Copyright © 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
February 05, 2015
ChemPlusChem 2/2015: Special Issue
The contributions in this special issue of ChemPlusChem focus on metal--air batteries and redox flow batteries. Our guest editors Jaephil Cho, Linda Nazar, and Peter Bruce have ensured that a broad range of papers on cutting-edge research are presented in addition to two Reviews and three Minireviews. In research on lithium--iodine batteries Hye Ryung Byon has developed high-performance aqueous cells in which a solid polymer electrolyte buffer layer serves to passivate the metallic lithium. In another paper of immediate relevance for the operation of vanadium redox flow batteries, Maria Skyllas-Kazacos and Ao Tang model the effect of the ambient temperature on residential-scale battery systems used for peak shifting. Finally, the concept of an "oxygen shuttle" for Li--air batteries is the focus of the article featured on the cover of this issue by Tatsumi Ishihara. More information on this research is given in the cover profile.
Recently Published Articles
- Toward the Prediction of Activity in the Ethylene Polymerisation of ansa-Bis(indenyl) Zirconocenes: Effect of the Stereochemistry and Hydrogenation of the Indenyl Moiety
Dr. Iván Bravo, Dr. Carlos Alonso-Moreno, Dr. Fernando Carrillo-Hermosilla, Dr. Isabel López-Solera, Dr. Antonio Antiñolo and Dr. José Albaladejo
Article first published online: 3 MAR 2015 | DOI: 10.1002/cplu.201500008
Fine-tuning: A combination of experimental and quantum studies on rac- and meso-ansa-bis(indenyl) zirconocene catalysts supports experimental data obtained in ethylene polymerization (see figure). The rac isomer has a higher activity than the meso counterpart, whereas hydrogenation of the six-membered ring leads to an increase in the activity of the rac form.
- Click Reaction as a Tool to Combine Pharmacophores: The Case of Vismodegib
Michael S. Christodoulou, Mattia Mori, Rebecca Pantano, Romina Alfonsi, Paola Infante, Maurizio Botta, Giovanna Damia, Francesca Ricci, Panagiota A. Sotiropoulou, Sandra Liekens, Bruno Botta and Daniele Passarella
Article first published online: 27 FEB 2015 | DOI: 10.1002/cplu.201402435
Mix and Click! Rational design, versatile synthesis, and biological evaluation of Vismodegib analogues has been achieved to confirm the 1,2,3-triazole ring as a creative tool to combine pharmacophores. Interaction with the Hedgehog pathway and the ability to inhibit the formation of blood vessels are discussed (see figure).
- Temperature-Dependent Immobilization of a Tungsten Peroxo Complex That Catalyzes the Hydroxymethoxylation of Olefins
Jizhong Chen, Dr. Li Hua, Chen Chen, Li Guo, Ran Zhang, Angjun Chen, Yuhe Xiu, Xuerui Liu and Prof. Zhenshan Hou
Article first published online: 27 FEB 2015 | DOI: 10.1002/cplu.201402456
Running hot and cold: A tungsten peroxo complex (see picture) can dissociate and diffuse into the liquid phase at the reaction temperature, resulting in a homogeneous reaction. After reaction, the catalytically active species was anchored on the functionalized silica by hydrogen-bonding as the temperature was lowered to 0 oC. This offers an effective approach for catalyst recovery and recycling.
- Synthesis, Physicochemical Characterization, and Interaction with DNA of Long-Alkyl-Chain Gemini Pyridinium Surfactants
Dr. Nadia Barbero, Claudio Magistris, Dr. Pierluigi Quagliotto, Luca Bonandini, Dr. Claudia Barolo, Dr. Roberto Buscaino, Dr. Carlotta Compari, Laura Contardi, Prof. Emilia Fisicaro and Prof. Guido Viscardi
Article first published online: 27 FEB 2015 | DOI: 10.1002/cplu.201500007
Bringing it all together: This study on gemini pyridinium surfactants (see figure) contributes to the knowledge about the aggregation behavior of these compounds and their interactions with biological molecules. Structure–activity relationships were found in the context of the physico-chemical properties of these compounds and DNA compaction. These insights should improve the understanding of surfactant-based gene delivery.
- Three-Dimensional Arrays of 1D MnO2 Nanocrystals for All-Solid-State Asymmetric Supercapacitors
Deepak P. Dubal, Rudolf Holze and Pedro Gomez-Romero
Article first published online: 27 FEB 2015 | DOI: 10.1002/cplu.201500054
New builders on the block: The synthesis of 3D hierarchical structures based on 1D MnO2 nanobuilding blocks by means of a facile and scalable coprecipitation method and their use as electrodes for the assembly of all-solid-state supercapacitors is described. The figure show an example of an asymmetric device based on hierarchical nanoneedle (Nn)-like MnO2 and reduced graphene oxide.