Electrospun Pt-TiO₂ Nanofibers Doped with HPA for Catalytic Hydrodeoxygenation

Authors

Amos Taiswa, Montana Technological University
Randy L. Maglinao, Montana State University - Northern
Jessica M. Andriolo, Montana Technological University
Sandeep Kumar, Old Dominion UniversityFollow
Jack L. Skinner, Montana Technological University

Document Type

Article

Publication Date

2024

DOI

10.1038/s41598-024-77103-4

Publication Title

Scientific Reports

Volume

14

Issue

1

Pages

24706 (1-11)

Abstract

Electrospinning is utilized to fabricate catalytic nanofiber scaffold for biocrude upgrading in hydrodeoxygenation (HDO) following computational studies suggesting the need for nano-catalysts for efficient HDO conversion and selectivity. Here, Pt-TiO₂ nanofibers are fabricated through electrospinning, followed by wet impregnation with a heteropoly acid (HPA), tungstosilicic acid. Intensive heat treatments were incorporated during and after processes to obtain a HPA doped Pt-TiO₂ nano-catalyst. Catalytic HDO was performed in a batch reactor with phenol as the raw biocrude dissolved in hexadecane. The HPA doped Pt-TiO₂ catalyst demonstrated promising HDO performance of 37.2% conversion and a 78.9% selectivity to oxygen free benzene and the remainder 21.1% as diphenyl ester as a result of esterification by acidic components of the catalyst. Additionally, BET surface area characterization show a low surface area 16.9 m² g⁻¹ significantly lower than existing commercial catalysts and a mesoporous nature suitable for selectivity. The presence of HPA on the anatase nanofiber compensated for low platinum nanoparticles crystallinity on the nanofibers. This work might create needed alternatives for preparing HDO catalysts for efficient aromatics production.

Rights

© 2024 The Authors.

This article is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original authors and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

Data Availability

Article states: "The datasets used and/or analyzed during the current study available from the corresponding author on reasonable request."

ORCID

0000-0003-3173-6101 (Kumar)

Original Publication Citation

Taiswa, A., Maglinao, R. L., Andriolo, J. M., Kumar, S., & Skinner, J. L. (2024). Electrospun Pt-TiO₂ nanofibers doped with HPA for catalytic hydrodeoxygenation. Scientific Reports, 14(1), 1-11, Article 24706. https://doi.org/10.1038/s41598-024-77103-4

Repository Citation

Taiswa, Amos; Maglinao, Randy L.; Andriolo, Jessica M.; Kumar, Sandeep; and Skinner, Jack L., "Electrospun Pt-TiO₂ Nanofibers Doped with HPA for Catalytic Hydrodeoxygenation" (2024). Civil & Environmental Engineering Faculty Publications. 116.
https://digitalcommons.odu.edu/cee_fac_pubs/116