Designing highly active electrocatalysts based on earth-abundant metals is attracting great interest for the development of renewable energies. In this work, NiTe₂/Ni(OH)₂ hybrid nanosheet is successfully fabricated on carbon fiber cloth by a successive hydrothermal reaction for the first time, showing excellent catalytic performance for both electrochemical water oxidation and urea oxidation reaction. Benefiting from the unique electron property of NiTe₂ and strong synergistic interaction between NiTe₂ and Ni(OH)₂, the as-obtained hybrid catalyst only need an overpotential of 267 mV to achieve a current density of 10 mA cm⁻² in 1.0 M KOH, and achieve 73 mA/cm² at 1.523 V in 1.0 M KOH with 0.33 M urea. The innovation of this work is the incorporation of NiTe2 and Ni(OH)2 to boost its catalytic ability. This novel method is expected to provide new chance for developing efficient catalysts for energy conversion application.

设计基于稀土金属的高活性电催化剂，对可再生能源的发展引起了极大的兴趣。在这项工作中，NiTe ₂ / Ni（OH）₂杂化纳米片首次通过连续的水热反应成功地在碳纤维布上制备，显示出对电化学水氧化和尿素氧化反应均具有优异的催化性能。得益于NiTe ₂的独特电子性能以及NiTe ₂与Ni（OH）₂之间的强协同作用，如此获得的杂化催化剂仅需267 mV的超电势即可在1.0 M中实现10 mA cm ^-2的电流密度KOH，并达到73 mA / cm ²在1.523 V的条件下，在1.0 M KOH中与0.33 M尿素一起使用。这项工作的创新之处在于掺入NiTe2和Ni（OH）2以增强其催化能力。预期该新方法将为开发用于能量转化应用的有效催化剂提供新的机会。