01663nas a2200193   4500008004100000022001400041245012600055210006900181260000900250300001400259490000700273520097300280100001801253700001701271700002001288700001701308700001701325856012701342       2026                        eng d  a1477-922600aAmorphous vanadium-doped iron borate/tetraboride hybrid as an efficient electrocatalyst for the oxygen evolution reaction0 aAmorphous vanadiumdoped iron boratetetraboride hybrid as an effi  cMAR   a4932-49400 v553 a<p>
	The design of an effective electrocatalyst as a replacement for a conventional expensive electrocatalyst for facilitating the sluggish oxygen evolution reaction (OER) at the anode has been identified as an effective way to make hydrogen production economical. Herein, we have developed a unique combination of iron borate and iron tetraboride (Fe-BO/FeB) by a facile chemical reduction process. The optimum vanadium doping further led to the transformation of Fe-BO/FeB into an amorphous form, which is believed to be very beneficial for the OER mechanism. The developed electrocatalyst needs overpotentials of 215 mV and 256 mV in alkaline 1 M KOH electrolyte to achieve current densities of 10 and 100 mA cm-2, respectively, and it also shows stability over 48 h, maintaining a high current density of 200 mA cm-2. Enhanced performances were also confirmed by smaller activation energies for the optimized sample compared with a pristine electrocatalyst.</p>
1 aAhmed, Tanbir1 aPal, Santanu1 aSinha, Nibedita1 aDas, Chandni1 aRoy, Poulomi  uhttps://library.ncl.res.in/content/amorphous-vanadium-doped-iron-boratetetraboride-hybrid-efficient-electrocatalyst-oxygen