6533b851fe1ef96bd12a8f0f

RESEARCH PRODUCT

Phosphoric Acid Doped Polybenzimidazole (PBI)/Zeolitic Imidazolate Framework Composite Membranes with Significantly Enhanced Proton Conductivity under Low Humidity Conditions

Jorge EscorihuelaOscar SahuquilloEnrique GiménezVicente CompañAbel García-bernabé

subject

Proton conductivityMaterials scienceProtonGeneral Chemical EngineeringComposite numberProton exchange membrane fuel cellZeolitic imidazoleate framework02 engineering and technologyConductivity010402 general chemistry01 natural sciencesArticlelcsh:ChemistryProton exchange membranechemistry.chemical_compoundCIENCIA DE LOS MATERIALES E INGENIERIA METALURGICAProton transportGeneral Materials ScienceCompostos organometàl·licsPhosphoric acidConductivitat elèctrica021001 nanoscience & nanotechnologyPolybenzimidazole0104 chemical sciencespolybenzimidazoleMembranelcsh:QD1-999Chemical engineeringchemistryproton conductivityMAQUINAS Y MOTORES TERMICOSzeolitic imidazolate framework0210 nano-technologyproton exchange membraneZeolitic imidazolate framework

description

The preparation and characterization of composite polybenzimidazole (PBI) membranes containing zeolitic imidazolate framework 8 (ZIF-8) and zeolitic imidazolate framework 67 (ZIF-67) is reported. The phosphoric acid doped composite membranes display proton conductivity values that increase with increasing temperatures, maintaining their conductivity under anhydrous conditions. The addition of ZIF to the polymeric matrix enhances proton transport relative to the values observed for PBI and ZIFs alone. For example, the proton conductivity of PBI@ZIF-8 reaches 3.1 10&minus

yearjournalcountryeditionlanguage
2018-09-01Nanomaterials
https://doi.org/10.3390/nano8100775