Normalizing Hetereogeneous Electrocatalytic and Photocatalytic Rates

Weber, Robert S.

doi:10.1021/acsomega.8b03377

Title: Normalizing Hetereogeneous Electrocatalytic and Photocatalytic Rates

Abstract

This short essay urges the community of those who study electrocatalysis and photocatalysis to report measures of the number of active sites in heterogeneous catalysts (especially the redox sites in an electrocatalyst) and the number of photons involved in photoconversions. An example of the former is the use of CO stripping for catalysts containing platinum-group metals and N2O titration to count redox sites in supported electrocatalysts containing base metals that do not strongly chemisorb CO or hydrogen. A minimal example of the latter is to report energy density as a way to bridge between batch photolysis and flow photoinitiated reactions.

Authors:

^[1]

Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999,MS-IN K2-12, Richland, Washington 99362, United States

Publication Date:: Fri Feb 22 00:00:00 EST 2019

Research Org.:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1495879

Alternate Identifier(s):: OSTI ID: 1501938; OSTI ID: 1508760

Report Number(s):: PNNL-SA-140084
Journal ID: ISSN 2470-1343

Grant/Contract Number:: AC05-76RL01830

Resource Type:: Published Article

Journal Name:: ACS Omega

Additional Journal Information:: Journal Name: ACS Omega Journal Volume: 4 Journal Issue: 2; Journal ID: ISSN 2470-1343

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Weber, Robert S. Normalizing Hetereogeneous Electrocatalytic and Photocatalytic Rates.  United States: N. p., 2019. 
Web.  doi:10.1021/acsomega.8b03377.

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                    Weber, Robert S. Normalizing Hetereogeneous Electrocatalytic and Photocatalytic Rates.  United States.  https://doi.org/10.1021/acsomega.8b03377

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                    Weber, Robert S. Fri .  
"Normalizing Hetereogeneous Electrocatalytic and Photocatalytic Rates".  United States.  https://doi.org/10.1021/acsomega.8b03377.

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@article{osti_1495879,

  title        = {Normalizing Hetereogeneous Electrocatalytic and Photocatalytic Rates},

  author       = {Weber, Robert S.},

  abstractNote = {This short essay urges the community of those who study electrocatalysis and photocatalysis to report measures of the number of active sites in heterogeneous catalysts (especially the redox sites in an electrocatalyst) and the number of photons involved in photoconversions. An example of the former is the use of CO stripping for catalysts containing platinum-group metals and N2O titration to count redox sites in supported electrocatalysts containing base metals that do not strongly chemisorb CO or hydrogen. A minimal example of the latter is to report energy density as a way to bridge between batch photolysis and flow photoinitiated reactions.},

  doi          = {10.1021/acsomega.8b03377},

  journal      = {ACS Omega},

  number       = 2,

  volume       = 4,

  place        = {United States},

  year         = {Fri Feb 22 00:00:00 EST 2019},

  month        = {Fri Feb 22 00:00:00 EST 2019}

}

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Figure 1: Elements likely susceptible to site-counting by N₂O titration followed by electrochemical stripping of the deposited O.

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