ChemPlusChem

Publisher: Wiley-VCH Verlag

Journal description

ChemPlusChem is a peer-reviewed journal tailored to multidisciplinary chemistry and materials researchers from across the world. Fully comprehensive in its scope, ChemPlusChem publishes original papers covering at least two different aspects (subfields) of chemistry or one of chemistry and one of another scientific discipline (one chemistry topic plus another one, hence the title ChemPlusChem).

Current impact factor: 3.24

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 3.242
2012 Impact Factor

Additional details

5-year impact 0.00
Cited half-life 0.00
Immediacy index 0.00
Eigenfactor 0.00
Article influence 0.00
Website
ISSN 2192-6506

Publisher details

Wiley-VCH Verlag

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  • Classification
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Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Water contamination with lindane, which is a persistent, toxic, and priority insecticide, is a major problem worldwide. This study presents the fabrication of mesoporous alumina nanoparticles (MA–NPs) with a large surface-area-to-volume ratio, active surface sites, and open channel pores to trap/adsorb insecticide molecules, such as lindane. Key factors, such as temperature, pH (i.e., 4.5), adsorbate–adsorbent concentration, and contact time, influence the thermodynamics and kinetics of heterogeneous lindane–MA–NP adsorption. Results show that the maximum adsorption capacity (qm) of lindane is 25.54 mg g−1 at 20 °C. MA–NPs also exhibits a high uptake efficiency (>80 %) of lindane after 20 cycles, which results in effective regeneration and reusability characteristics. MA–NPs were also applied in real environmental samples from tap and lake water sources contaminated with lindane. The results indicate that the MA–NPs show evidence of their environmental impact, their potential influence on the removal and recovery of lindane, and their possible contribution to waste management.
    ChemPlusChem 06/2015; DOI:10.1002/cplu.201500098
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    ABSTRACT: Adsorbent sponges for water remediation were prepared using TEMPO-oxidized cellulose nanofibers (TOCNFs) as three-dimensional scaffolds, and branched polyethyleneimine (bPEI, 25 KDa) as the cross-linking agent. TOCNFs were suspended in aqueous solution in the presence of variable amounts of bPEI. The mixtures were first freeze-dried and then thermally treated (from 60 to 102 °C over 10 h) promoting the formation of amide bonds between the carboxylic groups of TOCNF and the primary amines of bPEI. The resulting materials, which were characterized by FTIR and 13C CP-MAS NMR spectroscopy, scanning electron microscopy, and elemental analysis, showed higher chemical and mechanical stability in water than non-reticulated cellulose composites. The high adsorption capability of the new sponges was verified for different organic pollutants (p-nitrophenol, 2,4,5-trichlorophenol, and amoxicillin), and heavy metal ion pollutants (Cu, Co, Ni, Cd), indicating their potential for water decontamination.
    ChemPlusChem 06/2015; DOI:10.1002/cplu.201500145
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    ABSTRACT: Pyridinemethanol-carboxylate esters form octahedral complexes with Zn(NO3)2 in aqueous DMF that subsequently undergo hydrolysis at elevated temperatures to form metal-carboxylate zwitterions. In situ deprotonation of the hydroxy group leads to thermally robust, neutral MOFs. This stepwise synthesis can be controlled by temperature and is made possible by the subtle difference in reactivity of the functional groups.
    ChemPlusChem 06/2015; DOI:10.1002/cplu.201500134
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    ABSTRACT: Boron-doped monoclinic and tetragonal phases of BiVO4 were prepared by using the urea precipitation method, and the visible-light photocatalytic activities of pristine and boron-doped BiVO4 for oxygen generation from water were compared. Boron doping enhances the photocatalytic activities of BiVO4. The reasons for this enhancement were probed by performing X-ray photoelectron, Raman, and electrochemical impedance spectroscopy measurements, and also by performing density functional calculations for model boron-doped BiVO4 structures. The photocatalytic activities of BiVO4 is enhanced by boron doping because the resulting BO4 tetrahedra, which are smaller than the VO4 tetrahedra, create an occupied defect level per boron lying approximately 0.17 eV above the valence-band maximum of pristine BiVO4, and this defect level is localized because it is made up of the O 2 p levels of the BO4 tetrahedron. Thus, the BO4 tetrahedra that result from boron doping act as hole traps, thereby slowing down the recombination of photogenerated electrons and holes.
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500110
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    ABSTRACT: Ultrafine nanotubes of Cu2NiSnS4 having an average diameter of 4 nm were prepared by a convenient one-step nanoconfined solvothermal approach. The confined reaction took place within the pores of anodic aluminum oxide (AAO). The structure, morphology, composition, optical absorption, and magnetic properties of the as-prepared samples were characterized using X-ray powder diffraction, transmission electron microscopy, energy-dispersive X-ray spectroscopy, scanning electron microscopy, UV/Vis spectroscopy, and superconducting quantum interference device measurements. A Rolling-up mechanism was proposed to explain the formation of Cu2NiSnS4 nanotubes. Thin films prepared from the nanotubes showed a photoelectric response, thus indicating a potential application for photovoltaic devices.
