INVESTIGATING HYDROGEN STORAGE BEHAVIOR OF CARBON NANOTUBES AT AMBIENT TEMPERATURE AND ABOVE BY ION BEAM ANALYSIS
Source abstract
Abstract
Hydrogen storage capacity of a carbon nanotube (CNT) sample is investigated using Elastic Recoil Detection Analysis (ERDA) at constant hydrogen uptake pressure of 5 bar and different adsorption temperatures within 30°C–500°C. The results of hydrogen concentration versus temperature revealed three distinct temperature intervals in which a certain adsorption or desorption mechanism is dominant. Moreover, the results showed that hydrogen storage capacity of CNTs at the applied conditions of pressure and temperature is about 0.1 wt.% which is well below the DOE requirements for a viable hydrogen storage system. The physidesorption activation energy is calculated using the Arrhenius plot to be 6 kJmol-1.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Hydrogen Storage and Materials · Boron and Carbon Nanomaterials Research · Carbon Nanotubes in Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Agricultural Medical and Industrial Research School, Nuclear Science and Technology Research Institute, P. O. Box 31485-498, Karaj, Iran
Nuclear Science Research School, Nuclear Science and Technology Research Institute, P. O. Box 14395-836, Tehran, Iran
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