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Electrocatalytic hydrogen production by bulk and nano Fe2O3 and carbon nanotube modified with Fe2O3

04-Jan-2015 | Author(s): Abolfazl Akhtar , Ali Ghaffarinejad , S.M.R. Milani Hosseini , Faranak Manteghi , Nafiseh Maminejad, Journal of Electroanalytical Chemistry, 2015

Publication date: 15 February 2015 Source:Journal of Electroanalytical Chemistry, Volume 739 Author(s): Abolfazl Akhtar , Ali Ghaffarinejad , S.M.R. Milani Hosseini , Faranak Manteghi , Nafiseh Maminejad Industrial iron sludge was used for the production of bulk Fe2O3, Fe2O3 ...

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A Many-Body Hamiltonian for Nanoparticles Immersed in a Polymer Solution

02-Jan-2015 | Clifford E. Woodward; Jan Forsman, Langmuir, 2015

We developed an analytical theory for the many-body potential of mean force (POMF) between N spheres immersed in a continuum chain fluid. The theory is almost exact for a Θ polymer solution in the protein limit (small particles, long polymers), where N-body effects are important. Polydispersity ...

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Evaluation of Nanoparticle–Ligand Distributions To Determine Nanoparticle Concentration

30-Dec-2014 | Uvaraj Uddayasankar; Ravi T. Shergill; Ulrich J. Krull, Analytical Chemistry, 2014

The concentration of nanoparticles in solution is an important, yet challenging, parameter to quantify. In this work, a facile strategy for the determination of nanoparticle concentration is presented. The method relies on the quantitative analysis of the inherent distribution of ...

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Ion‐transport study in nanocomposite solid polymer electrolytes based on chitosan: Electrical and dielectric analysis

29-Dec-2014 | Shujahadeen B. Aziz, Zul Hazrin Z. Abidin, Journal of Applied Polymer Science, 2014

ABSTRACT In this study, (1.1111 − x)(0.9CS–0.1NaTf)xAl2O3(0.02 ≤ x ≤ 0.1) [where CS is chitosan, NaTf is sodium triflate (NaCF3SO3), and Al2O3 is aluminum oxide] nanocomposite solid polymer electrolyte (SPE) films based on CS were prepared by a solution casting technique. X‐ray diffraction ...

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Simulation Guided Design of Globular Single-Chain Nanoparticles by Tuning the Solvent Quality

24-Dec-2014 | Federica Lo Verso; Jose A. Pomposo; Juan Colmenero; Angel Moreno, Soft Matter, 2014

The control of primary and further structures of individual folded/collapsed synthetic polymers has received significant attention in recent years. However, the synthesis of single-chain nanoparticles (SCNPs) showing a compact, globular conformation in solution has turned out so far highly ...

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Effects of Sodium Dodecyl Sulfate on Structures of Poly(N-isopropylacrylamide) at the Particle Surface

23-Dec-2014 | Peng Wei Zhu, Journal of Physical Chemistry B, 2014

The effect of sodium dodecyl sulfate (SDS) on the poly(N-isopropylacrylamide) (PNIPAM) tethered to nanoparticles was experimentally investigated using dynamic light scattering below the lower critical solution temperature. A mean-field analytical model was used to calculate the parameters of ...

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Molecules, Vol. 20, Pages 52-69: Effect of Monomer Dosing Rate in the Preparation of Mesoporous Polystyrene Nanoparticles by Semicontinuous Heterophase Polymerization

23-Dec-2014 | Sosa, Dalia Y.; Guillén, Lourdes ; Saade, Hened ; Mendizábal, Eduardo ; Puig, Jorge E.; López, Raúl G., Molecules, 2014

The semicontinuous heterophase polymerization of styrene in the presence of cross-linking and porogen agents was carried out. Latexes with close to 20% solid content, which contained mesoporous nanoparticles with 28 nm in average diameters, up to 0.5 cm3/g in porosity and 6–8 nm in pore diameters ...

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Effect of annealing on down‐conversion properties of monoclinic Gd2O3:Er3+ nanophosphors

22-Dec-2014 | Raunak Kumar Tamrakar, D. P. Bisen, Kanchan Upadhyay, Luminescence, 2014

ABSTRACT Erbium‐doped nano‐sized Gd2O3 phosphor was prepared by a solution combustion method in the presence of urea as a fuel. The phosphor was characterized by X‐ray diffractometry (XRD), Fourier transform infra‐red spectroscopy, energy dispersive X‐ray analysis (EDX) and transmission ...

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Cobalt surface modification during γ-Fe2O3 nanoparticle synthesis by chemical-induced transition

21-Dec-2014 | Author(s): Junming Li , Jian Li , Longlong Chen , Yueqiang Lin , Xiaodong Liu , Xiaomin Gong , Decai Li, Materials Chemistry and Physics, 2014

Publication date: 1 February 2015 Source:Materials Chemistry and Physics, Volume 151 Author(s): Junming Li , Jian Li , Longlong Chen , Yueqiang Lin , Xiaodong Liu , Xiaomin Gong , Decai Li In the chemical-induced transition of FeCl2 solution, the FeOOH/Mg(OH)2 precursor was ...

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Interaction of Ce1−xErxO2−y nanoparticles with Al2O3

21-Dec-2014 | Author(s): L. Krajczyk , P. Kraszkiewicz , L. Kepinski, Materials Chemistry and Physics, 2014

Publication date: 1 February 2015 Source:Materials Chemistry and Physics, Volume 151 Author(s): L. Krajczyk , P. Kraszkiewicz , L. Kepinski The interaction of nanocrystalline Ce0.5Er0.5O1.75 mixed oxide with an amorphous Al2O3 in oxidizing and reducing atmosphere up to 1100°C was ...

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