Molecularly Functionalized Electrodes for Efficient Electrochemical Water Remediation
Document Type
Article
Publication Date
8-23-2021
Abstract
The development and investigation of materials that leverage unique interfacial effects on electronic structure and redox chemistry are likely to play an outstanding role in advanced technologies for wastewater treatment. Here, the use of surface functionalization of metal oxides with a RuIIpoly(pyridyl) complex was reported as a way to create hybrid assemblies with optimized electrochemical performance for water remediation, superior to those that could be achieved with the molecular catalyst or metal-oxide electrodes used individually. Mechanistic analysis demonstrated that the molecularly functionalized electrodes could suppress the formation of hydroxyl radicals (i. e., the dominant remediation pathway for bare metal-oxide electrodes), allowing the water remediation to proceed through the highly oxidizing Ru3+ ions in the surface-bound complexes. Furthermore, the underlying metal-oxide substrates played a crucial role in altering the electronic structure and electrochemical properties of the surface-bound catalyst, such that the competing side reaction (i. e., water splitting) was largely inhibited.
Identifier
85109788594 (Scopus)
Publication Title
Chemsuschem
External Full Text Location
https://doi.org/10.1002/cssc.202100878
e-ISSN
1864564X
ISSN
18645631
PubMed ID
34143541
First Page
3267
Last Page
3276
Issue
16
Volume
14
Grant
DE‐AC02‐06CH11357
Fund Ref
U.S. Department of Energy
Recommended Citation
He, Xiang; Eberhart, Michael S.; Martinson, Alex B.F.; Tiede, David M.; and Mulfort, Karen L., "Molecularly Functionalized Electrodes for Efficient Electrochemical Water Remediation" (2021). Faculty Publications. 3868.
https://digitalcommons.njit.edu/fac_pubs/3868
