High performance bifunctional catalysts for water splitting are very promising. Transition metal phosphides as catalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) have attracted considerable attention due to their high performance. However, the catalyst with excellent properties still remains a significant challenge. Herein, the nanoporous NiFeMoP(np-NiFeMoP) ribbon was prepared by quenching and dealloying method. It was found that np-NiFeMoP showed excellent HER and OER performance in 1 M KOH. The overpotential of OER is as low as 197 mV at a current density of 20 mA·cm⁻². When the current density is 10 mA·cm⁻², the overpotential of HER is 223 mV. Moreover, np-NiFeMoP only needs a cell voltage of 1.41 V when current density is 10 mA·cm⁻² for water splitting. Our current work may provide some new insights on rationally constructing nanoporous structure with rich active sites to boost the catalytic performances for overall water splitting.

用于水分解的高性能双功能催化剂非常有前途。由于过渡金属磷化物的高性能，作为氢释放反应（HER）和氧释放反应（OER）的催化剂，引起了广泛的关注。然而，具有优异性能的催化剂仍然是重大挑战。在此，通过淬火和脱合金方法制备了纳米多孔NiFeMoP（np-NiFeMoP）带。发现np-NiFeMoP在1 M KOH中显示出优异的HER和OER性能。在20 mA·cm ^-2的电流密度下，OER的过电势低至197 mV 。当电流密度为10mA·cm ^-2时，HER的过电势为223mV。此外，当电流密度为10 mA·cm时，np-NiFeMoP仅需要1.41 V的电池电压⁻²用于分水。我们当前的工作可能会为合理构建具有丰富活性位点的纳米多孔结构，以提高整体水分解的催化性能提供一些新见解。