The scalable application of high-performance electrocatalysts with fine nanostructures for hydrogen evolution reactions (HER) depends on the development of durable and active electrode supports. Transition metal nitrides are considered as candidates due to their high conductivity, favorable catalytic activity, and excellent chemical stability in acidic or alkaline aqueous solutions. The present work proposed to fabricate self-ordered hybrid niobium–titanium (Nb–Ti) nitride nanotube arrays (NNAs) on Nb–Ti alloy panels by an anodization and subsequent nitridation process. Results showed that the highly ordered NNA is composed of mixed Nb₄N₅ and TiN and has merits of super hydrophilicity, outstanding corrosion resistance, and high conductivity. On the basis of the successful synthesis of Nb–Ti NNA, the nano–sized amorphous rhenium–nickel (Re–Ni) alloy was electrodeposited onto the NNA support, forming the Re–Ni/NNA composite electrode. Electrochemical tests exhibited that the Re–Ni/NNA composite electrode can provide a current density of 50 mA cm⁻² in 1.0 M KOH at a potential of −0.18 V vs. RHE and maintain stability in a testing period of 100 h. This superior HER performance is attributed to the combination of Re–Ni particles and Nb–Ti NNA support, which can benefit the diminution of charge transfer resistance and the improvement of catalytic activity.

具有精细纳米结构的高性能电催化剂可用于氢气析出反应（HER）的可扩展应用取决于耐用和活性电极载体的开发。过渡金属氮化物由于其高电导率，良好的催化活性以及在酸性或碱性水溶液中的出色化学稳定性而被视为候选金属。本工作建议通过阳极氧化和随后的氮化工艺在Nb-Ti合金板上制造自定序的铌-钛（Nb-Ti）氮化物纳米管阵列（NNA）。结果表明，高度有序的NNA由混合Nb ₄ N _5组成和TiN，具有超亲水性，出色的耐腐蚀性和高导电性的优点。在成功合成Nb-Ti NNA的基础上，将纳米级非晶态-镍（Re-Ni）合金电沉积到NNA载体上，形成Re-Ni / NNA复合电极。电化学测试表明，Re-Ni / NNA复合电极可在1.0M KOH中以-0.18 V vs. RHE的电势提供50 mA cm ^-2的电流密度，并在100 h的测试时间内保持稳定性。优异的HER性能归因于Re-Ni颗粒和Nb-Ti NNA载体的结合，这可以减少电荷转移阻力并提高催化活性。