MoS2 -Carbon Nanotube Porous 3 D Network for Enhanced Oxygen Reduction Reaction.
Cheesung LeeSehmus OzdenChandra S TewariOk-Kyung ParkRobert VajtaiKuntal ChatterjeePulickel M AjayanPublished in: ChemSusChem (2018)
Future generation power requirement triggers the increasing search for electrocatalysts towards oxygen reduction, which is the pivotal part to enhance the activity of metal-air batteries and fuel cells. The present article reports a novel 3 D composite structure weaving 1 D carbon nanotubes (CNT) and 2 D MoS2 nanosheets. The MoS2 -CNT composite exhibits excellent electrocatalytic activity for the oxygen reduction reaction (ORR) in alkaline environment. Measurements show better methanol immunity and higher durability than Pt/C, which is considered the state-of-the-art catalyst for ORR. Experimental results suggest that the hybridization of 1 D functionalized multiwalled CNTs (MWCNTs) and exfoliated 2 D MoS2 nanosheet results significant synergistic effect, which greatly promotes the ORR activity. This work presents a new avenue to rationally design a 3 D porous composite out of 1 D and 2 D interlaced components and demonstrate appreciable electrochemical performance of the materials towards ORR activity for fuel cells as well as metal-air batteries.
Keyphrases
- carbon nanotubes
- reduced graphene oxide
- quantum dots
- highly efficient
- room temperature
- induced apoptosis
- metal organic framework
- gold nanoparticles
- cell cycle arrest
- ionic liquid
- emergency department
- endoplasmic reticulum stress
- cell proliferation
- high resolution
- simultaneous determination
- label free
- liquid chromatography