An ultrathin CdS layer-modified MoO₃/Ni₃S₂ hierarchical nanoarray on Ni foam exhibits ultrahigh electrocatalytic activity towards the hydrogen evolution reaction with a small overpotential of 30 mV at −10 mA cm⁻² due to the synergistic effect of easy electron transfer among CdS, MoO₃ and Ni₃S₂/NF and the well-designed structure, which outperforms the current non-noble electrocatalysts.

中文翻译：

---

用超薄CdS层改性的Ni泡沫上的Ni ₃ S ₂ @MoO ₃核/壳阵列，作为析氢反应的优良电催化剂

在Ni泡沫材料上的超薄CdS层修饰的MoO ₃ / Ni ₃ S ₂分层纳米阵列由于易于电子转移的协同作用，对氢的析出反应具有超高的电催化活性，在-10 mA cm ^-2处具有30 mV的小超电势。在CdS，MoO ₃和Ni ₃ S ₂ / NF中具有良好的设计，其结构优于目前的非贵金属电催化剂。