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Interfacial contributions of H2O2 decomposition-induced reaction current on mesoporous Pt/TiO2 systems

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journal contribution
posted on 03.07.2018, 00:00 by NJ Ray, VV Styrov, EG Karpov
We report on conversion of energy released due to chemical reactions into current for the decomposition of aqueous hydrogen peroxide solution on single phases Pt and TiO2, in addition to Pt and TiO2 simultaneously. We observe that H2O2 decomposition-induced current on TiO2 drastically overshadows the current generated by H2O2 decomposition on Pt. Photo-effects avoided, H2O2 decomposition was found to yield a conversion efficiency of 10−3 electrons generated per H2O2 molecule. Further understanding of chemical reaction-induced current shows promise as a metric with which the surface reaction may be monitored and could be greatly extended into the field of analytical chemistry. © 2017 Elsevier B.V.

Funding

This research was supported by the Center for Nanoscale Materials at Argonne National Laboratory. Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.

History

Publisher

Elsevier

Language

en_US

issn

00092614

Issue date

01/01/2017

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