Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7705548 | International Journal of Hydrogen Energy | 2018 | 9 Pages |
Abstract
Cobalt nanoparticles encapsulated in nitrogen-doped carbon nanotubes (Co@NC) are obtained by a simple pyrolysis of Co-MOF (ZIF-67) for the bifunctional water recovery and hydrogen production. The results showed that calcination temperature of ZIF-67 significantly affected the morphology and catalytic performance. Wastewater are effectively recovered in the presence of the Co@NC and oxidant, which is promoted by anodic oxidation reactions. Co@NC as the cathode catalyst exhibited excellent hydrogen evolution reaction catalytic activity with a low onset potential of â51Â mV (vs. RHE, current density of 0.5Â mA/cm2), Tafel slope of 96.73Â mV/dec and extraordinary long-term durability. Finally, as a proof of concept, a home-made two-electrode device employed Co@NC as both anode and cathode catalyst for continuous water recovery and simultaneous hydrogen production, which possesses the possibly applications in solving the environmental pollution and energy crisis.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Jiayuan Yu, Guixiang Li, Hui Liu, Aili Wang, Linjing Yang, Weijia Zhou, Yongyou Hu, Benli Chu,