Issue 3, 2021

Electrochemical reduction of Cr(vi) in water: lessons learned from fundamental studies and applications

Abstract

Converting toxic Cr(VI) to benign Cr(III) would offer a solution to decontaminate drinking water. Electrochemical methods are ideally suited to carry out this reduction without added external reductants. Achieving this transformation at low overpotentials requires mediating the transfer of protons and electrons to Cr(VI). In this review thermodynamic parameters will be discussed to understand Cr(VI) speciation in water and identify reduction pathways. The electrochemical reduction of Cr(VI) at bare electrodes is reviewed and mechanistic considerations are discussed. Works on modified electrodes are compared to identify key parameters influencing the reduction. An overview of current applications to Cr(VI) reduction is briefly discussed to link fundamental studies to applications.

Graphical abstract: Electrochemical reduction of Cr(vi) in water: lessons learned from fundamental studies and applications

Article information

Article type
Review Article
Submitted
08 sep. 2020
First published
16 des. 2020

Chem. Soc. Rev., 2021,50, 1642-1667

Electrochemical reduction of Cr(VI) in water: lessons learned from fundamental studies and applications

C. M. Stern, T. O. Jegede, V. A. Hulse and N. Elgrishi, Chem. Soc. Rev., 2021, 50, 1642 DOI: 10.1039/D0CS01165G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements