2020
Ionic cross-linked polyvinyl alcohol tunes vitrification and cold-crystallization of sugar alcohol for long-term thermal energy storage
Yazdani M, Etula J, Zimmerman J, Seppälä A. Ionic cross-linked polyvinyl alcohol tunes vitrification and cold-crystallization of sugar alcohol for long-term thermal energy storage. Green Chemistry 2020, 22: 5447-5462. DOI: 10.1039/d0gc01427c.Peer-Reviewed Original ResearchX-ray diffractionDifferential scanning calorimetryPolyvinyl alcoholThermogravimetric analysisPhase change materialElectron microscopy-energy dispersive X-ray spectroscopyCross-linked polyvinyl alcoholStrong intermolecular interactionsDispersive X-ray spectroscopyUnique propertiesCross-linked matrixMaterials unique propertiesX-ray spectroscopyHydrogen bondingIntermolecular interactionsCross linkerOptical microscopyPolymeric matrixUndesired crystallizationFourier transformScanning calorimetryNew sustainable materialsChange materialsPVA matrixThermal stability
2019
Tailored mesoporous biochar sorbents from pinecone biomass for the adsorption of natural organic matter from lake water
Yazdani M, Duimovich N, Tiraferri A, Laurell P, Borghei M, Zimmerman J, Vahala R. Tailored mesoporous biochar sorbents from pinecone biomass for the adsorption of natural organic matter from lake water. Journal Of Molecular Liquids 2019, 291: 111248. DOI: 10.1016/j.molliq.2019.111248.Peer-Reviewed Original ResearchNatural organic matterPost-pyrolysis processPinecone biomassNOM adsorptionLC-OCDThermogravimetric analysisReal lake water samplesPristine biocharTeller (BET) surface area measurementsRemarkable surface areaLake waterComplex humic substancesLow molar mass fractionMesoporous biocharLake water samplesRemoval capacitySurface area measurementsMore alkaline solutionsMolar mass fractionsOrder kinetic modelHigh thermal stabilitySurface chemistryPore size distributionRe-adsorption capacityNOM fractions