02613nas a2200265   4500008004100000022001400041245009000055210006900145260000800214300001200222490000800234520176400242653003602006653000802042653001402050653002802064653000802092653002802100100001802128700001902146700001802165700002202183700002402205856011802229       2025                        eng d  a0360-319900aGrowth of Mo-doped Ni3S2 nanorods array for superior overall water splitting reaction0 aGrowth of Modoped Ni3S2 nanorods array for superior overall wate  cJUN  a729-7370 v1413 a<p>
	Designing novel, efficient and cost-effective dual-functional electrocatalyst for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) using an alkaline electrolyte is crucial for establishing a sustainable hydrogen economy and transitioning to a society powered by renewable energy sources. In the present work, Mo-doped nickel sulfide (Mo-Ni3S2) nanorods were grown on Ni-treated nickel foam (N-NF) substrate via a two-steps hydrothermal method. Specifically, Mo-Ni3S2/N-NF surface consists of nanorods-like morphology, which provides extensive area for percolation of electrolyte, that resulting in outstanding catalytic performance. Such a well-synthesized electrode exhibited superior performance and stability for OER as compared with pristine Ni3S2/NF and bare nickel foam (NF) electrodes. In addition, Mo-Ni3S2/N-NF electrode provides good HER activity and confirms its dual-functionality in alkaline medium. Our champion Mo-Ni3S2/N-NF electrocatalyst delivers best OER overpotential of 230 mV at current density of 100 mA/cm(2). Also, it provides HER overpotential of 100.6 mV at a current density of 10 mA/cm(2). Both OER and HER are carried out in the presence of 1 M KOH alkaline electrolyte. OER stability of the best-performed Mo-Ni3S2/N-NF electrode demonstrates almost constant current density similar to 120 mA/cm(2), which retains 90% of original value after continuously tested for the duration of 22 h. The total cell voltage of 1.56 V is provided by Mo-Ni3S2/N-NF integrated system and it demonstrates a good stability for duration of 22 h. Our approach provides a new insight into developing earth-abundant, inexpensive and superior dual-functional electrocatalyst for overall water splitting reaction (WSR).</p>
10aDual-functional electrocatalyst10aHER10aMo doping10aNickel sulfide nanorods10aOER10aoverall water splitting1 aSharma, Pooja1 aKhandare, Lina1 aSaha, Arindam1 aChaure, Nandu, B.1 aYengantiwar, Ashish  uhttps://library.ncl.res.in/content/growth-mo-doped-ni3s2-nanorods-array-superior-overall-water-splitting-reaction