A Development of Ethanol/Percarbonate Membraneless Fuel Cell

Abstract

The electrocatalytic oxidation of ethanol on membraneless sodium percarbonate fuel cell using platinum electrodes in alkalineacidic media is investigated. In this cell, ethanol is used as the fuel and sodium percarbonate is used as an oxidant for the first time in an alkaline-acidic media. Sodium percarbonate generates hydrogen peroxide in aqueous medium. At room temperature, the laminar-flow-based microfluidic membraneless fuel cell can reach a maximum power density of 18.96 mW cm −2 with a fuel mixture flow rate of 0.3 mL min −2 . The developed fuel cell features no proton exchange membrane. The simple planar structured membraneless ethanol fuel cell presents with high design flexibility and enables easy integration of the microscale fuel cell into actual microfluidic systems and portable power applications.

Product Analysis of Operating an Ethanol/O2Biofuel Cell Shows the Synergy between Enzymes within an Enzymatic Cascade

“…Therefore, they have been widely used in the preparation of bioanodes for biosensors, 11,12 microfluidic fuel cells 13 and biological fuel cells based on ethanol oxidation. [14][15][16] Biofuel cells can combine cascades of environmentally friendly oxidation catalysts that facilitate multiple oxidation steps. 17 Enzymatic pathways to completely oxidize such fuels has been proposed before.…”

Effective Synthesis Procedure Based on Microwave Heating of the PdCo Aerogel Electrocatalyst for Its Use in Microfluidic Devices

“…In addition, maximum current densities of 330 and 80 mA cm –2 were achieved with PdCo-MW and Pd-MW, respectively (Figure a). It is important to note that the high OCV values are due to the properties of the catalytic material in combinations with the pH gradient in the system (anolyte and catholyte), as has already been reported in some studies. − …”

Membraneless ethanol fuel cell Pt–Sn–Re nano active catalyst on a mesoporous carbon support

“…This shi is an indication of the lattice parameter. [27][28][29][30][31][32][33][34][35] 3.1.2. Scanning electron microscopy (SEM) analysis.…”

“…As illustrated by the XRD results, the addition of Sn consider the expansion of the Pt-Pt lattice spaces. 35 The extended Pt-Pt lattice space might assist the dissociative adsorption of much bigger ethanol molecules in the lower potential area, and therefore increase the ethanol electrooxidation. However, the addition of Re into Pt/MC and Pt-Sn/ MC led to breaking the C-C bond.…”