Evaluation of a Passive Anion‐Exchange Membrane Micro Fuel Cell Using Glycerol from Several Sources

Abstract

This paper addresses energy generated in a passive anion‐exchange membrane micro fuel cell (PAEMμFC) using glycerol from several kinds of sources: high‐purity glycerol (HPG), saponification process‐derived glycerol (SPDG), crude glycerol from sunflower oil biodiesel (CGSOB) and crude glycerol from cooking oil biodiesel (CGCOB). Spectrophotometry, volumetric Karl Fischer, gas chromatography, calorimetry, Fourier transform infrared, and cyclic voltammetry were employed for the glycerol samples characterization. The PAEMμFC was tested using 0.1M glycerol of each type, achieving power densities of 1.008, 0.932, 0.871, and 0.865 mW cm−2 for HPG, SPDG, CGSOB and CGCOB, respectively. On the other hand, commercially available software from ANSYS, Inc. was used to determine the fuel velocity and pressure in the fuel reservoir and current collector as a complementary evaluation of the PAEMμFC. The results obtained for the prices of the energy of each glycerol sample were presented in order to demonstrate that the cost of energy generated through HPG is approximately 16.5 times the SPDG energy cost and 130 times the CGCOB energy cost.

Effect of the AuNPs Biosynthesized Used as Anodes on the Performance of a Human Blood Paper-Based Microfluidic Fuel Cell

“…This design was matched on the design previously reported [18]. Catalytic mixtures were elaborated using AuNPs and Pt/C, as anode and cathode, respectively, as follows: First, for the preparation of the platinum mixture, for each gram of this catalyst 73 µL of isopropyl alcohol and 7 µL of Nafion were added and were mixed homogeneously using a vortex and subsequently sonicated for 20 minutes [19]. On the other hand, for the preparation of the AuNPs mixture; 10 mg of each EF previously described in this section (EFC, EFMD, EFPD and EFS) were mixed with carbon Vulcan (XC-72) and 20 µL of Nafion.…”

Passive Small Direct Alcohol Fuel Cells for Low-Power Portable Applications: Assessment Based on Innovative Increments since 2018

“…As the power output of the device was affected by GDL morphological defects and AEM stabilities, in addition to MEA manufacturing, further investigations of the alkaline fuel cells are needed to address this problem, since it is vital for the long-term operation of PS-DGFCs. In line with this necessity, Olivares-Ramírez et al [169] reported a study focused on the evaluation of the energy generated in AEM-based PS-DGFCs using glycerol from different sources, namely, high-purity glycerol (HPG), saponification process-derived glycerol (SPDG), crude glycerol from sunflower oil biodiesel (CGSOB), and crude glycerol from cooking oil biodiesel (CGCOB). The device used was assembled by sandwiching the MEA between two epoxy-based SU-8 CCs and placing them between two PMMA pieces.…”

“…Figure 17. Schematic drawing showing the cross-section of the assembled AEM-based PS-DGlyFC.Reproduced from[169] with permission from John Wiley and Sons 2019.…”

Glycerol Electro-Oxidation in Alkaline Media and Alkaline Direct Glycerol Fuel Cells

“…As previously reported, crude GLY is more than four times cheaper than refined GLY, but ADGFC tests reported in Table 4 were generally carried out using high purity glycerol as the fuel. In some cases, however, the performance of ADGFC fueled with refined GLY was compared to that ADGFC fuel with crude GLY [33,54,129,136]. Zhang et al [33] compared the performance of ADGFCs with different anode catalysts (Pt/C, Pd/C and Au/C) fueled with pure GLY to that of the corresponding ADGFC fueled with crude GLY.…”