Ni2P nanoparticle films supported on a Ti plate as an efficient hydrogen evolution cathode

In this communication, we report a two-step strategy for low-temperature construction of Ni₂P nanoparticle films supported on a Ti plate (Ni₂P/Ti). When used as an integrated hydrogen evolution cathode, the Ni₂P/Ti electrode exhibits remarkable catalytic activity, superior stability and nearly 100% Faradaic efficiency in acidic solutions, and it needs overpotentials of 138 and 188 mV to afford current densities of 20 and 100 mA cm^-2, respectively.In this communication, we report a two-step strategy for low-temperature construction of Ni₂P nanoparticle films supported on a Ti plate (Ni₂P/Ti). When used as an integrated hydrogen evolution cathode, the Ni₂P/Ti electrode exhibits remarkable catalytic activity, superior stability and nearly 100% Faradaic efficiency in acidic solutions, and it needs overpotentials of 138 and 188 mV to afford current densities of 20 and 100 mA cm^-2, respectively.

Electronic supplementary information (ESI) available: Experimental section and figures. See DOI: 10.1039/c4nr03037k