Abstract
Developing efficient storage materials is critical for advancing the hydrogen economy. In this study, we aim to utilize plant-based biomass as a sustainable source for fabricating porous carbon (PC) and subsequently employing it for hydrogen adsorption. For the first time, we synthesize highly porous carbon materials from pistachio shells as precursor materials for efficient hydrogen storage. Experiments were conducted to chemically activate pistachio shells using two different agents, sodium chloride (NaCl) and potassium chloride (KCl), at varying ratios. This study evaluates the effectiveness of these chemical activation agents in enhancing the surface area of PC and, consequently, its hydrogen adsorption properties at 77 K. The findings reveal that the specific surface area (SSA) of the activated carbons (ACs) increased with the activating agent ratio, reaching a maximum of 579.4 m2 g−1, with a total pore volume of 0.340 cm3 g−1. The highest recorded hydrogen adsorption capacity was 4.6 mmol g−1 (1.99 wt%) at 120 kPa and approximately 15.02 mmol g−1 (5.14 wt%) at 5192 kPa. These results confirm that biomass-derived PC is a promising and eco-friendly alternative for hydrogen storage applications.
Document Type
Journal Article
Volume
119
Funding Information
Future Energy Exports Cooperative Research Centre / Australian Government's Cooperative Research Centre Program / International Hydrogen Research Collaboration Grant (C041552) / Australian Research Council
School
Centre for Sustainable Energy and Resources / School of Engineering
Grant Number
ARC Number : LP200301659
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Publisher
Elsevier
Identifier
Alireza Keshavarz: https://orcid.org/0000-0002-8091-961X
Stefan Iglauer: https://orcid.org/0000-0002-8080-1590
Tawanda Matamba: https://orcid.org/0000-0002-8703-2755
Comments
Elyasi, S., Hameed, N., Mahon, P. J., Juodkazis, S., Keshavarz, A., Iglauer, S., ... & Salim, N. V. (2025). Analysis of pistachio shell-derived activated porous carbon materials for hydrogen adsorption. International Journal of Hydrogen Energy, 119, 260-270. https://doi.org/10.1016/j.ijhydene.2025.03.028