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View article: Reducible tungsten(VI) oxide-supported ruthenium(0) nanoparticles: highly active catalyst for hydrolytic dehydrogenation of ammonia borane
Reducible tungsten(VI) oxide-supported ruthenium(0) nanoparticles: highly active catalyst for hydrolytic dehydrogenation of ammonia borane Open
Reducible WO3 powder with a mean diameter of 100 nm is used as support to stabilize ruthenium(0) nanoparticles. Ruthenium(0) nanoparticles are obtained by NaBH4 reduction of ruthenium(III) precursor on the surface of WO3 support at room te…
View article: How to increase the catalytic efficacy of platinum‐based nanocatalysts for hydrogen generation from the hydrolysis of ammonia borane
How to increase the catalytic efficacy of platinum‐based nanocatalysts for hydrogen generation from the hydrolysis of ammonia borane Open
It reports how to increase the overall catalytic performance of precious platinum nanocatalysts in hydrolytic dehydrogenation of ammonia borane which requires enhancement of both catalytic activity and reusability of the nanocatalysts as w…
View article: A review of the catalytic conversion of glycerol to lactic acid in the presence of aqueous base
A review of the catalytic conversion of glycerol to lactic acid in the presence of aqueous base Open
A critical review of the reports on the catalytic conversion of glycerol to lactic acid in an aqueous alkaline medium by considering the reaction conditions, catalytic activity for glycerol conversion and selectivity for lactic acid.
View article: LaMer's 1950 model of particle formation: a review and critical analysis of its classical nucleation and fluctuation theory basis, of competing models and mechanisms for phase-changes and particle formation, and then of its application to silver halide, semiconductor, metal, and metal-oxide nanoparticles
LaMer's 1950 model of particle formation: a review and critical analysis of its classical nucleation and fluctuation theory basis, of competing models and mechanisms for phase-changes and particle formation, and then of its application to silver halide, semiconductor, metal, and metal-oxide nanoparticles Open
Are classical nucleation theory and the 1950 LaMer model of particle formation supported for a wide range of particle formations, or do competing models in the form of chemical reaction mechanisms have better experimental support? Read on …
View article: C-13- and P-31-NMR study of tetracarbonylbis(diphenylphosphino)alkanemetal(0) complexes of the group 6 elements
C-13- and P-31-NMR study of tetracarbonylbis(diphenylphosphino)alkanemetal(0) complexes of the group 6 elements Open
Tetracarbonylbis(diphenylphosphino)alkanemetal(0) complexes of the general formula M(CO)(4)[(C-6 H-5)(2) P (CH2)(n) P(C6H5)(2)] (M: Cr, Mo, W; n: 1, 2, 3) were synthesized from the reaction of M(CO)(4) (eta(2:2)-1,5-cyclooctadiene) with th…
View article: Ceria Supported Nickel(0) Nanoparticles: A Highly Active and Low Cost Electrocatalyst for Hydrogen Evolution Reaction
Ceria Supported Nickel(0) Nanoparticles: A Highly Active and Low Cost Electrocatalyst for Hydrogen Evolution Reaction Open
Herein, we report the development of a nickel-based catalyst obtained by reduction of Ni(2+)ions on the surface of ceria nanopowder using aqueous solution of NaBH4. The catalyst was characterized by X-ray diffraction (XRD), transmission el…
View article: Particle Size Distributions via Mechanism-Enabled Population Balance Modeling
Particle Size Distributions via Mechanism-Enabled Population Balance Modeling Open
Mechanism-enabled population balance modeling (ME-PBM) was recently defined as the use of experimentally established (i.e., disproof-based, deliberately minimalistic, and pseudo-elementary step-based) mechanisms as more rigorous input for …
View article: Dust Effects on Ir(0)<sub>n</sub> Nanoparticle Formation Nucleation and Growth Kinetics and Particle Size-Distributions: Analysis by and Insights from Mechanism-Enabled Population Balance Modeling
