Journal
ENERGY TECHNOLOGY
Volume 9, Issue 7, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.202100112
Keywords
atomic layer deposition; Co3O4 nanoneedles array; electrocatalysts; methanol oxidation reactions; NiO
Categories
Funding
- National Natural Science Foundation of China [21775078, 21905149]
- Youth Innovation Team Project of Shandong Provincial Education Department [2019KJC023]
- China Postdoctoral Science Foundation [2020M671990]
Ask authors/readers for more resources
In this study, a NiO-Co3O4 nanoneedle array was prepared using atomic layer deposition for methanol oxidation reaction in direct methanol fuel cells, showing promising catalytic activity and stability.
Developing efficient transition metal oxide catalysts is still challenging for direct methanol fuel cells. Herein, an atomic layer deposition method to prepare NiO on a self-supported Co3O4 nanoneedle array grown on a porous nickel foam substrate (NiO-Co3O4 NA@NF) as the electrode for the methanol oxidation reaction (MOR) is reported. The synergistic effect between the NiO and Co3O4 components as well as the specific 3D nanoarray structure can endow the prepared NiO-Co3O4 NA@NF with a very promising MOR catalytic activity. As a result, the NiO-Co3O4 NA@NF catalyst shows a low onset potential (1.27 V vs reversible hydrogen electrode [RHE]), a high current density (173 mA cm(-2)@1.524 V vs RHE), and good stability in MOR. This work demonstrates the feasibility of the atomic layer deposition strategy in fabricating complex oxides-based high-performance electrocatalysts.
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