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Preparation and characterization of polysiloxane networks containing metallic platinum particles

20-Nov-2015 | Edyta Stochmal, Joanna Strzezik, Agnieszka Krowiak, Journal of Applied Polymer Science, 2015

ABSTRACT Polysiloxane networks obtained via cross‐linking of D4/V4 polysiloxane served as matrices for incorporation of metallic Pt particles. D4/V4 polymer used in the crosslinking was synthesized by equilibrium cationic ring‐opening polymerization of the corresponding cyclotetrasiloxane ...


Environment friendly synthesis of magnetite–graphene composite for adsorption of toxic chromium (VI) ions from drinking water

19-Nov-2015 | Dilip K.L. Harijan, Vimlesh Chandra, Environmental Progress, 2015

Magnetite graphene composite (MGC) was synthesized via environment friendly route via thermal reduction of graphene oxide to graphene in alkali solution at 90°C and in the absence of toxic hydrazine hydrate. X‐ray diffraction pattern of MGC shows formation of magnetite phase with crystallite ...


In Situ Study of Fe3Pt–Fe2O3 Core–Shell Nanoparticle Formation

19-Nov-2015 | Wen-I Liang; Xiaowei Zhang; Yunlong Zan; Ming Pan; Cory Czarnik; Karen Bustillo; Jun Xu; Ying-Hao Chu; Haimei Zheng, Journal of the American Chemical Society, 2015

We report an in situ study of Fe3Pt-Fe2O3 core–shell nanoparticle growth using liquid cell transmission electron microscopy. By controlling the Fe-to-Pt ratio in the precursor solution, we achieved the growth of nanoparticles with the formation of an iron–platinum alloy core followed by an iron ...


Synthesis and characterization of carbon‐doped ZnSn(OH)6 with enhanced photoactivity by hydrothermal method

18-Nov-2015 | Hongxia Lu, Jun Lei, Xuexue Li, Gang Shao, Tiecui Hou, Bingbing Fan, Deliang Chen, Liwei Zhang, Hailong Wang, Hongli ..., Crystal Research and Technology, 2015

Well‐dispersed carbon‐doped ZnSn(OH)6 submicrocubes were successfully synthesized through a facile and economical hydrothermal method at 433K, which used green chemical glucose (C6H12O6) as the carbon‐doping source. Photocatalytic activity of the as‐synthesized C‐doped ZnSn(OH)6 was evaluated by ...


Synthesis of Nitrogen-Doped Graphene Quantum Dots at Low Temperature for Electrochemical Sensing Trinitrotoluene

18-Nov-2015 | Zhewei Cai; Fumin Li; Ping Wu; Lijuan Ji; Hui Zhang; Chenxin Cai; Dominic F. Gervasio, Analytical Chemistry, 2015

Nitrogen-doped graphene quantum dots (N-GQDs) are synthesized at low temperature as a new catalyst allowing electrochemical detection of 2,4,6-trinitrotoluene (TNT). N-GQDs are made by an oxidative ultrasonication of graphene oxide (GO) forming nanometer-sized species, which are then chemically ...


Accelerated nanoparticles synthesis in alcohol–water-mixture-based solution plasma

17-Nov-2015 | Tomohito Sudare; Tomonaga Ueno; Anyarat Watthanaphanit; Nagahiro Saito, Physical Chemistry Chemical Physics, 2015

An extraordinary high-speed synthesis of gold nanoparticles (AuNPs) was discovered by synthesizing the AuNPs in ethanol–water mixtures using a solution plasma process (SPP). The influence of the ethanol mole fraction (χethanol) in the ethanol–water mixtures on the reduction rate of gold chloride ...


O2 Inhibition of Ni‐Containing CO Dehydrogenase Is Partly Reversible

16-Nov-2015 | Meriem Merrouch, Jessica Hadj‐Saïd, Lilith Domnik, Holger Dobbek, Christophe Léger, Sébastien Dementin, Vincent Fourmond, Chemistry - A European Journal, 2015

Abstract Ni‐containing CO dehydrogenases (CODHs) are very efficient metalloenzymes that catalyze the conversion between CO2 and CO. They are a source of inspiration for designing CO2‐reduction catalysts and can also find direct use in biotechnology. They are deemed extremely sensitive to O2, ...


Coating Platinum Nanoparticles with Methyl Radicals: Effects on Properties and Catalytic Implications

13-Nov-2015 | Ronen Bar‐Ziv, Israel Zilbermann, Michael Shandalov, Vladimir Shevchenko, Dan Meyerstein, Chemistry - A European Journal, 2015

Abstract It was recently reported that the reaction of methyl radicals with Pt0 nanoparticles (NPs), prepared by the reduction of Pt(SO4)2 with NaBH4, is fast and yields as the major product stable (Pt0‐NPs)(CH3)n and as side products, in low yields, C2H6, C2H4, and some oligomers. We decided ...


IJERPH, Vol. 12, Pages 14420-14428: Reduction of Acid-Fast and Non-Acid-Fast Bacteria by Point of Use Coagulation-Flocculation-Disinfection

13-Nov-2015 | Casanova, Lisa M.; Sobsey, Mark D., International Journal of Environmental Research and Public Health, 2015

Point of use (POU) household water treatment is increasingly being adopted as a solution for access to safe water. Non-tuberculous Mycobacteria (NTM) are found in water, but there is little research on whether NTM survive POU treatment. Mycobacteria may be removed by multi-barrier treatment ...


Enhancing hematite photoanode activity for water oxidation by incorporation of reduced graphene oxide

12-Nov-2015 | Saulo A Carminati, Flavio Leandro De Souza, Ana F Nogueira, ChemPhysChem, 2015

Two effective methods to prepare reduced graphene oxide (rGO)/hematite nanostructured photoanodes and their photoelectrochemical characterization towards water splitting reactions are presented in this work. First, graphene oxide (GO) was reduced to rGO using hydrazine in a basic solution ...


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