Reducing noble metal dependence: oxygen evolution reaction with a Ru-minimized BiRuO@MOF-801 composite.

Nanoscale

Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.

Published: February 2025


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Article Abstract

Developing efficient and noble metal-minimized electrocatalysts for the oxygen evolution reactions (OER) is critical for energy conversion reactions. Here we present Ru-minimized BiRuO@MOF-801 that synergistically combines the high catalytic activity of the bimetallic oxide with the unique structural and hydrophilic properties of the Zr-MOF. The composite achieves superior OER performance with a low overpotential of 307 mV at 50 mA cm and a Tafel slope of 99.8 mV dec surpassing those of pure BiRuO and MOF-801. Comparative testing with cutting-edge catalysts shows that using less Ru and incorporating a MOF work well together, providing a promising way to make high-performance OER catalysts that are also cost-effective by integrating the MOF for energy applications.

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http://dx.doi.org/10.1039/d4nr04140bDOI Listing

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