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23 Aktuelle Fachpublikationen zum Thema Filter

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Universal Janus Filters for the Separation of Oil from Emulsions Stabilized by Ionic or Nonionic Surfactants

21.08.2017 | Guojun Liu, Zijie Wang, Morgan Lehtinen, Angewandte Chemie, 2017

Existing Janus filters cannot separate oil from emulsions stabilized by non‐ionic surfactants. Reported here are universal Janus filters that separate oil from emulsions stabilized by not only ionic but also non‐ionic surfactants. To prepare such a filter, poly(dimethyl siloxane) (PDMS) is ...

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Scalable dry‐production of superior 3D net‐like FeOx/C composite anode material for lithium ion battery

14.08.2017 | Min Li, Haoran Du, Long Kuai, Kuangfu Huang, Yuanyuan Xia, Baoyou Geng, Angewandte Chemie, 2017

Carbon‐based transition metal oxides are considered as an appropriate anode material candidate for lithium ion batteries. Herein, a simple and scalable dry‐production method is developed to produce carbon‐encapsulated 3D net‐like FeOx/C material. The process simply associates with pyrolysis of ...

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Scalable dry‐production of superior 3D net‐like FeOx/C composite anode material for lithium ion battery

14.08.2017 | Min Li, Haoran Du, Long Kuai, Kuangfu Huang, Yuanyuan Xia, Baoyou Geng, Angewandte Chemie, 2017

Carbon‐based transition metal oxides are considered as an appropriate anode material candidate for lithium ion batteries. Herein, a simple and scalable dry‐production method is developed to produce carbon‐encapsulated 3D net‐like FeOx/C material. The process simply associates with pyrolysis of ...

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Nanomechanical Infrared Spectroscopy with Vibrating Filters for Pharmaceutical Analysis

07.03.2017 | Maksymilian Kurek, Matthias Carnoy, Peter E. Larsen, Line H. Nielsen, Ole Hansen, Thomas Rades, Silvan Schmid, Anja ..., Angewandte Chemie, 2017

Abstract Standard infrared spectroscopy techniques are well‐developed and widely used. However, they typically require milligrams of sample and can involve time‐consuming sample preparation. A promising alternative is represented by nanomechanical infrared spectroscopy (NAM‐IR) based on the ...

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Periodic Oscillatory Motion of a Self‐Propelled Motor Driven by Decomposition of H2O2 by Catalase

30.11.2016 | Satoshi Nakata, Mio Nomura, Hiroya Yamamoto, Shunsuke Izumi, Nobuhiko J. Suematsu, Yumihiko Ikura, Takashi Amemiya, Angewandte Chemie International Edition, 2016

Abstract A self‐propelled motor driven by the enzymatic reaction of catalase adsorbed onto a filter paper floating on an aqueous solution of H2O2 was used to study nonlinear behavior in the motor's motion. An increase in the concentration of H2O2 resulted in a change from no motion to ...

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Periodic Oscillatory Motion of a Self‐Propelled Motor Driven by Decomposition of H2O2 by Catalase

30.11.2016 | Satoshi Nakata, Mio Nomura, Hiroya Yamamoto, Shunsuke Izumi, Nobuhiko J. Suematsu, Yumihiko Ikura, Takashi Amemiya, Angewandte Chemie, 2016

Abstract A self‐propelled motor driven by the enzymatic reaction of catalase adsorbed onto a filter paper floating on an aqueous solution of H2O2 was used to study nonlinear behavior in the motor's motion. An increase in the concentration of H2O2 resulted in a change from no motion to ...

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Ultra‐Fast Degradation of Chemical Warfare Agents Using MOF–Nanofiber Kebabs

21.09.2016 | Junjie Zhao, Dennis T. Lee, Robert W. Yaga, Morgan G. Hall, Heather F. Barton, Ian R. Woodward, Christopher J. Oldha ..., Angewandte Chemie, 2016

Abstract The threat associated with chemical warfare agents (CWAs) motivates the development of new materials to provide enhanced protection with a reduced burden. Metal–organic frame‐works (MOFs) have recently been shown as highly effective catalysts for detoxifying CWAs, but challenges still ...

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Selective Protein Hyperpolarization in Cell Lysates Using Targeted Dynamic Nuclear Polarization

28.06.2016 | Thibault Viennet, Aldino Viegas, Arne Kuepper, Sabine Arens, Vladimir Gelev, Ognyan Petrov, Tom N. Grossmann, Henrik ..., Angewandte Chemie, 2016

Abstract Nuclear magnetic resonance (NMR) spectroscopy has the intrinsic capabilities to investigate proteins in native environments. In general, however, NMR relies on non‐natural protein purity and concentration to increase the desired signal over the background. We here report on the ...

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Electrostatic Filter Ash from Silane Production as Silicate Substitute in Zeolite Chemistry

21.03.2016 | Andrea Hartmann, Valeriy Petrov, Josef‐Christian Buhl, Katrin Rübner, Matthias Lindemann, Zeitschrift für anorganische und allgemeine Chemie, 2016

Abstract This paper is a case study of complete substitution of sodium‐metasilicate in zeolite Na‐A synthesis by an electrostatic filter ash (FA) arising in high amounts during silane waste incineration process. The silicate abundant FA is a suitable material for reinsertion in zeolite ...

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Rapid and Efficient Separation of Oil from Oil‐in‐Water Emulsions Using a Janus Cotton Fabric

15.12.2015 | Zijie Wang, Yu Wang, Guojun Liu, Angewandte Chemie, 2015

Abstract A novel bi‐functional Janus cotton fabric is used to separate oil from oil‐in‐water emulsions. This fabric is superhydrophobic on one surface and polyamine‐bearing on the other. When used as a filter, the polyamine‐bearing side causes the micrometer‐sized oil droplets to coalesce. The ...

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