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A “zig-zag” naphthodithiophene core for increased efficiency in solution-processed small molecule solar cells

Stephen Loser、Hiroyuki Miyauchi、Jonathan W. Hennek 等 7 位作者2012-01-01Chemical Communications

A solution-processed small molecule utilizing a novel 5,10-bis((2-ethylhexyl)oxy)-naphtho[2,3-b:6,7-b0]dithiophene [corrected] "zig-zag" core (zNDT) exhibits high hole mobility, upshifted frontier MO energies, and enhanced photovoltaic cell short-circuit currents, fill-factors, and power conversion efficiencies (4.7%)…

Organic Electronics and PhotovoltaicsPerovskite Materials and ApplicationsConducting polymers and applications

A high-performance anion exchange membrane based on bi-guanidinium bridged polysilsesquioxane for alkaline fuel cell application

Chao Qu、Huamin Zhang、Fengxiang Zhang 等 4 位作者2012-01-01Journal of Materials Chemistry

A bi-guanidinium bridged polysilsesquioxane composite membrane was fabricated for the first time, which showed impressive hydroxide conductivity and decent alkali-stability. Its direct borohydride fuel cell yielded a peak power density of 321 mW cm−2 at ca. 700 mA cm−2 and 40 °C, which is to our knowledge the highest…

Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials

All printed transparent electrodes through an electrical switching mechanism: A convincing alternative to indium-tin-oxide, silver and vacuum

Thue T. Larsen‐Olsen、Roar R. Søndergaard、Kion Norrman 等 5 位作者2012-01-01Energy & Environmental Science

Here we show polymer solar cells manufactured using only printing and coating of abundant materials directly on flexible plastic substrates or barrier foil using only roll-to-roll methods. Central to the development is a particular roll-to-roll compatible post-processing step that converts the pristine and non-functio…

Organic Electronics and PhotovoltaicsThin-Film Transistor TechnologiesConducting polymers and applications

On the ideality of binary mixtures of ionic liquids

Marc Brüssel、Martin Brehm、Alfonso S. Pensado 等 7 位作者2012-01-01Physical Chemistry Chemical Physics

In this work, structural and dynamical properties of the binary mixture of 1-ethyl-3-methyl-imidazolium chloride and 1-ethyl-3-methyl-imidazolium thiocyanate are investigated from ab initio molecular dynamics simulations and compared to the pure ionic liquids. Furthermore, the binary mixture is simulated with two diff…

Ionic liquids properties and applicationsElectrochemical Analysis and ApplicationsSolid-state spectroscopy and crystallography

The preparation of functionalized graphene oxide for targeted intracellular delivery of siRNA

Xiaoying Yang、Gaoli Niu、Xiufen Cao 等 7 位作者2012-01-01Journal of Materials Chemistry

Functionalized graphene oxide (GO) for the targeted intracellular delivery of hTERT siRNA was prepared by conjugating GO with polyethylene glycol (PEG) and folic acid, followed by the loading of siRNA with the aid of 1-pyrenemethylamine hydrochloride via π–π stacking. It was found that it could target the HeLa in vitr…

Graphene research and applicationsAdvanced biosensing and bioanalysis techniquesGraphene and Nanomaterials Applications

SnS2@reduced graphene oxide nanocomposites as anode materials with high capacity for rechargeable lithium ion batteries

Jiefu Yin、Huaqiang Cao、Zhongfu Zhou 等 5 位作者2012-01-01Journal of Materials Chemistry

Nanostructured electrode materials have been studied extensively with the aim of enhancing lithium ion and electron transport, lowering the stress caused by their volume changes during the charge/discharge processes of electrodes, and decreasing overpotential of the electrode reactions in lithium ion batteries. In thi…

Advancements in Battery MaterialsGraphene research and applicationsAdvanced Battery Materials and Technologies

Charge transfer state in highly efficient polymer–fullerene bulk heterojunction solar cells

Claudia Piliego、Maria Antonietta Loi2012-01-01Journal of Materials Chemistry

In recent years, steady improvements in organic photovoltaic (OPV) performance have been reported with power conversion efficiency (PCE) reaching 9%. Despite this rapid improvement, the mechanisms limiting the existing performance are not completely known; therefore a better understanding of the loss processes is nece…

