hydrogen cycle


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hydrogen cycle

[′hī·drə·jən ‚sī·kəl]
(chemistry)
The complete process of a cation-exchange operation in which the adsorbent is used in the hydrogen or free acid form.
References in periodicals archive ?
The researchers noted that there is "uncertainty" about the effects of hydrogen gas on the atmosphere because "scientists still have a limited understanding of the hydrogen cycle.
The end result would be a clean, natural hydrogen cycle, with renewable energy used to split water into oxygen and hydrogen, with the latter used in fuel cells to produce electricity and water--which then would be available to repeat the process.
The two satellites would be equipped with identical instrument suites that would be capable of measuring the lunar hydrogen cycles at both altitudes.