Journal article
Metal-Free Electrocatalysts for Oxygen Reduction to Hydrogen Peroxide
Advanced energy and sustainability research, Vol.2(7), p.n/a
07/01/2021
DOI: 10.1002/aesr.202100021
Abstract
Hydrogen peroxide (H2O2), as an environmentally friendly and highly efficient oxidation reagent, is now widely and increasingly used in many areas. The traditional anthraquinone synthesis process, however, is energy and capital intensive with low efficiency. Electrochemically reducing oxygen (O-2) to H2O2 with metal-free catalysts is considered a promising alternative. This work describes the two-electron oxygen reduction process from both thermodynamic and kinetic aspects and summarizes the designing rules for effective H2O2 formation catalysts. This includes tuning the binding energy of the intermediate species, the concentration of dissociation active sites, and adjusting the dielectric constant of solvents. These principles are successfully applied to the design of various metal-free catalysts by proper structure engineering and heteroatom doping, which shows both high activity and efficiency. Furthermore, pH and temperature effects are presented with a view toward reaction optimization. An outlook of future challenges is also discussed.
Details
- Title: Subtitle
- Metal-Free Electrocatalysts for Oxygen Reduction to Hydrogen Peroxide
- Creators
- Zhe Wang - Rice UniversityDustin K. James - Rice UniversityJames M. Tour - Rice University
- Resource Type
- Journal article
- Publication Details
- Advanced energy and sustainability research, Vol.2(7), p.n/a
- Publisher
- Wiley
- DOI
- 10.1002/aesr.202100021
- ISSN
- 2699-9412
- eISSN
- 2699-9412
- Number of pages
- 11
- Grant note
- FA9550-19-1-0296 / Air Force Office of Scientific Research; United States Department of Defense; Air Force Office of Scientific Research (AFOSR)
- Language
- English
- Date published
- 07/01/2021
- Academic Unit
- Chemical and Biochemical Engineering
- Record Identifier
- 9984696791502771
Metrics
1 Record Views