Hydrogen Production via Electroreforming

Colmati, Flávio; Bastos, Tarso Leandro; Lino, Fernando M. de Amorim; Linares, J.

doi:10.1016/b978-0-12-819727-1.00052-2

Cited by 1 publication

(3 citation statements)

References 158 publications

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“…They have the advantage that the hydrogen produced is of high purity. However, they also present some challenges, such as low efficiency [11][12]. Methanol is introduced at the anode, while no reactant is introduced at the cathode.…”

Section: Anodementioning

confidence: 99%

“…In Eqs. (R4-R6) are presented the half-reactions taking place at the anode, cathode and the overall reaction, respectively [11][12].…”

Section: Anodementioning

confidence: 99%

“…To achieve this effect, there is a refrigerated and heating circulator (10) which circulates distilled water to a heat exchanger (11) at the temperature required to increase or decrease the temperature inside the chamber. To force the recirculation of air between the two chambers, a fan is connected to the heat exchanger and powered by a power source (12). Finally, a potentiostat-galvanostat ( 14) connected to a computer ( 15) is used to control the voltage values at which the DMFC operates, while the current and impedance parameters are recorded during the tests for subsequent analysis.…”

Section: Experimental Test Benchmentioning

confidence: 99%

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Test Bench for Electricity Or Hydrogen Production from Aqueous Methanol

Meca

d’Amore-Domenech

Villalba-Herreros

et al. 2023

36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 20

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The growing demand for renewable energy sources, sometimes far from the place of consumption, has led to consider the conversion of these energies into fuels, allowing its transport and storage. This is the case of hydrogen, which can be transported in form of methanol, more suitable for transport and storage, obtained by the synthesis process of CO2 and hydrogen. In this way, the application of methanol as an energy vector arises. Once methanol reaches its place of use, it can be used as a fuel in Direct Methanol Fuel Cells (DMFC) or transformed back into hydrogen using methanol electrolysis. However, there are at present several challenges to be forced. While DMFC present several still unsolved issues such as poor methanol oxidation reaction, fuel crossover or high demand of noble metal, methanol electrolysers have operational limits produced by problems related to active site blockage by the formation of adsorbed carbonaceous species, sluggish kinetics, or methanol crossover. For the study of DMFC and methanol electrolysers and implement improvements in their design, a test bench that allows testing both devices independently has been designed and built. It allows plotting polarization curves, analysing crossover and developing electrochemical impedance spectroscopy studies, as well as the control of operating temperature of the devices, the mass flow, pressure and temperature of the oxygen or nitrogen introduced in the DMFC and methanol flow rate. These features will become key factors for the development of technologies for improving the use of methanol as an energy vector.

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Section: Anodementioning

confidence: 99%

“…In Eqs. (R4-R6) are presented the half-reactions taking place at the anode, cathode and the overall reaction, respectively [11][12].…”

Section: Anodementioning

confidence: 99%