Well-dispersed carbon-coated or nitrogen-doped carbon-coated copper-iron alloy nanoparticles (FeCu@Co r FeCu@CÀN) in carbon-based supports are obtained using a bimetallic metal-organic framework (Cu/Fe-MOF-74)o ra mixture of Cu/Fe-MOF-74 and melamine as sacrificial templates and an active-component precursor by using apyrolysis method.T he investigation resultsa ttest formation of CuÀ Fe alloy nanoparticles. The obtained FeCu@Cc atalyst exhibits ac atalytic activity with ah alf-wave potential of 0.83 Vf or oxygen reduction reaction (ORR) in alkalinem edium, comparable to that on commercial Pt/C catalyst (0.84 V).T he cata-lytic activity of FeCu@CÀNf or ORR (E half-wave = 0.87 V) outshinesa ll reported analogues. The excellent performance of FeCu@CÀNs hould be attributedt oachange in the energy of the d-band center of Cu resulting from the formationo f the copper-iron alloy,t he interaction between alloy nanoparticlesa nd supports and N-dopingi nt he carbon matrix. Moreover,F eCu@C and FeCu@CÀNs how better electrochemicals tability and methanol tolerance than commercial Pt/C and are expected to be widely used in practical applications.
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