junhua
dc.contributor.authorYan, Yushan
dc.identifier.citationY. Zhao, S. Gu, K. Gong, J. Zheng, J. Wang, Y. Yan, Angew. Chem. Int. Ed. 2017, 56, 10735en_US
dc.descriptionClick on the DOI link to access the article (may not be free).en_US
dc.description.abstractGaseous HCl as a by-product is often produced from chlorination processes using Cl-2 gas. Onsite Cl-2 regeneration from HCl is highly desirable as it eliminates the need to buy new Cl-2 and dispose HCl waste. A gaseous HCl electrolysis with Fe3+/Fe2+ redox-mediated cathode is demonstrated for Cl-2 regeneration. HCl is oxidized to generate Cl-2 and protons in the anode while Fe3+ is reduced to Fe2+ in the cathode. Simultaneously Fe3+ is regenerated by chemical oxidation of Fe2+ by oxygen (air) that also produces water. A low operational voltage and high coulombic efficiency are achieved by using a novel composite porous membrane and hydrophobic anode. Specifically, a cell voltage of only 0.64 Vis needed at the typical current density of 4 kA m(-2), leading to a low energy consumption of 483 kWh per ton of Cl-2 (124 kJ mol(Cl2)(-1)) which is about 50-55% of state-of-the-art HCl electrolysis processes.en_US
dc.description.sponsorshipDEGi Chlorine is gratefully acknowledged.en_US
dc.publisherJohn Wiley & Sons, Inc.en_US
dc.relation.ispartofseriesAngewandte Chemie-International Edition;v.56:no.36
dc.subjectChlorine regenerationen_US
dc.subjectEnergy consumptionen_US
dc.subjectHCl electrolysisen_US
dc.subjectRedox cathodeen_US
dc.titleLow-voltage gaseous HCl electrolysis with an iron redox-mediated cathode for chlorine regenerationen_US
dc.rights.holderCopyright © 1999-2017 John Wiley & Sons, Inc. All Rights Reserveden_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record