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500148
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    ABSTRACT: The reduction of graphite oxide is one of the most important reactions in the production of graphene in gram quantities. The mechanisms of these widely used reactions are poorly understood. The mechanism of the chemical reduction of two different graphite oxides prepared by the chlorate (Hofmann method) and permanganate methods (Hummers method) has been investigated. Three different reduction agents, lithium tetrahydridoaluminate, sodium tetrahydridoborate, and lithium tetrahydridoborate, as well as their deuterated counterparts, were used for the reduction of graphite oxide. Reduced graphite oxides were analyzed by scanning electron microscopy, energy-dispersive spectroscopy, elemental combustion analysis, Raman spectroscopy, high-resolution X-ray photoelectron spectroscopy, and simultaneous thermal analysis. The concentration of boron incorporated into graphene was measured by prompt gamma activation analysis. Rutherford back-scattering spectroscopy and elastic recoil detection analysis were used for the determination of the elemental composition, including deuterium concentration, as evidence of CH bond formation.
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500168
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    ABSTRACT: Little is known about how a non-Watson–Crick pair affects the RNA folding dynamics. We studied the effects of a U⋅U-to-U⋅C pair mutation on the folding of a hairpin in human telomerase RNA. The ensemble thermal melting of the hairpins shows an on-pathway intermediate with the disruption of the internal loop structure containing the U⋅U/U⋅C pairs. By using optical tweezers, we applied a stretching force on the terminal ends of the hairpins to probe directly the non-nearest-neighbour effects upon the mutations. The single U⋅U to U⋅C mutations are observed to 1) lower the mechanical unfolding force by approximately 1 picoNewton (pN) per mutation without affecting the unfolding reaction transition-state position (thus suggesting that removing a single hydrogen bond affects the structural dynamics at least two base pairs away), 2) result in more frequent misfolding into a small hairpin at approximately 10 pN and 3) shift the folding reaction transition-state position towards the native hairpin structure and slightly increase the mechanical folding kinetics (thus suggesting that untrapping from the misfolded state is not the rate-limiting step).
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500144
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    ABSTRACT: We present a versatile approach for the fabrication of well-defined networks of interconnected metal nanotubes, which applies electroless plating to ion-track-etched polymer templates that enclose designed pore networks. In order to obtain self-supporting structures, the deposition reactions must be optimized to yield conformal nanoscale metal films on microstructured substrates possessing extensive inner surfaces. Using this route, gold, copper, silver, nickel, and platinum nanotube networks are synthesized. The resulting structures can be handled macroscopically and combine a large surface area with continuous mass transport and conduction pathways, rendering them promising for application in, for example, electrocatalysis and sensing. This potential is demonstrated by employing a gold nanotube network for the amperometric detection of hydrogen peroxide, in which excellent sensitivity, catalyst utilization, and stability is achieved.
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500073
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    ABSTRACT: Reported is a catalyst-free synthetic route for the preparation of porous graphene networks (PGNs) incorporating benzimidazole linkages through the condensation reaction between ester-functionalized graphene sheets and organic aromatic amine linkers. PGNs showed remarkable thermal stability at temperatures of up to 350 °C in air. This emphasizes the importance of the formation of robust CC bonds by means of the Johnson–Claisen rearrangement for the covalent functionalization of graphene layers. PGNs exhibited high surface areas up to 732 m2 g−1 and showed the highest CO2 uptake capacity (3.75 mmol g−1 at 273 K, 1 bar) along with a remarkable CO2/N2 selectivity (130 at 273 K, 1 bar) of all the GO and graphene frameworks reported to date. PGNs as low-cost, efficient solid sorbents also exhibited high affinity towards H2 (1.2 wt % at 77 K, 1 bar).
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500061
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    ABSTRACT: This study reports the chemical synthesis of a class of dextran superparamagnetic nanoparticles that bear hydrophilic porphyrin units covalently grafted by a click chemistry reaction in aqueous solution. Magnetic nanoparticles are used in magnetic resonance imaging (MRI) and hyperthermia, and the grafting of hydrophilic photosensitizers (PS) leads to elaborate new multifunctional platforms for potential diagnostic and targeted photodynamic therapy (PDT). The therapeutic potential for PDT of these nanoparticles is evaluated in vitro against the HaCaT cell line. The results show that these new multicharged nanomagnets—in particular, those that bear cationic porphyrins—show a significant uptake and an interesting photocytotoxic activity toward HaCaT cells. The whole series of these synthesized PS are massively incorporated inside HaCat cells and associated with mitochondria.
