LEADER 04431oam 2200505 450 001 9910824591503321 005 20190911112729.0 010 $a981-4458-98-8 035 $a(OCoLC)851695140 035 $a(MiFhGG)GVRL8QYU 035 $a(EXLCZ)992550000001096042 100 $a20130226h20132013 uy 0 101 0 $aeng 135 $aurun|---uuuua 181 $ctxt 182 $cc 183 $acr 200 00$aPolyoxometalate chemistry $esome recent trends /$feditor, Francis Secheresse, Universite de Versailles-St. Quentin, France 210 $aHackensack [NJ] $cWorld Scientific$dc2013 210 1$aNew Jersey :$cWorld Scientific,$d[2013] 210 4$d?2013 215 $a1 online resource (xiii, 309 pages) $cillustrations (some color) 225 0 $aWorld Scientific series in nanoscience and nanotechnology ;$vv. 8 300 $aDescription based upon print version of record. 311 $a981-4458-97-X 311 $a1-299-71366-1 320 $aIncludes bibliographical references and index. 320 $aIncludes bibliographical references. 327 $aCOLOR PLATE 36 Chapter 1 Polyoxometalate-Protected Metal Nanoparticles: Synthesis, Structure and Catalysis Yifeng Wang and Ira A. Weinstock; 1. Introduction; 2. Synthesis of Polyoxometalate Stabilized Metal(0) Nanoparticles; 2.1. Control over shape and size; 2.2. Ir and Ru nanoparticles by H2 reduction; 2.3. Reactions of metal salts with reduced polyoxometalate anions; 2.3.1. Synthesis of nanoparticles; 2.3.2 Synthesis of complex nanostructures; 2.4. Ligand-exchange reactions; 3. Structures of Inorganic Cluster Anions Stabilized Nanoparticles 327 $a3.1. Evidence for the stabilization of metal(0) nanoparticles by polyoxometalates 3.2. Direct imaging of POM-ligand monolayers by cryo-TEM; 3.3. Electric double layer of a polyoxometalate-stabilized nanoparticle; 4. Application of POM-stabilized Au NPs in Catalysis; 4.1. Hydrogenation reactions using POM-stabilized metal NPs; 4.2. Molecular oxygen activation reactions for organic synthesis; 4.3. Other organic reactions catalyzed by polyoxometalate-stabilized metal nanoparticles; 4.4. Electrocatalysis; 5. Closing Comments; References 327 $aChapter 2 When Giants Meet Dwarves in the Same Pond - Unique Solution Physical Chemistry Opportunities Offered by Polyoxometalate Macroions Dong Li, Panchao Yin and Tianbo Liu 1. Introduction and Retrospection; 1.1. Derivation of the Debye-Hu?ckel's limiting theory5; 1.2. General features of the DLVO theory; 1.2.1. DLVO potential and the primary and secondary minima; 1.2.2. Limitations of the DLVO theory; 2. Characterization of Macroion Solution Behaviors; 2.1. Polyoxometalates (POMs) type macroanions; 2.1.1. Characterization of the self-assembly of POM macroanions in dilute solutions 327 $a2.1.2. The driving forces that responsible for the unexpected self-assembly of macroanions 2.1.2.1. Van der Waals attractions; 2.1.2.2. Hydrogen bonding; 2.1.2.3. Counterions mediated attractions; a) Interactions between discrete macroions and counterions; b) Effect of surface charge density; c) Effect of counterion valence state and counterion hydrated size; d) Effect of ionic strength; 2.1.2.4. Solvent effect; 2.1.3. Kinetics of the blackberry formation; 2.1.3.1. Long equilibrium time; 2.1.3.2. High activation energy; 2.1.3.3. Slow nucleation and fast aggregation 327 $a2.2. Self-assembly of macrocations 330 $aThe book highlights recent prominent results in the domain of the synthesis of new polyoxometalates with a specific attention to polyoxothioanions, and provides some novelties and perspectives in selected domains such as magnetism, luminescence and nanochemistry, and macroions self-assembly in solutions. The case of "one-pot" syntheses often used and reported in POMs synthesis is studied in terms of more complex solution speciation processes related to highly dynamical situation connected to factors such as pH, ionic strength, reaction time, temperature, counterion nature, concentration of sta 410 0$aWorld Scientific series in nanoscience and nanotechnology ;$vv. 8. 606 $aPolyoxometalates 615 0$aPolyoxometalates. 676 $a546/.3 702 $aSecheresse$b Francis 801 0$bMiFhGG 801 1$bMiFhGG 906 $aBOOK 912 $a9910824591503321 996 $aPolyoxometalate chemistry$93938989 997 $aUNINA