Eco-friendly high entropy oxide rock-salt type structure for oxygen evolution reaction obtained by green synthesis

Sol–gel-derived nanostructured electrocatalysts for oxygen evolution reaction: a review

“…The high-entropy oxide was synthesized via a green sol–gel utilizing Rhodophyta , a red seaweed, as a polymerizing agent. 161 In terms of OER performance, a low overpotential of 336 mV at 10 mA cm −2 and a small Tafel slope of 68 mV dec −1 were demonstrated together with impressive durability. This outstanding OER activity is attributed to the synergy of the incorporated transition metals in the high entropy oxide.…”

“…165–167 Also, the ecological impact of the advancement of sol–gel-synthesized materials is crucial and a scrutinized method to heighten their energy performance is required to align with the principles of green chemistry. 161,168,169 The interdisciplinary nature of this field, comprising next-generation electrolyzers, fuel cells, electrochemistry, catalysis, materials science, and other conversion devices, discloses the key to advancing the effectivity and promising possibilities for inventive collaboration. In the relentless pursuit of knowledge expansion by researchers, the crafting of sustainable electrocatalysts through the sol–gel approach is poised to be a fundamental force propelling the ongoing global movement towards a cleaner and enduring energy paradigm.…”