The Co₂[email protected]₂O₄ bi-functional electrocatalyst was fabricated for hydrogen evolution reaction and oxygen evolution reaction in acidic, neutral and alkaline media. The Co₂[email protected]₂O₄ in alkaline media exhibites an extremely low overpotential of 170 mV in oxygen evolution to achieve a current density of 10 mA cm⁻² and produces stable water splitting nearly 30 h. The anchored-Co₂P can enhance the electrochemical performance of pristine NiCo₂O₄ as well as increase the tolerance in acidic media of NiCo₂O₄. Additional, the Co₂P is oxidized to oxides/hydroxides species during the electrocatalytic reaction, which acts as the active centers of the electrocatalysis. The Co₂[email protected]₂O₄ catalyst can be used as an effective bifunctional synergistic center in a wide range of pH values (from 0 to 14).

制备了Co ₂ [受电子邮件保护的] ₂ O ₄双功能电催化剂，用于在酸性，中性和碱性介质中的氢气释放反应和氧气释放反应。碱性介质中的Co ₂ [受电子邮件保护] ₂ O ₄在氧气释放中表现出极低的170 mV过电势，可实现10 mA cm ^-2的电流密度，并在近30 h内产生稳定的水分解。锚定的钴₂ P能够提高原始镍钴的电化学性能₂ ö ₄以及增加的公差在镍钴的酸性介质₂ ö ₄。另外，在电催化反应期间，Co ₂ P被氧化成氧化物/氢氧化物，其充当电催化的活性中心。Co ₂ [受电子邮件保护的] ₂ O ₄催化剂可以在很宽的pH值范围（0至14）中用作有效的双功能协同中心。