Novel Catalysts for Ammonia Cracking and Synthesis

Presented on November 1, 2017 during the NH3 Fuel Conference 2017

Authors Bill David Josh Makepeace Oxford University Rutherford Appleton Laboratory

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Abstract

The most effective ammonia cracking catalysts are currently based on rare metals such as ruthenium and cobalt. While iron can efficiently crack ammonia at 600 °C, it is desirable to develop similarly inexpensive catalysts that are effective at lower temperatures between 350 °C and 500 °C. In this presentation, a new family of imide-based catalysts are described that crack ammonia around 400 °C to 550 °C. These materials do not behave as conventional surface-based catalysts and offer an affordable route for on-board cracking of ammonia for hydrogen fuel-cell cars. The operational parameters of a small 50W lab-based demonstrator will be described and the presentation will conclude with a discussion of the promise of these materials as ammonia synthesis catalysts.

Topics Catalysts Cracking Ammonia

Authors bill.david@stfc.ac.uk j.w.makepeace@bham.ac.uk thomas.wood@stfc.ac.uk

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