| 초록 |
We introduce textile-based, highly porous electrocatalytic electrodes with remarkably low overpotentials using metal nanoparticle assembly-assisted electroplating. Hydrophobic metal nanoparticles were layer-by-layer assembled with small-molecule linkers onto the fibrils within a cotton substrate to form the conductive seeds for effective electroplating of electrocatalysts. This approach converts insulating cotton to electrocatalytic textiles while maintaining their intrinsic 3D porous structure. As a result, HER and OER electrodes exhibited extremely low overpotentials of 12 mV at 10 mA cm−2 and 214 mV at 50 mA cm−2, respectively. Additionally, the two-electrode system exhibits a current density of 10 mA cm−2 at a low cell voltage of 1.39 V, with good durability. Our strategy to design 3D porous electrocatalytic electrodes could be applied to improve the water splitting performance. |
