Sökning: "NaBH4"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet NaBH4.

  1. 1. Mild Steam Explosion of Spruce Wood

    Författare :Kerstin Jedvert; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mild steam explosion; separation; spruce; galacto glucomannan; NaBH4;

    Sammanfattning : .... LÄS MER

  3. 2. Modifying kraft pulping to produce a softwood pulp requiring less energy in tissue paper production

    Författare :Hafizur Rahman; Per Engstrand; Mikael E. Lindström; Louise Logenius; Peter Sandström; Ulf Germgård; Mittuniversitetet; []
    Nyckelord :Modifying kraft pulp; tissue dewatering; polysulfide; sodium borohydride; tensile index; hemicellulose;

    Sammanfattning : Modification of softwood kraft pulp by the addition of either polysulfide (PS) or sodium borohydride (NaBH4) has been shown to increase the pulp yield due to a higher retention of glucomannan.  The pulps with higher yield gave a paper with higher tensile index than reference pulp, especially at lower degrees of refining. LÄS MER

  4. 3. Hydrogen Storage Materials : Design, Catalysis, Thermodynamics, Structure and Optics

    Författare :Carlos Moysés Graça Araújo; Rajeev Ahuja; Ole Martin Løvvik; Uppsala universitet; []
    Nyckelord :Materials science; Hydrogen-storage materials; Density functional theory; Molecular dynamics; Catalysis; Thermodynamics; Optics; Materialvetenskap;

    Sammanfattning : Hydrogen is abundant, uniformly distributed throughout the Earth's surface and its oxidation product (water) is environmentally benign. Owing to these features, it is considered as an ideal synthetic fuel for a new world energetic matrix (renewable, secure and environmentally friendly) that could allow a sustainable future development. LÄS MER

  5. 4. Hydrogen incorporation in Zintl phases and transition metal oxides- new environments for the lightest element in solid state chemistry

    Författare :Reji Nedum Kandathil; Ulrich Häussermann; Michael A. Hayward; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Zintl phases; metal hydrides; transition metal oxyhydrides; XRPD; NPD; Rietveld refinement; Materials Chemistry; materialkemi;

    Sammanfattning : This PhD thesis presents investigations of hydrogen incorporation in Zintl phases and transition metal oxides. Hydrogenous Zintl phases can serve as important model systems for fundamental studies of hydrogen-metal interactions, while at the same time hydrogen-induced chemical structure and physical property changes provide exciting prospects for materials science. LÄS MER

  7. 5. Analysis of DNA adducts of some low molecular weight aldehydes : methods development and application in human biomonitoring

    Författare :Jia-Long Fang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Malondialdehyde (MA), acetaldehyde (Aa) and methylglyoxal (MG) are ubiquitously present in the environment and endogenously formed in animals and humans. They have been shown to be genotoxic and to readily react with DNA to form DNA adducts under physiological conditions. LÄS MER