Significant energy conversion systems like hydrogen production will necessitate the creation of an affordable oxygen evolution reaction (OER). In this field, numerous materials are investigated, especially under more advantageous alkaline environments, and among all transition metal chalcogenides have shown a great promise for OER. On the other hand, when all chalcogenides are oxidized in alkaline conditions, they are thermodynamically less stable than hydroxides and oxides materials. The in-situ molecular, physical, and surface morphology of all the synthesized materials are confirmed via various analytical techniques and then employed for oxygen evolution process (OER) in an alkaline media. In consideration, the VTe/CuO nanostructures grown on surface of copper mesh (CM) as a substrate have enhanced OER functionality compared to VTe and CuO nanostructures. In comparison to CuO and VTe, nanocomposite has a lower overpotential around 316 mV, a smaller Tafel value around 81 mV dec, and long-term stability up to 35 h. The very large specific surface area, lower overpotential, smaller tafel slope, and low resistance of VTe/CuO make it a superior component for upcoming uses. This work illustrates the usefulness of an interface-engineering technique for developing effective electrocatalyst for oxygen evolution process employing transition metal chalcogenides.

中文翻译：

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构建装饰在铜网上的 VTe/CuO 作为高效能量转换系统的电催化剂

氢气生产等重要的能量转换系统需要创建经济实惠的析氧反应（OER）。在这一领域，人们对许多材料进行了研究，特别是在更有利的碱性环境下，并且在所有过渡金属硫属化物中，它们在OER方面表现出了巨大的前景。另一方面，当所有硫族化物在碱性条件下被氧化时，它们在热力学上不如氢氧化物和氧化物材料稳定。所有合成材料的原位分子、物理和表面形态均通过各种分析技术进行确认，然后用于碱性介质中的析氧过程（OER）。考虑到，与 VTe 和 CuO 纳米结构相比，在铜网 (CM) 表面作为基底生长的 VTe/CuO 纳米结构具有增强的 OER 功能。与 CuO 和 VTe 相比，纳米复合材料的过电位较低，约为 316 mV，Tafel 值较小，约为 81 mV dec，长期稳定性可达 35 h。VTe/CuO 具有非常大的比表面积、较低的过电势、较小的塔菲尔斜率和低电阻，使其成为未来用途的优质组件。这项工作说明了界面工程技术对于开发使用过渡金属硫属化物的析氧过程的有效电催化剂的有用性。