As a clean energy source, water splitting can produce both hydrogen and oxygen, so it is significant to design high performance bifunctional electrocatalysts to improve the reaction efficiency, but remains a challenge. Herein, a Co₃V₂O₈/MoS₂/ carbon cloth (Co₃V₂O₈/MoS₂/CC) composite was prepared by two‐step hydrothermal growth of Co₃V₂O₈/MoS₂ on carbon cloth. This nanocomposite exhibited highly efficient electrocatalytic properties in both hydrogen evolution reactions and oxygen evolution reactions. When the current density reached 10 mA cm⁻², it merely required the overpotentials of 98 mV and 259 mV, respectively. Moreover, at a two‐electrode system, we measured the performance of Co₃V₂O₈/MoS₂/CC acted as both anode and cathode, and the current density could achieve 10 mA cm⁻² with the voltage of only 1.62 V.

中文翻译：

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用于整体水分解的高效Co3V2O8 / MoS2 /碳布纳米复合双功能电催化剂

作为一种清洁能源，水分解可以同时产生氢气和氧气，因此设计高性能的双功能电催化剂对于提高反应效率具有重要意义，但仍然是一个挑战。在此，共₃ V ₂ ö ₈ / MOS ₂ /碳布（共₃ V ₂ ö ₈ / MOS ₂ / CC）复合制备的Co两步水热生长₃ V ₂ ö ₈ / MOS ₂在碳布上。该纳米复合材料在氢气析出反应和氧气析出反应中均显示出高效的电催化性能。当电流密度达到10mA cm ^-2时，仅需要分别为98mV和259mV的过电势。此外，在双电极系统中，我们测量了同时用作阳极和阴极的Co ₃ V ₂ O ₈ / MoS ₂ / CC的性能，在电压仅为1.62 V的情况下，电流密度可以达到10 mA cm ^-2。 。