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Updated: Jun 10, 2025
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Al, P-co-doping and interface engineering synergistically boost the electrocatalytic performance of WS2/Ni3S2/NiS
Mghaib Al Shahrani1, Mabrook S Amer1, Ahmad A Alsaleh1
1Electrochemical Sciences Research Chair (ESRC), Chemistry Department, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia msamer@ksu.edu.sa amayouf@ksu.edu.sa.
Abstract:
The fabrication of earth-abundant electrocatalysts capable of facilitating hydrogen evolution reactions (HER) is essential for creating sustainable hydrogen fuel by water splitting. Here, we present a one-pot hydrothermal approach for producing aluminum and phosphorus co-doped NiS/Ni3S2/WS2 heterostructure hybrid frameworks on nickel foam. The optimal Al and Al, P/NiWS-b@NF catalyst exhibits high HER activity with overpotentials of 139 and 227 mV at current densities of 10 and 50 mA cm-2, respectively, thanks to the synergistic effect of the various constituents of the catalyst. What is more, it also exhibits a promising Tafel slope of 124 mV dec-1 and is electrocatalytically durable for 10 hours in 0.5 M H2SO4 solution. The high HER activity of Al, P/NiWS-b@NF could be explained by the large number of active sites of the hierarchical heterostructure and electron effects produced by the combination of interfacial and aluminum and phosphorus doping.
