"Catalytic Enhancement of Inductively Heated Fe O Nanoparticles by Remo" by Natalia S. Moura, Khashayar R. Bajgiran et al.

Faculty Publications

Title

Catalytic Enhancement of Inductively Heated Fe O Nanoparticles by Removal of Surface Ligands

Authors

Natalia S. Moura, Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA.
Khashayar R. Bajgiran, Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA.
Cameron L. Roman, Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA.
Luke Daemen, Spallation Neutron Source, Oak Ridge National Lab, PO. Box 2008, Oak Ridge, TN 37831, USA.
Yongqiang Cheng, Spallation Neutron Source, Oak Ridge National Lab, PO. Box 2008, Oak Ridge, TN 37831, USA.
Jimmy Lawrence, Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA.
Adam T. Melvin, Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA.
Kerry M. Dooley, Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA.
James A. Dorman, Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA.

Document Type

Article

Publication Date

2-18-2021

Abstract

Heat management in catalysis is limited by each material's heat transfer efficiencies, resulting in energy losses despite current thermal engineering strategies. In contrast, induction heating of magnetic nanoparticles (NPs) generates heat at the surface of the catalyst where the reaction occurs, reducing waste heat via dissipation. However, the synthesis of magnetic NPs with optimal heat generation requires interfacial ligands, such as oleic acid, which act as heat sinks. Surface treatments using tetramethylammonium hydroxide (TMAOH) or pyridine are used to remove these ligands before applications in hydrophilic media. In this study, Fe O NPs are surface treated to study the effect of induction heating on the catalytic oxidation of 1-octanol. Whereas TMAOH was unsuccessful in removing oleic acid, pyridine treatment resulted in a roughly 2.5-fold increase in heat generation and product yield. Therefore, efficient surfactant removal has profound implications in induction heating catalysis by increasing the heat transfer and available surface sites.

Publication Source (Journal or Book title)

ChemSusChem

First Page

1122

Last Page

1130

Recommended Citation

Moura, N. S., Bajgiran, K. R., Roman, C. L., Daemen, L., Cheng, Y., Lawrence, J., Melvin, A. T., Dooley, K. M., & Dorman, J. A. (2021). Catalytic Enhancement of Inductively Heated Fe O Nanoparticles by Removal of Surface Ligands. ChemSusChem, 14 (4), 1122-1130. https://doi.org/10.1002/cssc.202002775

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