A Biomimetic Twisting Strategy Enables Efficient Electrocatalytic Oxidation of Energy-Dense Hydrazine Hydrate on FeN<sub>2+2</sub>C<sub>4+4</sub> Sites.
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ABSTRACT: Electrocatalytic hydrazine oxidation holds great promise for enabling fuel cell-powered transportation since hydrazine hydrate (N2H4·H2O) has the highest energy density of all liquid, CO2-free fuels (3.45 kWh/L), and the highest fuel cell voltage (1.56 V vs O2). Inspired by the ruffling of catalytic centers in oxidative enzymes, we designed a twisted single-atom nanozyme comprising twisted FeN2+2C4+4 sites, enabling high accessibility of N2H4 and OH- reactants. Experimental evidence shows that this nanozyme catalyst achieves the lowest oxidation overpotential of all Fe-N-C materials, both in the lab and in direct hydrazine fuel cells, with an open-circuit voltage of 0.95 V, unprece
SUBMITTER: Offen-Polak I
PROVIDER: S-EPMC12412151 | biostudies-literature | 2025 Sep
REPOSITORIES: biostudies-literature
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