I want to know the answer to the following question:
What are some catalysts used in hydrogen cooling
All the background I'm provided with is that "The ortho/para ratio in condensed H2 is an important consideration in the preparation and storage of liquid hydrogen: the conversion from ortho to para is exothermic and produces enough heat to evaporate some of the hydrogen liquid, leading to loss of liquefied material.". Is that enough to answer the question?