ChemPhysChem

Cover image for Vol. 16 Issue 6

Editor: Greta Heydenrych; Editorial Board Chairs: Christian Amatore, Michael Grätzel, Michel Orrit

Online ISSN: 1439-7641

Associated Title(s): Advanced Materials, ChemBioChem, ChemCatChem, ChemElectroChem, ChemSusChem, Small

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The following papers are very important in the opinion of two referees.

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Reversible Logic Gates Based on Enzyme-Biocatalyzed Reactions and Realized in Flow Cells: A Modular Approach

Brian E. Fratto and Prof. Dr. Evgeny Katz

Reversible Logic Gates Based on Enzyme-Biocatalyzed Reactions and Realized in Flow Cells: A Modular ApproachSmart building blocks: Enzyme-modified flow cells with variable connections mimicking reversible logic gates are presented.

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Exploring the Free Energy and Conformational Landscape of tRNA at High Temperature and Pressure

Caroline Schuabb, Melanie Berghaus, Christopher Rosin and Prof. Dr. Roland Winter

Exploring the Free Energy and Conformational Landscape of tRNA at High Temperature and PressureRNA under pressure! Exploration of the conformational and free-energy landscape of the 76-residue yeast phenylalanine transfer RNA (tRNAPhe; see figure) reveals that RNA unfolding differs not only from protein unfolding but also from DNA melting. Compared with the pronounced temperature effect, pressure-dependent changes in the secondary structure of tRNAPhe are small, however, even up to the 1000 MPa range.

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Electrocatalytic Oxidation and Adsorption Rate of Methanol at Pt Stepped Single-Crystal Electrodes and Effect of Ru Step Decoration: A DEMS Study

Dr. Ehab Mostafa, Dr. Abd-El-Aziz A. Abd-El-Latif and Prof. Dr. Helmut Baltruschat

Electrocatalytic Oxidation and Adsorption Rate of Methanol at Pt Stepped Single-Crystal Electrodes and Effect of Ru Step Decoration: A DEMS StudyMethanol adsorption rate: At Pt electrodes, methanol is oxidized either to dissolved intermediates or—in parallel—to CO2 via adsorbed CO. The adsorption rate of methanol is dependent on the surface structure and increases with the step density. A further increase is observed upon step decoration by Ru.

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Interphase Evolution at Two Promising Electrode Materials for Li-Ion Batteries: LiFePO4 and LiNi1/2Mn1/2O2

Dr. Nicolas Dupré, Dr. Marine Cuisinier, Dr. Jean-Frederic Martin and Dr. Dominique Guyomard

Interphase Evolution at Two Promising Electrode Materials for Li-Ion Batteries: LiFePO4 and LiNi1/2Mn1/2O2The importance of the chemical history of the electrode surface before electrochemical cycling as well as the correlation between interface phenomena, the formation/evolution of an interphase, and the electrochemical behavior of LiFePO4 and LiNi1/2Mn1/2O2 electrodes are investigated by magic-angle-spinning nuclear magnetic resonance, electron energy loss spectroscopy, and X-ray photoelectron spectroscopy. These techniques allow the study of interface aging and failure mechanisms.

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Ethanol Oxidation on Pt Single-Crystal Electrodes: Surface-Structure Effects in Alkaline Medium

Carlos Busó-Rogero, Prof. Enrique Herrero and Prof. Juan M. Feliu

Ethanol Oxidation on Pt Single-Crystal Electrodes: Surface-Structure Effects in Alkaline MediumInverted reactivity order: Ethanol oxidation on platinum single-crystal electrodes in alkaline solutions produces mainly acetate and the activity order is the opposite of that found in acid solutions. The formation of acetaldehyde deactivates the surface (see picture).

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