Research & Development World

  • R&D World Home
  • Topics
    • Aerospace
    • Automotive
    • Biotech
    • Careers
    • Chemistry
    • Environment
    • Energy
    • Life Science
    • Material Science
    • R&D Management
    • Physics
  • Technology
    • 3D Printing
    • A.I./Robotics
    • Software
    • Battery Technology
    • Controlled Environments
      • Cleanrooms
      • Graphene
      • Lasers
      • Regulations/Standards
      • Sensors
    • Imaging
    • Nanotechnology
    • Scientific Computing
      • Big Data
      • HPC/Supercomputing
      • Informatics
      • Security
    • Semiconductors
  • R&D Market Pulse
  • R&D 100
    • Call for Nominations: The 2025 R&D 100 Awards
    • R&D 100 Awards Event
    • R&D 100 Submissions
    • Winner Archive
    • Explore the 2024 R&D 100 award winners and finalists
  • Resources
    • Research Reports
    • Digital Issues
    • R&D Index
    • Subscribe
    • Video
    • Webinars
  • Global Funding Forecast
  • Top Labs
  • Advertise
  • SUBSCRIBE

Cheap catalyst gets expensive accessory

By R&D Editors | October 15, 2014

While iron catalysts are an inexpensive way to remove oxygen from plant-based materials, the catalyst is not very active and can be readily deactivated due to rusting or oxidation by the water that comes part and parcel with biofuels production. Precious metal catalysts such as palladium aren’t readily oxidized, but they are not efficient in removing oxygen from plant-based materials (low catalyst activity and high hydrogen consumption), on top of the fact that the metal is prohibitively expensive. But adding just a touch of palladium to the iron produces a catalyst that quickly removes oxygen atoms, easily releases the desired products, and doesn’t rust, according to scientists at Pacific Northwest National Laboratory (PNNL) and Washington State University (WSU).

“The synergy between the palladium and the iron is incredible,” said Dr. Yong Wang, who led the two papers featured on the cover of ACS Catalysis. “When combined, the catalyst is far better than the metals alone in terms of activity, stability, and selectivity.”

Wang has a joint appointment with PNNL and WSU. At PNNL, he is an associate director at the Institute for Integrated Catalysis; at WSU, he is the Voiland Distinguished Professor.

To create drop-in biofuels, substitutes for gasoline, diesel fuel, and jet fuel that don’t require changing today’s fossil fuel based infrastructure, scientists need fast, efficient catalysts to remove oxygen atoms from lignin, which is abundant in plants. High levels of oxygen create energy-poor fuel and would harm systems that deal with fossil fuels. This study shows how a two-metal approach could improve the catalyst and minimize the amount of hydrogen needed, along with the associated costs.

“With biofuels, you need to remove as much oxygen as possible to gain energy density,” said Wang. “Of course, in the process, you want to minimize the costs of oxygen removal. In this case, you minimize hydrogen consumption and increase the overall activity and gain high yields to desired fuel products.”

Methods: The team combined experimental and theory approaches to determine how the atoms on the catalyst’s surface interacted with m-creosol, a model compound of lignin derivatives. The team employed advanced instruments, including high-resolution transmission electron microscopy, x-ray photoelectron spectroscopy, and extended x-ray absorption fine structure spectroscopy. The team also used complex calculations to interpret the experimental view.

Adding extremely small amounts of palladium to the iron catalyst promoted hydrogen coverage on the iron surface, making the hydrodexoygenation reaction highly favored. The palladium also prevented the iron from being oxidized by water. The palladium further enhanced the release of the desired aromatic molecules. The result: less hydrogen is consumed to remove the oxygen. “By adding the palladium, we could potentially use metals such as iron, which are cheaper and function at better rates with high yields than palladium or iron alone,” said Wang.

What’s next? The team is designing catalysts to work under wetter conditions. “Our work involved model compounds; we want to study more realistic conditions where you have more water and you still want to remove as much oxygen as possible,” said Wang.

Associated publications:

Synergistic Catalysis between Pd and Fe in Gas Phase Hydrodeoxygenation of m-Cresol

Enhanced Fe2O3 Reducibility via Surface Modification with Pd: Characterizing the Synergy within Pd/Fe Catalysts for Hydrodeoxygenation Reactions

Institute for Integrated Catalysis, Washington State Univ.

Source: Pacific Northwest National Laboratory

Related Articles Read More >

DNA microscope offers new 3D view of organisms from the inside out
A tale of two industries: How manufacturing and medical imaging experts can learn from each other
Dark energy camera captures the glittering galaxies of the Antlia Cluster
R&D 100 winner of the day: Automated digital slide scanner, MSP 320
rd newsletter
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, trends, and strategies in Research & Development.
RD 25 Power Index

R&D World Digital Issues

Fall 2024 issue

Browse the most current issue of R&D World and back issues in an easy to use high quality format. Clip, share and download with the leading R&D magazine today.

Research & Development World
  • Subscribe to R&D World Magazine
  • Enews Sign Up
  • Contact Us
  • About Us
  • Drug Discovery & Development
  • Pharmaceutical Processing
  • Global Funding Forecast

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search R&D World

  • R&D World Home
  • Topics
    • Aerospace
    • Automotive
    • Biotech
    • Careers
    • Chemistry
    • Environment
    • Energy
    • Life Science
    • Material Science
    • R&D Management
    • Physics
  • Technology
    • 3D Printing
    • A.I./Robotics
    • Software
    • Battery Technology
    • Controlled Environments
      • Cleanrooms
      • Graphene
      • Lasers
      • Regulations/Standards
      • Sensors
    • Imaging
    • Nanotechnology
    • Scientific Computing
      • Big Data
      • HPC/Supercomputing
      • Informatics
      • Security
    • Semiconductors
  • R&D Market Pulse
  • R&D 100
    • Call for Nominations: The 2025 R&D 100 Awards
    • R&D 100 Awards Event
    • R&D 100 Submissions
    • Winner Archive
    • Explore the 2024 R&D 100 award winners and finalists
  • Resources
    • Research Reports
    • Digital Issues
    • R&D Index
    • Subscribe
    • Video
    • Webinars
  • Global Funding Forecast
  • Top Labs
  • Advertise
  • SUBSCRIBE