From the journal:

Chemical Communications

Using precise gas exposures to resolve surface site filling in diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS)†

Audrey Dannar, ORCID logo ‡a   Hadley Nunn,‡ab   Christopher R. O’Connor ORCID logo a  and  Christian Reece ORCID logo *a  

* Corresponding authors

a Rowland Institute at Harvard, Harvard University, Cambridge, MA, USA
E-mail: christianreece@fas.harvard.edu

b Department of Chemistry, Tufts University, Medford, MA, USA

Abstract

In this communication we report how to assemble a DRIFTS system that can precisely control the pressure in the cell from <10−6 Torr to atmospheric pressure using easily accessible components. As a proof-of-principle we adsorb and react CO over a Pd/Al2O3 catalyst where we can observe pressure, temperature, and reaction-dependent preferential binding to adsorption sites.

Graphical abstract: Using precise gas exposures to resolve surface site filling in diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS)

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Article information

DOI
https://doi.org/10.1039/D5CC03213J
Article type
Communication
Submitted
07 Jun 2025
Accepted
10 Jul 2025
First published
08 Aug 2025
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2025, Advance Article

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Using precise gas exposures to resolve surface site filling in diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS)

A. Dannar, H. Nunn, C. R. O’Connor and C. Reece, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC03213J

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