Facile All-Optical Method for In Situ Detection of Low Amounts of Ammonia

Yuanchao Liu; Tristan Asset; Yechuan Chen; Eamonn Murphy; Eric O. Potma; Ivana Matanovic; Dmitry A. Fishman; Plamen Atanassov

iScience (Nov 2020)

Facile All-Optical Method for In Situ Detection of Low Amounts of Ammonia

Yuanchao Liu,
Tristan Asset,
Yechuan Chen,
Eamonn Murphy,
Eric O. Potma,
Ivana Matanovic,
Dmitry A. Fishman,
Plamen Atanassov

Affiliations

Yuanchao Liu: Department of Chemical & Biomolecular Engineering, National Fuel Cell Research Center (NFCRC), University of California, Irvine, CA 92697, USA
Tristan Asset: Department of Chemical & Biomolecular Engineering, National Fuel Cell Research Center (NFCRC), University of California, Irvine, CA 92697, USA
Yechuan Chen: Department of Chemical & Biomolecular Engineering, National Fuel Cell Research Center (NFCRC), University of California, Irvine, CA 92697, USA
Eamonn Murphy: Department of Chemical & Biomolecular Engineering, National Fuel Cell Research Center (NFCRC), University of California, Irvine, CA 92697, USA
Eric O. Potma: Department of Chemistry, University of California, Irvine, CA 92697, USA
Ivana Matanovic: Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM 87131, USA
Dmitry A. Fishman: Department of Chemistry, University of California, Irvine, CA 92697, USA; Corresponding author
Plamen Atanassov: Department of Chemical & Biomolecular Engineering, National Fuel Cell Research Center (NFCRC), University of California, Irvine, CA 92697, USA

Journal volume & issue: Vol. 23, no. 11
p. 101757

Abstract

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Summary: As a key precursor for nitrogenous compounds and fertilizer, ammonia affects our lives in numerous ways. Rapid and sensitive detection of ammonia is essential, both in environmental monitoring and in process control for industrial production. Here we report a novel and nonperturbative method that allows rapid detection of ammonia at low concentrations, based on the all-optical detection of surface-enhanced Raman signals. We show that this simple and affordable approach enables ammonia probing at selected regions of interest with high spatial resolution, making in situ and operando observations possible.

Published in iScience

ISSN: 2589-0042 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Science
Website: http://www.cell.com/iscience/home

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