RT info:eu-repo/semantics/article
T1 Porous organic polymers as ionomers for high-performance alkaline membrane water electrolysis
A1 Rico Martínez, Sandra
A1 Hyeon Keun, Cho
A1 Chuan, Hu
A1 Young Jun, Lee
A1 Miguel García, Jesús Ángel
A1 Lozano, Ángel E.
A1 Moo Lee, Young
K1 Polímeros
K1 Alkaline membrane water electrolyzer
K1 Ionomer
K1 Porous organic polymers
K1 High performance
K1 Water splitting
K1 2210 Química Física
AB The pressing nature of the climate emergency, coupled with the depletion of fossil fuel reserves, underscores the critical need for renewable energy alternatives, in which green hydrogen is recognized as a viable, environmentally sustainable energy option that has gained substantial interest in recent years.Unlike methods dependent on petroleum processing, green hydrogen production revolves around water splitting through electrolysis, powered by electricity generated from solar power or other renewable sources, and it has been suggested as a pathway to achieve carbon neutrality within thecoming decades. Traditional alkaline water electrolyzers typically employ highly concentrated alkaline solutions, presenting drawbacks such as accelerated corrosion, and vulnerabilityto ambient CO2, leading to electrode blockages and reduced conductivity. In response to these challenges, polymer electrolyte water electrolysis systems like proton exchange membrane water electrolyzers and AEMWEs have emerged as prominent solutions. The main component of the AEMWE system is the membrane electrode assembly (MEA), consisting of an AEM, ionomers, and catalysts. The AEM acts as a barrier, separating the anode and cathode electrodes to prevent gas crossover, whereas the ionomers act as binders, linking or stabilizing catalyst particles while facilitating ion transport. Over the past decades, significant advancements have been achieved in highperformance AEM development. However, the significance of ionomer design often goes unnoticed. Typically, ionomers are chosen with identical or similar structures as AEMs, yet the different working conditions of AEMs and ionomers requiredifferent properties. Ionomers must possess high water and gas permeability, electrochemical stability, and low catalyst adsorption ability.
PB Wiley
SN 1864-5631
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/70911
UL https://uvadoc.uva.es/handle/10324/70911
LA eng
NO ChemSusChem, Septiembre 2024, vol.
NO Producción Científica
DS UVaDOC
RD 26-dic-2024