Abstract
Abstract Catalyzed ortho-parahydrogen conversion rates have been measured on both insulating and conducting types of europium monoxide over the temperature range 65–400 K. There was no rate anomaly in the neighborhood of the ferromagnetic-paramagnetic phase transition. A positive extrinsic field magnetocatalytic effect was observed in the paramagnetic phase but little effect was found below the Curie point. Chromium dioxide proved to be too reactive for measurements to be made near the Curie point. Catalytic activity was found, but no extrinsic field effect at room temperature. The theoretical implications of these results are discussed.
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