Dust Effects on Ir(0)<sub>n</sub> Nanoparticle Formation Nucleation and Growth Kinetics and Particle Size-Distributions: Analysis by and Insights from Mechanism-Enabled Population Balance Modeling Open
The effects of microfiltration removal of filterable dust on nanoparticle formation kinetics and particle-size distribution, in a polyoxometalate polyanion (P2W15Nb3O629-)-stabilized Ir(0)n nanoparticle formation system, are analyzed by th…
View article: Mechanism-Enabled Population Balance Modeling of Particle Formation en Route to Particle Average Size and Size Distribution Understanding and Control
Mechanism-Enabled Population Balance Modeling of Particle Formation en Route to Particle Average Size and Size Distribution Understanding and Control Open
The concept of Mechanism-Enabled Population Balance Modeling (ME-PBM) is reported, illustrated by its application to a prototype Ir(0)n nanoparticle formation reaction. ME-PBM is defined herein as the use of now available, experimentally e…
View article: LaMer’s 1950 Model for Particle Formation of Instantaneous Nucleation and Diffusion-Controlled Growth: A Historical Look at the Model’s Origins, Assumptions, Equations, and Underlying Sulfur Sol Formation Kinetics Data
LaMer’s 1950 Model for Particle Formation of Instantaneous Nucleation and Diffusion-Controlled Growth: A Historical Look at the Model’s Origins, Assumptions, Equations, and Underlying Sulfur Sol Formation Kinetics Data Open
A look back at LaMer's 1950 model of particle formation is undertaken (LaMer, V. K.; Dinegar, R H. Theory, Production and Mechanism of Formation of Monodispersed Hydrosols. J. Am. Chem. Soc. 1950, 72, 4847-4854), a highly cited paper that …
View article: Immobilized Polyoxomolybdate Nanoclusters on Functionalized SBA‐15: Green Access to Efficient and Recyclable Nanocatalyst for the Epoxidation of Alkenes
Immobilized Polyoxomolybdate Nanoclusters on Functionalized SBA‐15: Green Access to Efficient and Recyclable Nanocatalyst for the Epoxidation of Alkenes Open
A heterogeneous nanocatalyst containing polyoxomolybdate immobilized on the internal surface of amino‐functionalized SBA‐15 pores was prepared and fully characterized by several analytical techniques. The textural property of supported mat…
View article: Nanoparticle Formation Kinetics and Mechanistic Studies Important to Mechanism-Based Particle-Size Control: Evidence for Ligand-Based Slowing of the Autocatalytic Surface Growth Step Plus Postulated Mechanisms
Nanoparticle Formation Kinetics and Mechanistic Studies Important to Mechanism-Based Particle-Size Control: Evidence for Ligand-Based Slowing of the Autocatalytic Surface Growth Step Plus Postulated Mechanisms Open
Ligands are known to affect the formation, stabilization, size, and size-dispersion control of transition-metal and other nanoparticles, yet the kinetic and mechanistic basis for such ligand effects remains to be elucidated and then couple…
View article: “Weakly Ligated, Labile Ligand” Nanoparticles: The Case of Ir(0)<i><sub>n</sub></i>·(H<sup>+</sup>Cl<sup>–</sup>)<i><sub>m</sub></i>
“Weakly Ligated, Labile Ligand” Nanoparticles: The Case of Ir(0)<i><sub>n</sub></i>·(H<sup>+</sup>Cl<sup>–</sup>)<i><sub>m</sub></i> Open
It is of considerable interest to prepare weakly ligated, labile ligand (WLLL) nanoparticles for applications in areas such as chemical catalysis. WLLL nanoparticles can be defined as nanoparticles with sufficient, albeit minimal, surface …
View article: Oxidation of o‐phenylenediamine to 2,3‐diaminophenazine in the presence of cubic ferrites MFe<sub>2</sub>O<sub>4</sub> (M = Mn, Co, Ni, Zn) and the application in colorimetric detection of H<sub>2</sub>O<sub>2</sub>
Oxidation of o‐phenylenediamine to 2,3‐diaminophenazine in the presence of cubic ferrites MFe<sub>2</sub>O<sub>4</sub> (M = Mn, Co, Ni, Zn) and the application in colorimetric detection of H<sub>2</sub>O<sub>2</sub> Open
Metal ferrites nanocrystallites, MFe 2 O 4 (M = Mn, Co, Ni, Zn) were prepared by coprecipitation method and characterized by a combination of physico‐chemical and spectroscopic techniques. MFe 2 O 4 nanoparticles having particle size in th…