Journal
NANOMATERIALS
Volume 11, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/nano11112957
Keywords
hydrogen storage; carbon nanotubes; nanomaterials; thin films
Categories
Funding
- Deanship of Scientific Research (DSR) at King Abdulaziz University, Jeddah, Saudi Arabia [FP-77-43]
- King Abdulaziz City for Science and Technology (KACST) [1-18-01-009-0079]
Ask authors/readers for more resources
A composite film of graphene and fibrous multiwall carbon nanotubes was prepared by plasma-enhanced chemical vapor deposition, with the addition of PdMg alloy nanoparticles leading to improved hydrogen storage capacity and absorption-desorption kinetics. The fibrous structure of the MWCNTs alongside the graphene sheets provided a large active region for hydrogen reaction, while the catalytic nature of Pd and high absorption capacity of Mg nanoparticles enhanced the reaction kinetics and hydrogen content.
We describe a graphene and fibrous multiwall carbon nanotubes (f-MWCNT) composite film prepared by plasma-enhanced chemical vapor deposition for use as a suitable and possible candidate of hydrogen storage materials. A high storage capacity of 5.53 wt% has been obtained with improved kinetics. The addition of binary PdMg alloy nanoparticles to the surface of graphene-fibrous nanotubes composite films raised the storage capacity by 53% compared to the film without PdMg decorated nanoparticles. Additionally, the graphene/f-MWCNT composite film decorated with PdMg nanoparticles exhibited an enhanced hydrogen absorption-desorption kinetics. The fibrous structure of the MWCNTs, alongside graphene sheets within the film, creates an enormous active region site for hydrogen reaction. The addition of PdMg nanoparticles enhanced the reaction kinetics due to the catalytic nature of Pd, and increased the hydrogen content due to the high absorption capacity of Mg nanoparticles. The combination of Pd and Mg in a binary alloy nanoparticle enhanced the hydrogen capacity and absorption-desorption kinetics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available