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- W3186145006 abstract "Given the low conductivity, poor catalytic activity, and high cost of traditional noble metal-oxygen evolution reaction (OER) electrocatalysts, it is urgent to develop electrocatalysts with high efficiency, durability, low cost, high exposed active surface, and excellent electrical conductivity. The Silver nanowire@Polypyrrole (AgNWs@PPy) aerogels were synthesized by freeze-drying method, and then nano-CoNi alloy was grown on the surface of AgNWs@PPy aerogels framework by solvothermal method, and AgNWs@PPy@CoNi aerogels with good OER electrocatalytic performance was obtained. The results showed that the catalytic performance of AgNWs@PPy@CoNi aerogels first increased and then weakened with the increase of Co2+ and Ni2+ concentrations. When the Co2+ and Ni2+ concentrations were 0.0175 mol/L, the AgNWs@PPy@CoNi aerogels exhibited high current density. At 10 mA·cm−2, the overpotential is 346 mV, and the Tafel slope is 86.25 mV·dec−1. After a 10-hour stability test under a constant voltage, the current retention rate reaches 93.9%, which has good stability. The three-dimensional independent AgNWs@PPy aerogels provide excellent electrical conductivity, and the CoNi alloy provides abundant active sites. The combined effect of them shows excellent OER catalytic performance, which is expected to replace precious metal catalysts and become a new type of OER catalytic material." @default.
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- W3186145006 date "2021-04-01" @default.
- W3186145006 modified "2023-09-23" @default.
- W3186145006 title "Synthesis and electrocatalytic oxygen evolution performances of high conductivity silver nanowire@polypyrrole@CoNi alloy aerogels" @default.
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