ChemElectroChem

Cover image for ChemElectroChem

February 11, 2014

Volume 1, Issue 2

Pages 301–475

  1. Cover Pictures

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
    1. You have free access to this content
      Cover Picture: Tailoring Biomass-Derived Carbon Nanoarchitectures for High-Performance Supercapacitors (ChemElectroChem 2/2014) (page 301)

      Dr. Huanlei Wang, Dr. Zhi Li and Prof. David Mitlin

      Version of Record online: 12 FEB 2014 | DOI: 10.1002/celc.201490006

      Thumbnail image of graphical abstract

      On p. 332, H. Wang, Z. Li, and D. Mitlin show that biomass-derived carbons with low cost and unique nano-sized architectures can be excellent electrode materials for electrochemical capacitors—a promising class of energy-storage devices.

    2. You have free access to this content
      Back Cover: Electrochemical Cycling of Sodium-Filled Silicon Clathrate (ChemElectroChem 2/2014) (page 476)

      Nicholas A. Wagner, Rahul Raghavan, Ran Zhao, Dr. Qun Wei, Prof. Xihong Peng and Prof. Candace K. Chan

      Version of Record online: 12 FEB 2014 | DOI: 10.1002/celc.201490011

      Thumbnail image of graphical abstract

      The picture shows lithium insertion into a Type-II clathrate, Na24Si136 , which is evaluated as an anode for lithium-ion batteries and studied with X-ray diffraction and first principles methods by C. K. Chan et al. on p. 347.

  2. Cover Profile

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
    1. You have free access to this content
      Tailoring Biomass-Derived Carbon Nanoarchitectures for High-Performance Supercapacitors (page 302)

      Dr. Huanlei Wang, Dr. Zhi Li and Prof. David Mitlin

      Version of Record online: 22 JAN 2014 | DOI: 10.1002/celc.201300258

      Thumbnail image of graphical abstract

      “This Concept paper involves two case studies for creating high-performance biomass-derived carbons for electrochemical energy storage…” This and more about the story behind the front cover research can be found at 10.1002/celc.201300258. View the front cover at 10.1002/celc.201300259.

  3. Graphical Abstract

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
  4. Masthead

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
    1. Masthead: ChemElectroChem 2/2014 (page 312)

      Version of Record online: 12 FEB 2014 | DOI: 10.1002/celc.201490008

  5. News

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
  6. Minireview

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
    1. Iridium Application in Low-Temperature Acidic Fuel Cells: Pt-Free Ir-Based Catalysts or Second/Third Promoting Metal in Pt-Based Catalysts? (pages 318–328)

      Prof. Ermete Antolini

      Version of Record online: 23 JUL 2013 | DOI: 10.1002/celc.201300049

      Thumbnail image of graphical abstract

      A promising use of Ir is its addition to the benchmark Pt-Ru (for methanol oxidation) and Pt-Sn (for ethanol oxidation) catalysts, as this gives rise to higher catalytic activity than the benchmark, while the substitution with Ir of the cocatalyst (Ru) in Pt-Ru and the catalyst (Pt) in Pt-Sn results in a similar activity to that of the benchmark.

  7. Highlight

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
    1. Watching Microstructures in Action in Lithium-Ion Batteries (pages 329–331)

      Dr. Jun Wang

      Version of Record online: 21 JAN 2014 | DOI: 10.1002/celc.201300267

      Thumbnail image of graphical abstract

      Through the looking glass: Synchrotron X-ray micro- and nano-tomography techniques open up new opportunities for studying in situ microstructural changes during the electrochemical cycling of energy-storage devices.

  8. Concept

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
    1. Tailoring Biomass-Derived Carbon Nanoarchitectures for High-Performance Supercapacitors (pages 332–337)

      Dr. Huanlei Wang, Dr. Zhi Li and Prof. David Mitlin

      Version of Record online: 5 DEC 2013 | DOI: 10.1002/celc.201300127

      Thumbnail image of graphical abstract

      Don't throw that away! Biomass-derived carbons with low cost and unique nano-sized architectures are proved to be excellent electrode materials for electrochemical capacitors—a promising class of energy storage devices.

