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Catalyst-Free Aldol Reaction in a Water Medium

04-May-2016 | Yao, Weirong; Cui, Yanli; Wang, Peipei; Mao, Yangyi, Letters in Organic Chemistry, 2016

Abstract: Background: With growing interest in developing environmentally friendly reactions and atom-economic processes in recent years, the utilization of water as a solvent has attracted a great deal of attention. This is not only for its low-cost, safe and environmentally benign nature, ...

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Iron oxide nanotube film formed on carbon steel for photoelectrochemical water splitting: effect of annealing temperature

29-Apr-2016 | Hongda Deng, Mao‐Chia Huang, Wei‐Heng Weng, Jing‐Chie Lin, Surface and Interface Analysis, 2016

Carbon steels (CSs) were anodized in an ethylene glycol solution containing 3 vol.% H2O and 0.1 m NH4F to coat with nanotube arrays film. The as anodized nanotube arrays film were annealed in argon atmosphere at various temperatures ranging from 250 to 550 °C for 4 h. The morphology and crystal ...

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New Perspectives on the Charging Mechanisms of Supercapacitors

29-Apr-2016 | Alexander C. Forse; Céline Merlet; John M. Griffin; Clare P. Grey, Journal of the American Chemical Society, 2016

Supercapacitors (or electric double-layer capacitors) are high-power energy storage devices that store charge at the interface between porous carbon electrodes and an electrolyte solution. These devices are already employed in heavy electric vehicles and electronic devices, and can complement ...

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Separation and Detection of Amino Acid Metabolites of Escherichia Coli in Microbial Fuel Cell with Capillary Electrophoresis

28-Apr-2016 | Wei Wang, Lihong Ma, Ping Lin, Kaixuan Xu, ELECTROPHORESIS, 2016

In this work, CE‐LIF was employed to investigate the amino acid metabolites produced by Escherichia coli (E coli) in microbial fuel cell (MFC). Two peptides, L‐carnosine and L‐alanyl‐glycine, together with six amino acids, cystine, alanine, lysine, methionine, tyrosine, arginine were separated ...

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Unexpected Li2O2 Film Growth on Carbon Nanotube Electrodes with CeO2 Nanoparticles in Li–O2 Batteries

27-Apr-2016 | Chunzhen Yang; Raymond A. Wong; Misun Hong; Keisuke Yamanaka; Toshiaki Ohta; Hye Ryung Byon, Nano Letters, 2016

In lithium–oxygen (Li–O2) batteries, it is believed that lithium peroxide (Li2O2) electrochemically forms thin films with thicknesses less than 10 nm resulting in capacity restrictions due to limitations in charge transport. Here we show unexpected Li2O2 film growth with thicknesses of ∼60 nm on ...

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Thermodynamic Stability of Low‐k Amorphous SiOCH Dielectric Films

25-Apr-2016 | Jiewei Chen, Sean W. King, Elayaraja Muthuswamy, Anastasia Koryttseva, Di Wu, Alexandra Navrotsky, Journal of the American Ceramic Society, 2016

Si–O–C‐based amorphous or nanostructured materials are now relatively common and of interest for numerous electronic, optical, thermal, mechanical, nuclear, and biomedical applications. Using plasma‐enhanced chemical vapor deposition (PECVD), hydrogen atoms are incorporated into the system to ...

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Cefixime detection by a novel electrochemical sensor based on glassy carbon electrode modified with surface imprinted polymer/multiwall carbon nanotubes

25-Apr-2016 | Author(s): N. Karimian, M.B. Gholivand, Gh. Malekzadeh, Journal of Electroanalytical Chemistry, 2016

Publication date: 15 June 2016 Source:Journal of Electroanalytical Chemistry, Volume 771 Author(s): N. Karimian, M.B. Gholivand, Gh. Malekzadeh A new selective voltammetric sensor based on molecularly imprinted polymer immobilized on multiwall carbon nanotube surface was reported for ...

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Elimination of radiocontrast agent Diatrizoic acid from water by electrochemical advanced oxidation: Kinetics study, mechanism and mineralization pathway

25-Apr-2016 | Author(s): Elvira Bocos, Nihal Oturan, M. Ángeles Sanromán, Mehmet A. Oturan, Journal of Electroanalytical Chemistry, 2016

Publication date: 1 July 2016 Source:Journal of Electroanalytical Chemistry, Volume 772 Author(s): Elvira Bocos, Nihal Oturan, M. Ángeles Sanromán, Mehmet A. Oturan Diatrizoic acid (DIA) is an iodinated X-ray contrast media commonly used in hospitals. It is persistent and ...

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∙OH and e-aq are yet good candidates for demolishing the β-lactam system of a penicillin eliminating the antimicrobial activity

24-Apr-2016 | Author(s): László Szabó, Tünde Tóth, Gergely Rácz, Erzsébet Takács, László Wojnárovits, Radiation Physics and Chemistry, 2016

Publication date: July 2016 Source:Radiation Physics and Chemistry, Volume 124 Author(s): László Szabó, Tünde Tóth, Gergely Rácz, Erzsébet Takács, László Wojnárovits Tracking the pharmacophore of a drug subjected to advanced oxidation is essential for evaluating the efficiency of ...

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Synergistic effect of cellulose nanowhiskers reinforcement and dicarboxylic acids crosslinking towards polyvinyl alcohol properties

21-Apr-2016 | Amit Kumar Sonker, Naveen Tiwari, Rajaram Krishna Nagarale, Vivek Verma, Journal of Polymer Science Part A: Polymer Chemistry, 2016

ABSTRACT In the presented work, a significant increase in the tensile strength of the PVA composite material is reported. The obtained best value of 122 MPa and 14.6% swelling shows the excellent synergistic effect of both crosslinker and reinforcement material. The composite films were ...

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