Active, cost-effective and durable electrocatalysts composed of earth abundant elements for water oxidation reaction are significantly important in the research domain of sustainable energy production and storage. Here, we present hydrothermally synthesized copper telluride nanowires (Cu₇Te₄-NW) for high activity water oxidation. The successful synthesis of nanoscale catalytic material is characterized through various techniques. The electrocatalyst exhibits the higher intrinsic catalytic performance at very low overpotentials (277 mV), smaller Tafel slope (33 mV dec⁻¹), least charge transfer resistance (1.5 Ω), higher turnover frequency value (2.57 s⁻¹ @ 350 mV), and long-term durability (100 mA for 24 h @ 1.66 V vs RHE), surpassing the electrocatalytic efficiency for Oxides of noble metals i.e. Ru and Ir. DFT calculations demonstrate that the energy for hydroxyl attachment is highly favourable onto the porous substrate of Cu₇Te₄-NW, further approving its remarkable properties for heightened electrocatalytic water oxidation performance. The highly atypical OER catalytic performance is discovered for Cu₇Te₄-CF that can be succinctly attributed to its extraordinary structural attributes yielding greater surface area and highly exposed catalytic active sites. The novel catalyst of Cu₇Te₄-CF can be benchmarked as an alternative for previously scrutinized metal chalcogenides based electrocatalysts for OER due to its efficacious catalytic performance.

活性，高成本效益和持久性的，由富含稀土元素组成的用于水氧化反应的电催化剂在可持续能源生产和存储的研究领域中非常重要。在这里，我们提出了用于高活性水氧化的水热合成碲化铜纳米线（Cu ₇ Te ₄ -NW）。纳米催化材料的成功合成通过各种技术来表征。在极低的过电势（277 mV），较小的塔菲尔斜率（33 mV dec ^-1），最小的电荷转移电阻（1.5Ω），较高的转换频率值（2.57 s ^-1）下，电催化剂表现出较高的固有催化性能。@ 350 mV）和长期耐用性（1.66 V vs RHE时100 mA持续24 h），超过了Ru和Ir等贵金属氧化物的电催化效率。DFT计算表明，羟基附着能量非常有利于Cu ₇ Te ₄ -NW多孔基材，进一步证明了其卓越的性能，可增强电催化水氧化性能。发现Cu ₇ Te ₄ -CF具有高度非典型的OER催化性能，这可以归因于其非凡的结构特性，可产生更大的表面积和高度暴露的催化活性中心。Cu ₇ Te ₄的新型催化剂由于其有效的催化性能，-CF可以作为先前审定的基于金属硫属化物的OER电催化剂的基准。