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Electrodeposition of Pd and Pt electrocatalysts on the entire structure of carbon paper and carbon nanofoam enhances the glycerol electro-oxidation.

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A membraneless nanofluidic fuel cell with flow-through electrodes that works with several fuels (individually or mixed): methanol, ethanol, glycerol and ethylene-glycol in alkaline media is presented. For this application, an efficient Cu@Pd electrocatalyst was synthesized and tested, resulting outstanding performance until now reported, opening the possibility of power nano-devices for multi-uses purposes, regardless of fuel re-charge employed.

A rechargeable ZAB was assembled using a NiCo2O4 3DOM spinel displaying an open circuit potential of 1.44 V, a power density of 101 mW cm−2, and a high durability during charge/discharge cycling (being operated for 21 h).