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500087
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    ABSTRACT: A sustainable nanofabrication approach using glycosaminoglycans (GAGs), the major organic extracellular matrix components, was employed to assist tunable self-assembly of nanostructured poly(3,4-ethylenedioxythiophene) (PEDOT) by template-free electrochemical polymerization. An insight into GAG-assisted self-assembly of nanostructured PEDOT was proposed, which asserted that the EDOT monomers were self-assembled by active groups of polysaccharide chains of GAGs, and subsequently PEDOT/GAGs chains self-assembled to form nanostructured PEDOT. Its sustainable nature was supported through enhanced osteogenic bioactivity.
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500147
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    ABSTRACT: A novel approach for preparing volatile heterometallic complexes for use as precursors for the chemical vapor deposition of various materials is reported. New CuPd complexes based on β-diketonate units were prepared, and their structures and compositions were determined. [PdL2*CuL2] (1) and [PdL2*Cu(tmhd)2] (2) (L=2-methoxy-2,6,6-trimethylheptane-3,5-dionate; tmhd=2,2,6,6- tetramethylheptane-3,5-dionate) are 1D coordination polymers with alternating metal complexes, which are connected through weak interactions between the Cu atoms and the OCH3 groups from the ligand of the Pd complexes. The volatility and thermal stability were studied using thermogravimetric and differential thermal analyses and mass spectrometry. Compound 1 vaporizes without decomposition into monometallic complexes. It exhibits magnetic anisotropy, which was revealed from the angular variations in the EPR spectrum of a single crystal. The vapor thermolysis process for 1 was investigated using mass spectrometry, allowing the process to be framed within the temperature range of 200–350 °C. The experimental data, supported by QTAIM calculations of the allowed intermolecular interactions, suggest that 1 likely exists in the gas phase as bimetallic molecules. Compound 1 proved to be suitable as a single-source precursor for the efficient preparation of CuPd alloy films with tunable Cu/Pd ratio. A possible mechanism for the film growth is proposed based on the reported data.
    ChemPlusChem 05/2015; DOI:10.1002/cplu.201500050
  • ChemPlusChem 05/2015; 80(5). DOI:10.1002/cplu.201580561
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    ABSTRACT: Solid-state electrolytes such as lithium ion conducting ceramic or solid polymers have been studied as substitutes for liquid electrolytes, but critical problems exist at the interfacial resistance between the solid electrode and the solid electrolyte. In this study, we combined 80 wt % Li1.3Ti1.7Al0.3(PO4)3 (LTAP) as a lithium ion conducting ceramic with 10 wt % of poly(vinylidene fluoride) (PVdF) as a binder, and 10 wt % 1 M LiPF6 in ethyl carbonate/dimethyl carbonate (EC/DMC) to develop a new composite electrolyte. The ceramic-based composite electrolyte showed thermal stability and high ionic conductivity through reduction of the interface resistance. The lithium ion conductivity of the composite electrolyte was 8.9×10−4 S cm−1 at room temperature without leakage. Electrochemical tests of the Li1+xMn2O4–LTAP-based composite electrolyte–Li1−xMn2O4 cell showed that the composite could be utilized as a potential electrolyte for high-safety lithium-ion batteries.
    ChemPlusChem 04/2015; DOI:10.1002/cplu.201500106
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    ABSTRACT: Phenol is an omnipresent compound in various situations. Its acute toxicity makes alternative tracing methods desirable. Highly potent affinity materials based on polyvinyl pyridine allow an efficient tracing of this particular airborne compound. Their performance over, for example, benzene is tremendously superior. In combination with a simple cyclodextrin derivative an array allows differentiation among such aromatic competitors. Owing to the high affinity of these polymers for phenol, quartz microbalance-based tracing is able to detect phenol below the parts per million range. This was previously not possible with other affinity materials.
    ChemPlusChem 04/2015; DOI:10.1002/cplu.201500108
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    ABSTRACT: Efforts to improve the overall efficiency of photoelectrochemical water splitting by promoting interfacial charge transfer and suppressing electron–hole recombination remain a challenge. Highly porous Co3O4@carbon derived from metal–organic frameworks was successfully embedded on the surface of BiVO4 nanosheets. The Co3O4@carbon/BiVO4 composites were fully characterised by a variety of techniques, including powder XRD, diffuse reflectance UV/Vis spectroscopy, BET surface area calculations, SEM, TEM, energy-dispersive X-ray spectroscopy, high-angle annular dark-field scanning TEM, and X-ray photoelectron spectroscopy. The construction of a heterojunction between porous Co3O4 (p-Co3O4) and BiVO4 significantly promoted charge transfer and suppressed the recombination of holes and electrons. Consequently, the p-Co3O4@carbon/BiVO4 photoanode demonstrated approximately tenfold higher photocurrent density relative to bare BiVO4 and bulk Co3O4/BiVO4 for water oxidation under the same conditions. Also, this system displayed good durability for water oxidation and could be recycled at least three times without any loss of catalytic activity.
    ChemPlusChem 04/2015; DOI:10.1002/cplu.201500058