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  • 1.
    Boutonnet, Magali
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Technology.
    Lögdberg, Sara
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Technology.
    Elm Svensson, Erik
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Technology.
    Recent developments in the application of nanoparticles prepared from w/o microemulsions in heterogeneous catalysis2008In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 13, no 4, p. 270-286Article in journal (Refereed)
    Abstract [en]

    This paper reviews the use of microemulsions, especially the water-in-oil (w/o) microemulsions, for preparation of nanoparticles that are employed as catalyst components in heterogeneous catalytic reactions. The objective is to show the growing interest of using microemulsions in the preparation of different types of materials such as metals, single metal oxides or mixed metal oxides with a broad range of application in heterogeneous catalysis and also in electrocatalysis. In most cases, the catalytic material showed improved catalytic properties as a result of the special synthesis environment created by the microemulsions. Still, research is needed for a better understanding of such beneficial effects. In addition, this method needs improvements in order to produce, in an environmentally friendly way, a suitable amount of material for use in industrial-scale catalytic processes.

  • 2.
    Corkery, Robert W.
    Applied Mathematics Research School of Physical Sciences and Engineering Australian National University, Canberra, Australia.
    Metal organic framework (MOF) liquid crystals: 1D, 2D and 3D ionic coordination polymer structures in the thermotropic mesophases of metal soaps, including alkaline earth, transition metal and lanthanide soaps2008In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 13, no 4, p. 288-302Article in journal (Refereed)
    Abstract [en]

    aken together, the body of existing literature on metal soap crystal structures and mesophases supports the view that much is to be gained by treating the soaps as metal organic frameworks (MOF's) when relating their structure and liquid crystallinity. We argue that metal soaps mesophases often consist of disordered metal organic (carboxylate) frameworks (MOF's). Metal atoms are linked by bridging carboxylates, and the metal-oxygen networks form semi-flexible rods, chains and sheets of M-O polyhedra within their co-bonded, mesotructured, self-assemblies of lipidic chains. The packing of the molten hydrocarbon chains allows otherwise unconnected MOF networks to coexist as spatially isolated units in the same unit cell. For instance the lamellar phases are true 2D MOF's or layers of 1-D MOF's. The phase transitions can then be regarded as coupled disordering/re-ordering transitions involving rotational and conformational disordering of the hydrocarbon chains balanced with disordering of MOF symmetries, MOF topological transformations, depolymerizations and dimensionality reductions ultimately leading to anisotropic melts. By way of demonstration, thermotropic phase transitions of homologous series of lanthanide soaps are systematically studied using a variety of experimental methods, and the data are used in a topological model for testing the consistency with the MOF concept of metal soap crystal structures and thermotropic: mesophases. Finally, an interpenetrating bicontinuous MOF comprised of SrO6 polyhedral rods is presented as an atomically resolved model for the network topology of the cubic mesophase of strontium soaps. Metal soaps are therefore shown to afford a bridge between liquid crystals and metal organic framework (MOF) materials. 

  • 3. Ducker, William
    et al.
    Claesson, Per M.
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.
    Editorial Overview - Surface Forces2017In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 27, p. A1-A2Article in journal (Refereed)
  • 4.
    Furó, Istvan
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.
    Dvinskikh, Sergey V.
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.
    NMR: Spectroscopy and imaging2013In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 18, no 3, p. 165-165Article in journal (Refereed)
  • 5. Griffiths, P.
    et al.
    Stilbs, Peter
    KTH, Superseded Departments, Chemistry.
    NMR self-diffusion studies of polymeric surfactants2002In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 7, no 04-mar, p. 249-252Article, review/survey (Refereed)
    Abstract [en]

    The ability to visualise and quantify the mobility of particular components in multi-component solutions has had a profound impact on colloid science because the mobility of the species under investigation is determined not only by its chemical structure and size, but also by the physical environment in which it is located. These considerations are of course central to medical imaging (MRI) [1] and the MRI community has greatly benefited from the 'colloidal pioneers'. Thus, measurement and analysis of self-diffusion coefficients using the pulsed-gradient spin-echo nuclear magnetic resonance technique (PGSE-NMR, sometimes referred to as PFG-NMR) permits a non-perturbing in-situ probing of complex structure. This is especially true for colloid science since the characteristic structural dimensions are comparable to the displacements on the NMR timescale.

