Searching for efficiently noble-metal-free hydrogen evolution catalysts is critical to the development of hydrogen energy. In this work, we report an in-situ growing defect-rich heterointerfaces structure MoNi-based sulfides on carbon cloth via a facile and controllable hydrothermal process. The interface structure in [email protected]/CC can not only provide suffcient channel for transportation of electrolyte, but also release of produced gases in the catalytic process, thence enhance the sluggish hydrogen evolution efficiency. Furthermore, the defects in [email protected]/CC have significant impacts on hydrogen evolution behavior. Therefore, the as-synthesied [email protected]/CC shows a low overpotential of 33 mV to deliver a current density of 10 mAcm⁻² and a small tafel slope of 80 mVdec⁻¹, and also exhibits an excellent long-term stability in 0.5 M H₂SO₄. Additionaly, the [email protected]/CC offers outstanding hydrogen evolution reaction performances in 1 M KOH.

有效地寻找不含贵金属的析氢催化剂对开发氢能至关重要。在这项工作中，我们通过一种可控的水热过程报告了一种在碳布上原位生长的富缺陷异质结构MoNi基硫化物。[email protected] / CC中的界面结构不仅可以提供足够的电解质运输通道，还可以在催化过程中释放产生的气体，从而提高了缓慢的氢气释放效率。此外，[受电子邮件保护] / CC中的缺陷对析氢行为有重大影响。因此，合成后的[受电子邮件保护] / CC显示出33 mV的低过电势，可提供10 mAcm ^-2的电流密度和80 mVdec ^-1的小拖尾斜率，并且在0.5 M H ₂ SO _4中也表现出出色的长期稳定性。另外，[受电子邮件保护] / CC在1 M KOH中具有出色的析氢反应性能。