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Spectroscopic Study of Ionic Liquid Adsorption from Solution onto Gold

06-Jan-2015 | David Beattie; Sarah Harmer-Bassell; Tracey Ho; Marta Krasowska; John Ralston; Pasindu Sellapperumage; Patryk Wasik, Physical Chemistry Chemical Physics, 2015

Gold was exposed to ethanol solutions containing 0.1 wt. % 1-hexyl-3-methyl-imidazolium bis(trifluoromethanesulfonyl)imide (HMIM NTf2), an ionic liquid (IL). The resulting adsorbed layers were interrogated using X-ray photoelectron spectroscopy (XPS – both conventional and synchrotron-based) and ...

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Stable quasi-solid-state dye-sensitized solar cell using ionic gel electrolyte with low molecular mass organogelator

04-Jan-2015 | Author(s): Li Tao , Zhipeng Huo , Songyuan Dai , Jun Zhu , Changneng Zhang , Xu Pan , Yang Huang , Shangfeng ..., Materials Chemistry and Physics, 2015

Publication date: 15 February 2015 Source:Materials Chemistry and Physics, Volume 152 Author(s): Li Tao , Zhipeng Huo , Songyuan Dai , Jun Zhu , Changneng Zhang , Xu Pan , Yang Huang , Shangfeng Yang , Bing Zhang , Jianxi Yao Long-term stability is essential for the application ...

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Metal-Promoted Intermolecular Electron Transfer in Tetrathiafulvalene–Thiacalix[4]arene Conjugates and Tetrachlorobenzoquinone

31-Dec-2014 | Bang-Tun Zhao; Qi-Ming Peng; Xiao-Min Zhu; Zhen-Ning Yan; Wei-Min Zhu, The Journal of Organic Chemistry, 2014

In this work, two series of tetrathiafulvalene (TTF) and thiacalix[4]arene (TCA) conjugates (TTF–TCA) were designed by CuAAC click reactions. The results obtained from NMR and 1H NMR NOE indicated that their conformations of thiacalix[4]arene framework may prefer to 1,3-alternate. The cyclic ...

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Unraveling the Intrinsic Color of Chlorophyll

30-Dec-2014 | Bruce F. Milne, Yoni Toker, Angel Rubio, Steen Brøndsted Nielsen, Angewandte Chemie International Edition, 2014

Abstract The exact color of light absorbed by chlorophyll (Chl) pigments, the light‐harvesters in photosynthesis, is tuned by the protein microenvironment, but without knowledge of the intrinsic color of Chl it remains unclear how large this effect is. Experimental first absorption energies of ...

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Online mercury determination by laser-induced breakdown spectroscopy with the assistance of solution cathode glow discharge

30-Dec-2014 | Peichao Zheng; Hongdi Liu; Jinmei Wang; Minjie Shi; Xiaomeng Wang; Bin Zhang; Rui Yang, Journal of Analytical Atomic Spectrometry, 2014

The trace mercury in an aqueous solution was determined by laser-induced breakdown spectroscopy (LIBS) with the assistance of a solution cathode glow discharge (SCGD) system. The aqueous solution was converted to the gas phase using a high voltage DC discharge, and then the generated mercury ...

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Dense, Highly Hydrated Polymer Brushes via Modified Atom-Transfer-Radical-Polymerization: Structure, Surface Interactions, and Frictional Dissipation

30-Dec-2014 | Odeya Tairy; Nir Kampf; Michael J. Driver; Steven P. Armes; Jacob Klein, Macromolecules, 2014

The conditions for atom transfer radical polymerization (ATRP) of poly[2-(methacryloyloxy)ethyl phosphorylcholine] (pMPC) chains are modified to enable much more efficient growth of these poly zwitterionic chains from macroinitiator-coated mica substrates using the “grafting from” technique. In ...

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Power of a Remote Hydrogen Bond Donor: Anion Recognition and Structural Consequences Revealed by IR Spectroscopy

29-Dec-2014 | Masoud Samet; Mohammad Danesh-Yazdi; Alireza Fattahi; Steven R. Kass, The Journal of Organic Chemistry, 2014

Natural and synthetic anion receptors are extensively employed, but the structures of their bound complexes are difficult to determine in the liquid phase. Infrared spectroscopy is used in this work to characterize the solution structures of bound anion receptors for the first time, and ...

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New complex bismuth oxides in the Bi2O3–NiO–Sb2O5 system and their properties

28-Dec-2014 | Author(s): A.V. Egorysheva , O.G. Ellert , Y.V. Zubavichus , O.M. Gajtko , N.N. Efimov , R.D. Svetogorov , V.Y ..., Journal of Solid State Chemistry, 2014

Publication date: May 2015 Source:Journal of Solid State Chemistry, Volume 225 Author(s): A.V. Egorysheva , O.G. Ellert , Y.V. Zubavichus , O.M. Gajtko , N.N. Efimov , R.D. Svetogorov , V.Yu. Murzin Phase equilibria in the Bi2O3–NiO–Sb2O5 system have been investigated. The isothermal ...

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Surface, optical and photocatalytic properties of silica-supported TiO2 treated with electron beam

28-Dec-2014 | Author(s): Pawel Wronski , Jakub Surmacki , Halina Abramczyk , Agnieszka Adamus , Magdalena Nowosielska , Walde ..., Radiation Physics and Chemistry, 2014

Publication date: April 2015 Source:Radiation Physics and Chemistry, Volume 109 Author(s): Pawel Wronski , Jakub Surmacki , Halina Abramczyk , Agnieszka Adamus , Magdalena Nowosielska , Waldemar Maniukiewicz , Marcin Kozanecki , Magdalena Szadkowska-Nicze The influence of ...

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Analysis of Complex Reacting Mixtures by Time-Resolved 2D NMR

26-Dec-2014 | Rupashree Dass; Wiktor Koźmiński; Krzysztof Kazimierczuk, Analytical Chemistry, 2014

Nuclear magnetic resonance (NMR) spectroscopy is a versatile tool for chemical analysis. Besides the most straightforward application to study a stable sample containing a single compound, NMR has been also used for the analysis of mixtures. In particular, the analyzed mixtures can undergo ...

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