Pyrolysis of hexacarbonyl tungsten, W(CO)₆, in 1-octadecene has been used to prepare colloidal tungsten, W, nanoparticles (NPs). The obtained W NPs has been spin-coated on graphite (C) electrodes. Heat treatment of the W/C electrodes at elevated temperatures (≥900 °C) allows the preparation of metallic W and tungsten carbide (W₂[email protected]) thin films. The obtained W₂[email protected] electrodes were used for hydrogen evolution studies (HER) in 0.5 M H₂SO₄. Cyclic voltammetry tests for 1000 cycles showed that W₂[email protected] exhibit long term stability without significant drop in current density. The overpotential defined at 10 mA/cm² is 310 mV vs. RHE giving an excellent catalytic activity for HER. Materials characterization has been achieved using transmission electron microscopy (TEM), scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS). Here, EIS studies were used to access the charge-transfer resistance of tungsten carbide electrodes.

六羰基钨W（CO）₆在1-十八碳烯中的热解已用于制备胶体钨W纳米颗粒（NPs）。将获得的W NP旋涂在石墨（C）电极上。在高温（≥900°C）下对W / C电极进行热处理可以制备金属W和碳化钨（W ₂ [受电子邮件保护]）薄膜。将获得的W ₂ [受电子邮件保护的]电极用于0.5 MH ₂ SO _4中的析氢研究（HER）。1000次循环伏安法测试表明，W ₂ [受电子邮件保护]具有长期稳定性，电流密度没有明显下降。过电位定义为10 mA / cm ²RHE为310 mV，对HER具有出色的催化活性。使用透射电子显微镜（TEM），扫描电子显微镜（SEM）和电化学阻抗谱（EIS）实现了材料表征。在这里，EIS研究用于获取碳化钨电极的电荷转移电阻。