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274 Newest Publications in journal of materials chemistry

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Platinum–Cobalt alloy networks for methanol oxidation electrocatalysis

31-10-2012 | Jiangfeng Xu; Xinyu Liu; Yu Chen; Yiming Zhou; Tianhong Lu; Yawen Tang, Journal of Materials Chemistry, 2012

Three-dimensional (3D) platinum–cobalt alloy networks nanostructures with a high alloying degree were synthesized through a room temperature wet-chemical synthetic method using the K2PtCl4/K3Co(CN)6 cyanogel as reaction precursor in the absence of surfactants and templates. The size, morphology ...

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Temperature-triggered redox-degradable poly(ether urethane) nanoparticles for controlled drug delivery

31-10-2012 | Yangyun Wang; Guolin Wu; Xiaomeng Li; Jiatong Chen; Yinong Wang; Jianbiao Ma, Journal of Materials Chemistry, 2012

A series of biodegradable poly(ether urethane)s that responded to changes in temperature and redox potential was synthesized via a facile one-pot method. The amphiphilic poly(ether urethane)s were comprised of 2,2′-dithiodiethanol, hydrophobic hexamethylene diisocyanate and hydrophilic ...

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Nano-drilled multiwalled carbon nanotubes: characterizations and application for LIB anode materials

25-10-2012 | Haryo S. Oktaviano; Koichi Yamada; Keiko Waki, Journal of Materials Chemistry, 2012

Nano-drilling of multiwalled carbon nanotubes (MWCNTs) has been conducted by taking advantage of CoOx as the oxidation catalyst at a relatively low temperature of 250 °C. An increase of the ID/IG ratio of Raman spectroscopy, together with TEM visualization, justifies the presence of hole defects ...

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Stability limit of the layered-perovskite structure in Ln2Ti2O7 (Ln = lanthanide) thin films grown on (110)-oriented SrTiO3 substrates by the sol–gel route

24-10-2012 | Zhenmian Shao; Sébastien Saitzek; Pascal Roussel; Rachel Desfeux, Journal of Materials Chemistry, 2012

The stability limit between the layered-perovskite and pyrochlore structures was investigated for Ln2Ti2O7 (Ln = lanthanide) thin films grown on (110)-oriented SrTiO3 substrate by the sol–gel route. In bulk, for standard conditions of pressure and temperature, these oxides adopt the ...

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The low temperature atomic layer deposition of ruthenium and the effect of oxygen exposure

24-10-2012 | Rungthiwa Methaapanon; Scott M. Geyer; Han-Bo-Ram Lee; Stacey F. Bent, Journal of Materials Chemistry, 2012

We have studied the atomic layer deposition (ALD) of ruthenium using bis(2,4-dimethylpentadienyl) ruthenium and oxygen. We show that the process is achievable at a low operating temperature of 185 °C. Variation in the exposure time and pressure of the oxygen counterreactant has significant ...

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High electron mobility in a columnar phase of liquid-crystalline perylene tetracarboxylic bisimide bearing oligosiloxane chains

17-10-2012 | Masahiro Funahashi; Akinari Sonoda, Journal of Materials Chemistry, 2012

A liquid-crystalline (LC) semiconductor based on perylene tetracarboxylic bisimide (PTCBI) bearing four 1,1,1,3,3-pentamethyldisiloxane chains was synthesized. This LC PTCBI derivative exhibits ordered columnar phases and the low temperature columnar phase is retained below room temperature. The ...

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Sol–gel synthesis of ZnTiO3 using a single-source precursor based on p-carboxybenzaldehyde oxime as a linker

17-10-2012 | Jingxia Yang; Johanna Akbarzadeh; Christian Maurer; Herwig Peterlik; Ulrich Schubert, Journal of Materials Chemistry, 2012

ZnTiO3 was synthesized by sol–gel processing using a single-source precursor in which the two metal atoms are linked by means of p-carboxybenzaldehyde oxime. According to spectroscopic investigations, the COOH group is coordinated to Zn2+ and the oximate group to a Ti(OiPr)3 moiety. The ...

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One-pot Synthesis Method of Cu Nanoparticles for Low Temperature Bonding

16-10-2012 | Toshitaka Ishizaki; Ryota Watanabe, Journal of Materials Chemistry, 2012

We developed a new one-pot synthesis method of Cu nanoparticles capped with fatty acids and amines from an insoluble salt, such as Cu carbonate and Cu hydroxide, in ethylene glycol. This method was able to be completed in a short time and provides a high collection rate from inexpensive raw ...

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Hydrogen adsorption on Na–SWCNT systems

10-10-2012 | Balasaheb J. Nagare; Darshan Habale; Sajeev Chacko; Swapan Ghosh, Journal of Materials Chemistry, 2012

We investigate the hydrogen adsorption capacity of Na-coated carbon nanotubes (Na-SWCNTs) using first-principles electronic structure calculations at absolute temperature and pressure. A single Na atom is always found to occupy the hollow site of a hexagonal carbon ring in all the six different ...

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1D hollow [small alpha]-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries

10-10-2012 | Sudeshna Chaudhari; Madhavi Srinivasan, Journal of Materials Chemistry, 2012

Hollow-structured α-Fe2O3 nanofibers were successfully synthesized by a simple electrospinning technique using iron acetylacetonate (Fe(acac3)) and polyvinylpyrrolidone (PVP) precursor. Fe (acac)3–PVP composite fibers were calcined at high temperature to form an interconnected 1D hollow-structure ...

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