Impact of fuel cells on hydrogen energy pathways in a sustainable energy economy

Abstract

The drive to decarbonise the electricity and transport industries when transitioning from a Fossil Fuel Economy to a Hydrogen Economy requires careful consideration of techno-environmental implications. National and regional strategies...

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

“…DES is defined as a liquid mixture with a significantly lower melting point than its constituent components. 5 There are several types of DES, categorized based on their hydrogen bond acceptor (HBA) and hydrogen bond donor (HBD):…”

“…DES is defined as a liquid mixture with a significantly lower melting point than its constituent components . There are several types of DES, categorized based on their hydrogen bond acceptor (HBA) and hydrogen bond donor (HBD): Type I DES: Quaternary ammonium salt as the HBA and a metal halide as the HBD Type II DES: Quaternary ammonium salt as the HBA and a metal halide hydrate as the HBD Type III DES: Quaternary ammonium salt as the HBA and an organic HBD Type IV DES: Metal halide hydrate as the HBA and an organic HBD Hybrid DES: Include three or more ions as part of the DES system …”

“…While batteries produce electricity using stored energy, fuel cells generate power using hydrogen-rich fuel. 5 Deep eutectic solvents present a promising avenue for sustainable electrolytes in batteries and fuel cells. 6,7 DES enable biosubstitution opportunities and improved ion recovery, enhancing electrolyte performance.…”

Designing a membrane electrode assembly for weakly humidity-dependent proton exchange membrane fuel cells

“…Proton exchange membrane fuel cells (PEMFCs) have great potential as a power source of vehicles due to the advantages of low carbon and environmental friendliness. [1][2][3][4][5][6] The heart of the PEMFC is the membrane electrode assembly (MEA), which directly determines the performance of the fuel cells. Usually, the MEA is a sandwich structure, including the bipolar catalysts and the gas diffusion layers with a PEM as a symmetrical center.…”

Probing the effect of metal to ligand charge transfer on the oxygen evolution reaction in Au incorporated Co(OH)2 thin film electrocatalysts

“…3 However, the production of H 2 from fossil fuels leads to the undesired release of carbon dioxide (CO 2 ) that contributes to the greenhouse effect [4][5][6] and is an unviable approach to a sustainable energy economy. 7 Producing hydrogen from water is being investigated extensively due to the potential for this approach to be clean, as the energy input to split water can be sourced from wind and solar. Current methods to produce hydrogen from water such as thermochemical water splitting, direct thermal decomposition, and photocatalytic water splitting have several drawbacks that include high consumption of energy and/or technological difficulty for large-scale production.…”