Abstract
A novel method is described for producing an atomic hydrogen material at low pressure, thus far only in microscopic amounts. Hydrogen gas is absorbed in a K-promoted iron oxide catalyst (a hydrogen-abstraction catalyst) and desorbs as clusters containing H atoms at low pressure and at a temperature of <900 K. The clusters are of the Rydberg matter (RM) type and de-excite from their initial excited state to their lowest state of excitation with a final interatomic distance of 150 pm, which is measured in the experiments. The atomic hydrogen material thus formed is concluded to be metallic by comparison with shock-wave compression experiments. A reliable value of the atomic binding energy is not known from experiments, but a theoretical tentative value for the bonding distance of 150 pm is 163 kJ mol-1. With such a binding energy, the H(RM) or H(l) material has the highest energy content of any fuel (except nuclear fuel) at 175 MJ kg-1 and a density of 0.5−0.7 kg dm-3 depending upon the exact structure. The...
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