  • 6.
    Haviland, David B.
    KTH, School of Engineering Sciences (SCI), Applied Physics, Nanostructure Physics. Albanova.
    Quantitative force microscopy from a dynamic point of view2017In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 27, p. 74-81Article in journal (Refereed)
    Abstract [en]

    We discuss the physical origin and measurement of force between an atomic force microscope tip and a soft material surface. Quasi-static and dynamic measurements are contrasted and similarities are revealed by analyzing the dynamics in the frequency domain. Various dynamic methods using single and multiple excitation frequencies are described. Tuned multifrequency lockin detection with one reference oscillation gives a great deal of information from which one can reconstruct the tip–surface interaction. Intermodulation in a weakly perturbed high Q resonance enables the measurement of a new type of dynamic force curve, offering a physically intuitive way to visualize both elastic and viscous forces.

  • 7.
    Radiom, Milad
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.
    Ionic liquid–solid interface and applications in lubrication and energy storage2019In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 39, p. 148-161Article in journal (Refereed)
    Abstract [en]

    Room-temperature ionic liquids (ILs) exhibit many attractive properties in proximity to solid surfaces. Primarily, they form well-defined interfacial layers that are tunable — electrically and thermally — as well as being stable — mechanically, electrically, and thermally — over a wide range. Recent investigations have aimed at understanding the molecular structuring of ILs at their interface with solids and in confinement, while in tandem, ILs are used as next-generation lubricants and energy storage materials. The result is a large volume of work that has appeared over the last decade. In this review, the recent literature is presented and future research directions are discussed.

  • 8. Sanchez-Dominguez, M.
    et al.
    Pemartin, K.
    Boutonnet, Magali
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Technology.
    Preparation of inorganic nanoparticles in oil-in-water microemulsions: A soft and versatile approach2012In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 17, no 5, p. 297-305Article, review/survey (Refereed)
    Abstract [en]

    In this review, the synthesis of inorganic nanoparticles using oil-in-water (O/W) microemulsions as confined reaction media is discussed. Synthesis using (O/W) microemulsions has been demonstrated for a great variety of inorganic nanoparticles: metallic (Pt, Pd, Rh, Ag), single metal oxides (CeO 2, ZrO 2, TiO 2, Fe 2O 3), mixed and doped metal oxides (Ce 0.5Zr 0.5O 2, Ce 0.99Eu 0.01O 2, Zr 0.99Eu 0.01O 2, and Fe 2Mn 0.5Zn 0.5O 4), semiconductors (PbS, CdS, Ag 2S, ZnS, CdSe, PbSe, Ag 2Se), fluorides (CaF 2, YF 3, NdF 3, PrF 3), phosphates (CePO 4, HoPO 4), and chromates (BaCrO 4 and PbCrO 4). There are two synthetic strategies: 1) the use of oil-in water (O/W) microemulsions, in which the precursor is an ionic salt which is dissolved in the continuous aqueous phase; and 2) use of O/W microemulsions, in which the precursor is an organometallic salt dissolved in the oil droplets of the microemulsion. The latter approach keeps more resemblance to the typical W/O microemulsion reaction method, as it has the greatest level of precursor confinement.

  • 9.
    Stilbs, Peter
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Physical Chemistry.
    Furo, Istvan
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Physical Chemistry.
    Electrophoretic NMR2006In: Current Opinion in Colloid & Interface Science, ISSN 1359-0294, E-ISSN 1879-0399, Vol. 11, no 1, p. 3-6Article, review/survey (Refereed)
    Abstract [en]

    The current status of the title subject and its applications in the fields of colloid and surfactant science are reviewed.

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