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5.417 Aktuelle Fachpublikationen zum Thema temperature

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Destructuring ionic liquids in ionogels: enhanced fragility for solid devices

21.10.2014 | A. Guyomard-Lack; P.-E. Delannoy; N. Dupré; C. V. Cerclier; B. Humbert; J. Le Bideau, Physical Chemistry Chemical Physics, 2014

Confining ionic liquids (ILs) with added lithium salt within silica host networks enhances their fragility and improves their conductivity. Overall, conductivity measurements, Raman spectroscopy of the TFSI anion and NMR spectroscopy of the lithium cation show segregative interaction of lithium ...

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Organotemplate-free Hydrothermal Synthesis of Aluminophosphate Molecular Sieve with AEN-zeotype Topology and Properties of Its Derivatives

21.10.2014 | Yanyan Wang; Yanjun Sun; Ying Mu; Chuanqi Zhang; Jiyang Li; Jihong Yu, Chemical Communication, 2014

A facile organotemplate-free route has been developed to synthesize the aluminophosphate molecular sieve in alkali metal-containing system under hydrothermal conditions. The as-prepared JU93 possesses AEN zeotype topology with small 8-ring pores, and its derivatives show ion conductivity and ...

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Synthesis of Pyridine Chitosan and its Protonic Conductivity

18.10.2014 | Yingxin Deng, Brett A. Helms, Marco Rolandi, Journal of Polymer Science Part A: Polymer Chemistry, 2014

The synthesis of a positively charged and water soluble chitosan derivative from chitosan is presented.

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Electrical conductivity and tensile properties of block‐copolymer‐wrapped single‐walled carbon nanotube/poly(methyl methacrylate) composites

18.10.2014 | Alejandro Ansón‐Casaos, F. Javier Pascual, Cristina Ruano, Natalia Fernández‐Huerta, Isaías Fernández‐Pato, Juan C. ..., Journal of Applied Polymer Science, 2014

ABSTRACT Poly(methyl methacrylate) (PMMA) composites containing raw or purified single‐walled carbon nanotubes (SWCNTs) are prepared by in situ polymerization and solution processing. The SWCNTs are purified by centrifugation in a Pluronic surfactant, which consists of polyethyleneoxide and ...

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Conductive imidazolium side chain liquid crystal polyacrylates prepared from postpolymerization functionalization

18.10.2014 | Caihong Wang, Yong Wu, Shuai Tan, Ting Liang, Xiaohui Yang, Journal of Applied Polymer Science, 2014

ABSTRACT Hydroxide and tetrafluoroborate salts of imidazolium polyacrylates have been prepared from postpolymerization functionalization of a brominated precursor containing mesogenic side chains followed by anion exchange. The ionic polyacrylates possessed molecular weights in the range ...

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Can erbium dopant occupy both cation sites in cubic barium titanate via a mechanism different than self‐compensation?

18.10.2014 | Y. A. Zulueta, F. Guerrero, Y. Leyet, J. Anglada‐Rivera, R. L. González‐Romero, Juan J. Meléndez, physica status solidi (b), 2014

The defect energetics for several dopant incorporation modes and the dielectric–electric properties in Er‐doped BaTiO3 were studied by numerical simulations and the dielectric modulus formalism. Two “mixed” incorporation modes, both compatible with the existence of oxygen vacancies, are ...

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On the role of graphite in ultrananocrystalline diamond films used for electron field emitter applications (Phys. Status Solidi A 10∕2014)

18.10.2014 | Joji Kurian, Kamatchi Jothiramalingam Sankaran, I‐Nan Lin, physica status solidi (a), 2014

The Feature Article on pp. 2223–2237 gives an account of the different pieces of work conducted by various groups around the world, aimed at constituting a single model to explain the enhancement of conductivity and electron field emission properties in diamond. Kurian et al. reveal that, from ...

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Probing the Effect of Ionic Strength on the Functional Robustness of the Triheme Cytochrome PpcA from Geobacter sulfurreducens: A Contribution for Optimizing Biofuel Cell’s Power Density

17.10.2014 | Joana M. Dantas; Leonor Morgado; Ana C. Marques; Carlos A. Salgueiro, Journal of Physical Chemistry B, 2014

The increase of conductivity of electrolytes favors the current production in microbial fuel cells (MFCs). Adaptation of cell cultures to higher ionic strength is a promising strategy to increase electricity production. The bacterium Geobacter sulfurreducens is considered a leading candidate for ...

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Formation of a CdO Layer on CdS/ZnO Nanorod Arrays to Enhance their Photoelectrochemical Performance

16.10.2014 | Thanh Khue Van, Long Quoc Pham, Do Yoon Kim, Jin You Zheng, Dokyoung Kim, Amol U. Pawar, Young Soo Kang, ChemSusChem, 2014

Abstract The performance and photocatalytic activity of the well‐known CdS/ZnO nanorod array system were improved significantly by the layer‐by‐layer heterojunction structure fabrication of a transparent conductive oxide (TCO) CdO layer on the CdS/ZnO nanorods. Accordingly, a CdO layer with a ...

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Ionic Liquid Based Approaches to Carbon Materials Synthesis

14.10.2014 | Zai‐Lai Xie, Dang Sheng Su, European Journal of Inorganic Chemistry, 2014

Abstract Ionic liquids (ILs) have attracted continuous interest because of their remarkable physicochemical properties, including high thermal and chemical stability, nonflammability, negligible vapor pressure, designable cation/anion pairs, electrical and ionic conductivity, low melting ...

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