Abstract
High entropy alloy (HEA) would be a good approach to improve electrocatalytic utilization of precious metals. Herein, a HEA catalyst of PtBiNiCoSn/C was used in the ethylene glycol oxidation reaction (EGOR) and finally applied to a direct ethylene glycol fuel cell (DEGFC). The results showed that the EGOR current density reached 1.406 A mg‐−1Pt, which exceeded those Pt/C references by 6.39 times. The remaining current density after 3000 s of chronoamperometry (CA) analysis is 0.208 A mg‐−1Pt, which is likewise significantly greater than Pt/C. Notably, the power density reached 8.49 mW cm−2 when combined into the DEGFC anode. This work provides a good HEA catalyst in DEGFC, would promote the widespread use of HEA materials in other electrocatalysis.
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