Unveiling the Electrocatalytic Performances of the Pd-MoS<sub>2</sub> Catalyst for Methanol-Mediated Overall Water Splitting
Herein, this work elucidates the synthesis of the Pd-MoS<sub>2</sub> catalyst for application in methanol-mediated overall water splitting. The scanning electron microscope (SEM) and transmission electron microscope (TEM) pictures offer an exciting nanostructured shape of the Pd-MoS<s...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Inorganics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6740/13/1/21 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Herein, this work elucidates the synthesis of the Pd-MoS<sub>2</sub> catalyst for application in methanol-mediated overall water splitting. The scanning electron microscope (SEM) and transmission electron microscope (TEM) pictures offer an exciting nanostructured shape of the Pd-MoS<sub>2</sub>, depicting a high surface area. Further, high-resolution TEM (HRTEM) pictures confirm the lattice plane (100), lattice spacing (0.26 nm), and hexagonal crystal structure of the Pd-MoS<sub>2</sub>. Moreover, high-angle annular dark-field (HAADF) images and related color maps disclose the Mo, S, and Pd elements of the Pd-MoS<sub>2</sub>. The Pd-MoS<sub>2</sub> catalyst exhibits lower overpotentials of 224.6 mV [methanol-mediated hydrogen evolution reaction (MM-HER)] at −10 mA cm<sup>−2</sup> and 133 mV [methanol-mediated oxygen evolution reaction (MM-OER)] at 10 mA cm<sup>−2</sup>. Further, the Pd-MoS<sub>2</sub> illustrates noteworthy stability for 15.5 h for MM-HER and 18 h for MM-OER by chronopotentiometry test. Excitingly, the Pd-MoS<sub>2</sub>∥Pd-MoS<sub>2</sub> cell reveals a small potential of 1.581 V compared to the MoS<sub>2</sub>∥MoS<sub>2</sub> cell (1.648 V) in methanol-mediated overall water splitting. In addition, the Pd-MoS<sub>2</sub>∥Pd-MoS<sub>2</sub> combination reveals brilliant durability over 18 h at 10 mA cm<sup>−2</sup>. |
|---|---|
| ISSN: | 2304-6740 |