Role of Transition Metals in Metal-Organic Frameworks as Nanoporous Ion Emitters for Thermal Ionization Mass Spectrometry

Dushyant Barpaga; Ji-Hye Seo; Abhishek Kumar; Kyle A. Makovsky; Michael A. Sinnwell; Eirik J. Krogstad; Kelly Mchugh

doi:10.1021/acsami.3c09902

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Role of Transition Metals in Metal-Organic Frameworks as Nanoporous Ion Emitters for Thermal Ionization Mass Spectrometry

Journal article

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Role of Transition Metals in Metal-Organic Frameworks as Nanoporous Ion Emitters for Thermal Ionization Mass Spectrometry

Dushyant Barpaga, Ji-Hye Seo, Abhishek Kumar, Kyle A. Makovsky, Michael A. Sinnwell, Eirik J. Krogstad and Kelly Mchugh

ACS applied materials & interfaces, Vol.15(38), pp.45005-45015

09/27/2023

DOI: 10.1021/acsami.3c09902

PMID: 37722003

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https://www.osti.gov/servlets/purl/2008201View

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Abstract

Thermal ionization mass spectrometry is a powerful analytical technique that allows for precise determination of isotopic ratios. Analysis of low abundance samples, however, can be limited by the ionization efficiency. Following an investigation into a new type of metal-organic hybrid material, nanoporous ion emitters (nano-PIEs), devised to promote the emission of analyte ions and reduce traditional sample loading challenges, this work evaluates the impact that changing the metal in the material has on the ionization of uranium (U). Being derived from metal-organic frameworks (MOFs), nano-PIEs inherit the tunability of their parent MOFs. The MOF-74 series has been well studied for probing the impact various framework metals (i.e., Mg, Mn, Co, Ni, Cu, Zn, and Cd) have on material properties, and thus, a series of nano-PIEs with different metals were derived from this isoreticular MOF series. Trends in ionization efficiency were studied as a function of ionization potential, volatility, and work function of the framework metals to gain a better understanding of the mechanism of analyte ionization. This study finds a correlation between the analyte ionization efficiency and nano-PIE framework metal volatility that is attributed to its tunable thermal stability and degradation behavior.

Materials Science

Technology

Materials Science, Multidisciplinary

Nanoscience & Nanotechnology

Science & Technology

Science & Technology - Other Topics

Details

Title: Subtitle: Role of Transition Metals in Metal-Organic Frameworks as Nanoporous Ion Emitters for Thermal Ionization Mass Spectrometry
Creators: Dushyant Barpaga - Pacific Northwest National Laboratory
Ji-Hye Seo - Pacific Northwest National Laboratory
Abhishek Kumar - Pacific Northwest National Laboratory
Kyle A. Makovsky - Pacific Northwest National Laboratory
Michael A. Sinnwell - University of Iowa
Eirik J. Krogstad - Pacific Northwest National Laboratory
Kelly Mchugh - Pacific Northwest National Laboratory
Resource Type: Journal article
Publication Details: ACS applied materials & interfaces, Vol.15(38), pp.45005-45015
DOI: 10.1021/acsami.3c09902
PMID: 37722003
NLM abbreviation: ACS Appl Mater Interfaces
ISSN: 1944-8244
eISSN: 1944-8252
Publisher: Amer Chemical Soc
Number of pages: 11
Grant note: NNSA Office of Defense Nuclear Nonproliferation Research and Development
Language: English
Date published: 09/27/2023
Academic Unit: Chemistry
Record Identifier: 9984936508102771

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