Hydrogen Evolution Reaction (HER) in alkaline media has been a point of great interest in the field of water splitting research due to its importance in ensuring the commercial viability of hydrogen-based technology, although it suffers from the sluggish reaction kinetics which limits the activity of catalysts. However, in recent times different approaches such as hybrid electrocatalysts made up of a variety of carbon nanostructures with different catalysts are being used to deal with this problem. In the present study, Single-Walled Carbon Nanotubes (SWCNTs) along with Pd were sprayed over the surface of electrodeposited Cu₂O electrode, to improve its HER performance in alkaline media. The structural characterizations of the deposited material were performed using X-Ray diffraction and X-Ray Photoelectron spectroscopy while scanning electron microscopy and Energy Dispersive Spectroscopy were used to examine the surface morphology and elemental mapping. The electrocatalytic performance of Nickel foam supported Cu₂O was significantly improved after its surface modification with carbon nanotubes (CNTs) and Pd. The improved performance was attributed firstly to the enhanced catalytic activity due to the presence of Pd and secondly to the improved effective surface area and charge transportation at the electrode–electrolyte interface due to the presence of CNTs. The improvement in effective surface area is mainly due to the porous structure formed by the network of CNTs, which also improved the dispersivity of Pd nanoparticles over the electrode surface.

碱性介质中的析氢反应 (HER) 一直是水分解研究领域的一个重点，因为它在确保氢基技术的商业可行性方面很重要，尽管它受到反应动力学缓慢的限制，从而限制了其活性的催化剂。然而，近来使用不同的方法来解决这个问题，例如由各种碳纳米结构和不同催化剂组成的混合电催化剂。在本研究中，单壁碳纳米管 (SWCNT) 与 Pd 一起喷涂在电沉积 Cu ₂的表面上O 电极，以提高其在碱性介质中的 HER 性能。沉积材料的结构表征使用 X 射线衍射和 X 射线光电子能谱进行，同时扫描电子显微镜和能量色散光谱用于检查表面形态和元素映射。泡沫镍负载Cu ₂的电催化性能用碳纳米管 (CNTs) 和 Pd 对其进行表面改性后，O 得到了显着改善。性能的提高首先归因于 Pd 的存在提高了催化活性，其次归因于 CNT 的存在提高了电极-电解质界面处的有效表面积和电荷传输。有效表面积的提高主要是由于CNT网络形成的多孔结构，这也提高了Pd纳米颗粒在电极表面的分散性。