Organic Electronics and PhotovoltaicsPerovskite Materials and ApplicationsConducting polymers and applications

Surfactant-free single-nano-sized colloidal Cu nanoparticles for use as an active catalyst in Ullmann-coupling reaction

Yuto Isomura、Takashi Narushima、Hideya Kawasaki 等 5 位作者2012-01-01Chemical Communications

Surfactant-free, single-nano-sized copper nanoparticles (Cu NPs) (size: about 2 nm) were prepared by the DMF reduction method. The Cu NPs showed high catalytic activity (with a turnover number (TON) of up to 2.2 × 10(4)) in Ullmann-type cross-coupling of aryl halides with phenols under ligand-free conditions.

Catalytic Cross-Coupling ReactionsNanocluster Synthesis and ApplicationsNanomaterials for catalytic reactions

Highly efficient visible-light-driven plasmonic photocatalysts based on graphene oxide-hybridized one-dimensional Ag/AgCl heteroarchitectures

Mingshan Zhu、Penglei Chen、Minghua Liu2012-01-01Journal of Materials Chemistry

In this paper, we report that one-dimensional (1D) Ag/AgCl nanostructures could be facilely fabricated by means of an oxidation-chloridization process, wherein prefabricated 1D Ag nanowires are employed as a template. Graphene oxide (GO)-hybridized 1D Ag/AgCl nanocomposites, Ag/AgCl/GO, could also be easily formulated…

Advanced Photocatalysis TechniquesQuantum Dots Synthesis And PropertiesCopper-based nanomaterials and applications

Significant promoting effects of Lewis acidity on Au–Pd systems in the selective oxidation of aromatic hydrocarbons

Hongli Liu、Yingwei Li、Huanfeng Jiang 等 5 位作者2012-01-01Chemical Communications

An unprecedented synergistic effect, obtained for rationally designed Au-Pd alloy nanoparticles supported on an acidic metal-organic framework (MOF), in the aerobic oxidation of the primary C-H bonds in toluene and derivates is reported.

Metal-Organic Frameworks: Synthesis and ApplicationsCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions

The contrasting chemical reactivity of potent isoelectronic iminopyridine and azopyridine osmium(ii) arene anticancer complexes

Ying Fu、María J. Romero、Abraha Habtemariam 等 10 位作者2012-01-01Chemical Science

A wide variety of steric and electronic features can be incorporated into transition metal coordination complexes, offering the prospect of rationally-designed therapeutic agents with novel mechanisms of action. Here we compare the chemical reactivity and anticancer activity of organometallic OsII complexes [Os(η6-are…

Metal complexes synthesis and propertiesMagnetism in coordination complexesFerrocene Chemistry and Applications

Beet juice utilization: Expeditious green synthesis of noble metal nanoparticles (Ag, Au, Pt, and Pd) using microwaves

Jiahui Kou、Rajender S. Varma2012-01-01RSC Advances

Metal nanoparticles of Ag, Au, Pt, and Pd were prepared in aqueous solutions via a rapid microwave-assisted green method using beet juice, an abundant sugar-rich agricultural product, which served as both a reducing and a capping reagent. The Ag nanoparticles with capping prepared using beet juice exhibit higher catal…

Nanoparticles: synthesis and applicationsGold and Silver Nanoparticles Synthesis and ApplicationsNanomaterials for catalytic reactions

An 8.2% efficient solution-processed CuInSe2 solar cell based on multiphase CuInSe2 nanoparticles

Sunho Jeong、Byung Seok Lee、SeJin Ahn 等 7 位作者2012-01-01Energy & Environmental Science

Multiphase CuInSe2 (CISe) nanoparticles including the CuSe phase are synthesized by the microwave-assisted solvothermal method. Without additional processing, multiphase CISe nanoparticles facilitate the solution-processed CISe absorber layer with a dense microstructure, large grains, high crystallinity, and compositi…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications

