Previous literature has identified vertical molybdenum sulfide (MoS2) as a high performing heterogeneous electrocatalyst for hydrogen evolution reactions (HER) with high stability and precious metal free composition.In this work, high density vertical MoS2 was synthesized through CVD method on economical substrates (molybdenum and carbon foil) to facilitate future scale-up.Characterization by SEM, raman spectroscopy, and XRD confirms the growth of MoS2. Electrochemical measurements reveal that the MoS2 produces an above-average exchange current density of 3.29 * 10-5 A/cm2. The MoS2 has a turnover frequency (TOF) of 35 s-1 at -0.25V demonstrating a high intrinsic catalytic activity by the synthesized nanoflakes on both carbon and molybdenum foil.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Jacobs, Jeremy Andrew

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-032620-212331

Advisor

• Rao, Pratap M.

Year

• 2020

Date created

• 2020-03-26

Resource type

• Major Qualifying Project

Major

• Chemical Engineering

Rights statement

• In Copyright

License

• All rights reserved