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Outline
Nanostructured electrodes，due to the fast reaction kinetics，enhanced mass transfer，and good electron conductivity，have been highlighted as a promising candidate for the electrocatalysis of hydrogen evolution. Herein，we demonstrate a one-step pyrolysis synthesis of Cu-doped RuO₂ nanorod arrays （RCO/NF） on nickel foam，demonstrating exceptional electrocatalytic hydrogen evolution performance. The engineered electrode architecture combines three critical advantages： Cu doping-induced charge buffering stabilizes RuO₂ active sites；vertically aligned nanorods with superhydrophilic character （contact angle <18°），optimize mass transport while mitigating bubble shielding；and a CuO interlayer reinforces mechanical stability. Electrochemical evaluation in 1.0 mol·L-1 KOH reveals outstanding activity，achieving an ultralow overpotential of 5 mV at 10 mA·cm-2 and maintaining 42% lower overpotential than commercial Pt/C at industrial current densities （200-400 mA·cm-2）. The developed synthesis strategy establishes a scalable approach for high-performance non-precious metal electrocatalysts，offering significant potential for green hydrogen production technologies.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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