Mohammed Amin

Visit of Ethiopia's prime minister to Port Sudan reveals growing engagement with the war following RSF advances on its border

Ethiopian Prime Minister Abiy Ahmed sets up call between two leaders, as Sudanese army continues to accuse UAE of arming and funding its rival

Popular movements are emerging across Sudan to defend communities against RSF atrocities after more than a year of conflict

Witnesses tell MEE that the Rapid Support Forces is killing civilians every day and fighters are attempting to abduct girls

Senior Vice President, CEEMETA, Dell Technologies.

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Abstract Controlling the morphology, composition, and crystalline phase of mesoporous nonnoble metal catalysts is essential for improving their performance. Herein, well‐defined P‐ and B‐codoped NiFe alloy mesoporous nanospheres (NiFeB‐P MNs) with an adjustable Ni/Fe ratio and large mesopores (11 nm) are synthesized via soft‐template‐based chemical reduction and a subsequent phosphine‐vapor‐based phosphidation process. Earth‐abundant NiFe‐based materials are considered promising electrocatalysts for the oxygen evolution reaction (OER) because of their low cost and high intrinsic catalytic activity. The resulting NiFeB‐P MNs exhibit a low OER overpotential of 252 mV at 10 mA cm −2 , which is significantly smaller than that of B‐doped NiFe MNs (274 mV) and commercial RuO 2 (269 mV) in alkaline electrolytes. Thus, this work highlights the practicality of designing mesoporous nonnoble metal structures and the importance of incorporating P in metallic‐B‐based alloys to modify their electronic structure for enhancing their intrinsic activity.