14 Optimization of Na loading on Pt/m-ZrO2 for enhancing H2 selectivity in formaldehyde steam reforming

Primary Author

Elijah Garcia

Additional Author(s)

Zahra Rajabi, Caleb Watson

Faculty Mentor

Dr. Gary Jacobs

Additional Mentor(s)

Dr. Michela Martinelli

Abstract

Liquid chemical carriers such as formaldehyde and methanol can be synthesized from synthesis gas (CO and H2) produced from steam reforming and partial oxidation of methane or bioethanol, or from the gasification of coal or biomass. The transition from nonrenewable resources to more environmentally friendly alternatives is vital moving forward as fossil resources are continuously depleting. Hydrogen storage is an issue due to its low energy per unit volume in the vapor phase, leading toward researching liquid chemical carriers of hydrogen, which can readily generate hydrogen through reaction with steam. We focus on heterogeneous catalysis, where the catalyst and the reactants are not present in the same phase. The optimal sodium loading is likely ~1.8 wt.% for the tested catalysts, based on the absorbance of the formate band which shifts at the optimal loading and the TPD-MS data showing the lowest temperature at which H2 is released. The electronic weakening of the formate C-H bond will likely lead to a higher selectivity of H2 during FSR as revealed by infrared spectroscopy and TPD-MS results.

Presentation

1 thought on “14 Optimization of Na loading on Pt/m-ZrO2 for enhancing H2 selectivity in formaldehyde steam reforming”

  1. Great display of the information on the powerpoint. I was unable to hear the audio so just read from the slide presented. You made the following of the material easy to follow and I especially like description of each of the figures although I am unable to comprehend some of the figures (what they are showing; besides understanding the captions for each). Just a little bit of advice, always be aware of your audience and be able to explain the importance of it (see the ‘What I learned’ section). What does this mean from what you learned?

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