Szczegóły publikacji
Opis bibliograficzny
Thermal effects accompanying hydrogen accumulation in carbon and coal structures / Anna Pajdak, Adam Dębski, Mateusz Kudasik, Norbert SKOCZYLAS, Wojciech Maziarz, Władysław Gąsior // Archives of Mining Sciences = Archiwum Górnictwa ; ISSN 0860-7001 . — 2025 — vol. 70 no. 4, s. 575-596. — Bibliogr. s. 593-596, Abstr. — Publikacja dostępna online od: 2025-12-17
Autorzy (6)
- Pajdak Anna
- Dębski Adam
- Kudasik Mateusz
- AGHSkoczylas Norbert
- Maziarz Wojciech
- Gąsior Władysław
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 166240 |
|---|---|
| Data dodania do BaDAP | 2026-03-11 |
| Tekst źródłowy | URL |
| DOI | 10.24425/ams.2025.157448 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Archives of Mining Sciences = Archiwum Górnictwa |
Abstract
The article presents a comprehensive analysis of hydrogen accumulation properties on various carbon and coal structures, including carbon nanotubes of different diameters, reduced graphene oxide, activated carbon, and two types of hard coal. The study involved porous structure characterization using volumetric and microscopic techniques, measurements of hydrogen adsorption isotherms using the Sieverts apparatus and determination of the isosteric heat of adsorption. The highest adsorption capacities in relation to hydrogen were observed at low temperatures and low pressures, confirming that physisorption is the dominant adsorption mechanism in the investigated materials. Activated carbon and carbon nanotubes exhibited the highest adsorption capacities - up to 11.4 mmol/g and 3.3 mmol/g, respectively - demonstrating their potential for low-temperature hydrogen storage applications. In contrast, hard coals showed lower capacities, ranging from 0.9 mmol/g to 1.54 mmol/g. The isosteric heat of adsorption (Qsi) at the initial stages of adsorption varied between 6.5 kJ/mol and 13.2 kJ/mol, decreasing exponentially as surface coverage progressed. The greatest differences in heat distribution were observed in materials with strongly heterogeneous surface characteristics. For the coal samples, Qsi values ranged from 8.4 to 9.1 kJ/mol.
