albyatei ameer, Zainalabddeen assaflly I. Theoretical study of hydrogen adsorption on graphene nanostructures functionalized with nickel for solid state hydrogen storage. EDUSJ [Internet]. 2021 Jun. 1 [cited 2025 Aug. 7];30(2):19-32. Available from: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/24498