A one-step homogeneous plasmonic circular dichroism detection of aqueous mercury ions using nucleic acid functionalized gold nanorods

Yingyue Zhu、Liguang Xu、Wei Ma 等 7 位作者2012-01-01Chemical Communications

In this work, we report the application of gold nanorods ladder assemblies as chiroptical sensors for detecting mercury ions (Hg(2+)). By taking advantage of the Hg(2+)-mediated T-T base pair of DNA and the high sensitivity of CD measurements, the method offers a simple and sensitive detection of target Hg(2+) residue…

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesMolecular Sensors and Ion Detection

A sensitive colorimetric and ratiometric fluorescent probe for mercury species in aqueous solution and living cells

Jie Jiang、Wei Liu、Wei Liu 等 9 位作者2012-01-01Chemical Communications

A highly sensitive and selective fluorescent probe for inorganic and organic mercury species displays colorimetric and ratiometric response in a buffer solution via mercury promoted cleavage reaction. The probe is demonstrated to detect CH(3)HgCl in living cells.

Molecular Sensors and Ion DetectionMercury impact and mitigation studiesLuminescence and Fluorescent Materials

Yolk@shell anatase TiO2 hierarchical microspheres with exposed {001} facets for high-performance dye sensitized solar cells

Wen Fang、Xiao Yang、Hongjun Zhu 等 7 位作者2012-01-01Journal of Materials Chemistry

We report a facile, template-free and nontoxic one-pot solvothermal route for synthesizing submicrometer-sized yolk@shell hierarchical spheres, which possess a permeable shell self-assembled by ultrathin anatase TiO2 nanosheets (NSs) with nearly 90% of exposed {001} facets and mesoporous inner sphere with a high speci…

TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesQuantum Dots Synthesis And Properties

A facile preparation of palladium nanoparticles supported on magnetite/s-graphene and their catalytic application in Suzuki–Miyaura reaction

Jiefeng Hu、Yuping Wang、Min Han 等 6 位作者2012-01-01Catalysis Science & Technology

Fe3O4 and Pd nanoparticles were assembled on sulfonated graphene (s-G) by an easy chemical approach and characterized by transmission electron microscopy, X-ray diffraction and energy dispersive X-ray spectroscopy. The resulting material could be dispersed homogeneously in water or water/ethanol and further used as an…

Catalytic Cross-Coupling ReactionsPolyoxometalates: Synthesis and ApplicationsNanomaterials for catalytic reactions

Polymers for Energy Storage and Delivery: Polyelectrolytes for Batteries and Fuel Cells

Kirt A. Page、Christopher L. Soles、James Runt2012-01-01ACS symposium series

Lithium ion batteries are widely used in portable electronics. The electrolyte in commercial Li ion batteries is an organic liquid with dissolved Li salt. Polymer electrolytes offer several advantages and have been investigated for over 30 years. This chapter introduces the polymer electrolyte, outines the factors whi…

Advanced Battery Materials and TechnologiesFuel Cells and Related MaterialsConducting polymers and applications

Microwave-assisted synthesis of BiOBr/graphene nanocomposites and their enhanced photocatalytic activity

Shuyan Song、Wei Gao、Xiao Wang 等 7 位作者2012-01-01Dalton Transactions

BiOBr/graphene nanocomposites were synthesized by a green single-step microwave strategy and characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. The photocatalytic activity of the as-prepared BiOBr…

Advanced Photocatalysis TechniquesCovalent Organic Framework ApplicationsNanomaterials for catalytic reactions

On-surface coordination chemistry of planar molecular spin systems: novel magnetochemical effects induced by axial ligands

Christian Wäckerlin、Kartick Tarafder、Dorota Siewert 等 11 位作者2012-01-01Chemical Science

Paramagnetic transition-metal complexes assembled on surfaces are of great interest for potential applications in organic spintronics. The magnetochemical interactions of the spin of the metal centers with both ferromagnetic surfaces and optional axial ligands are yet to be understood. We use a combination of X-ray ma…

Porphyrin and Phthalocyanine ChemistryMolecular Junctions and NanostructuresSurface Chemistry and Catalysis