  9. Communications

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
    1. Ba0.5Sr0.5Co0.8Fe0.2O3-δ Perovskite Activity towards the Oxygen Reduction Reaction in Alkaline Media (pages 338–342)

      Dr. Emiliana Fabbri, Rhiyaad Mohamed, Dr. Pieter Levecque, Dr. Olaf Conrad, Dr. Rüdiger Kötz and Prof. Thomas J. Schmidt

      Version of Record online: 12 NOV 2013 | DOI: 10.1002/celc.201300157

      Thumbnail image of graphical abstract

      Perovskite catalysts: Cyclic voltammograms in Ar- and O2-saturated KOH reveal that the onset for the oxygen reduction reaction (ORR) occurs at potentials below ∼0.77 VRHE. Rotating ring-disk electrode measurements and Koutecky–Levich analysis prove that for Ba0.5Sr0.5Co0.8Fe0.2O3-δ, the ORR does not fully proceed via a four-electron process, leading to the parallel formation of OH and HO2 (see picture).

    2. Self-Charging Electrochemical Biocapacitor (pages 343–346)

      Dmitry Pankratov, Dr. Zoltan Blum, Dr. Dmitry B. Suyatin, Prof. Dr. Vladimir O. Popov and Prof. Dr. Sergey Shleev

      Version of Record online: 11 DEC 2013 | DOI: 10.1002/celc.201300142

      Thumbnail image of graphical abstract

      Two-in-one: A biological supercapacitor—a combination of an electrochemical capacitor and an enzymatic fuel cell—is presented. Both the capacitor and the biofuel cell are built from nanomaterials, namely, polyaniline/carbon nanotube composites and redox enzyme/gold nanoparticle assemblies. The biosupercapacitor is self-charging, membrane- and mediator-less.

    3. Electrochemical Cycling of Sodium-Filled Silicon Clathrate (pages 347–353)

      Nicholas A. Wagner, Rahul Raghavan, Ran Zhao, Dr. Qun Wei, Prof. Xihong Peng and Prof. Candace K. Chan

      Version of Record online: 23 SEP 2013 | DOI: 10.1002/celc.201300104

      Thumbnail image of graphical abstract

      Be our guest! Silicon clathrate with sodium guest atoms is studied as a potential anode material for lithium-ion batteries. An electrochemical, structural, and first-principles analysis is conducted to understand the phase changes occurring upon lithium insertion and removal from these cage-like silicon structures.

    4. Identification of Al–dtpa–PO4 Ternary Complex Inhibiting Hydration of Alumina Electrodes in Electrolytic Capacitors (pages 354–357)

      Masashi Ozawa, Naoto Kawayauchi, Yoko Mishima, Ayako Sugiue, Mizuho Ueno, Dr. Kyosuke Isoda, Masao Sakakura, Dr. Tomoaki Sugaya and Prof. Makoto Tadokoro

      Version of Record online: 10 SEP 2013 | DOI: 10.1002/celc.201300098

      Thumbnail image of graphical abstract

      A novel aluminum complex that inhibits hydration-related deterioration of the alumina electrode in electrolytic capacitors has been isolated. The complex forms ternary complexes with phosphate ions and protects the electrode surface by forming a phosphate-ion monolayer. The ternary complex is essential to maintain a constant phosphate-ion concentration in the capacitor electrolytic solution, to protect the electrode for >10 000 h at 105 °C.

    5. Composition-Dependent Oxygen Reduction Activity and Stability of Pt–Cu Thin Films (pages 358–361)

      Anna K. Schuppert, Angel A. Topalov, Alan Savan, Prof. Dr. Alfred Ludwig and Dr. Karl J. J. Mayrhofer

      Version of Record online: 26 JUL 2013 | DOI: 10.1002/celc.201300078

      Thumbnail image of graphical abstract

      Catalyst considerations: Pt–Cu alloys are prepared as a thin-film material library with a composition gradient. By using a scanning flow cell coupled to on-line mass spectrometry, this library can be screened over to measure the activity towards the oxygen reduction reaction as well as the time-resolved dissolution of both alloy components in parallel. This results in comprehensive insights into the composition-dependent performance of the Pt–Cu system.

    6. Catalyst-Free Electrochemical Grignard Reagent Synthesis with Room-Temperature Ionic Liquids (pages 362–365)

      Daniel Luder, Dr. Alexander Kraytsberg and Prof. Yair Ein-Eli

      Version of Record online: 15 JUL 2013 | DOI: 10.1002/celc.201300065

      Thumbnail image of graphical abstract

      Electrochemical synthesis of EtMgBr in ionic-liquid media is demonstrated. A linear dependence of product concentration on total charge passage is also confirmed. This process could be used in many applications ranging from an industrial bulk GR synthesis in a controlled flowing framework or electrolyte synthesis for magnesium batteries before and even during discharge.

    7. Electrochemical and ESR Study on Pt-TiOx/C Electrocatalysts with Enhanced Activity for ORR (pages 366–370)

      Prof. Dr. Go Sakai, Tatsuya Arai, Toshiaki Matsumoto, Tetsuya Ogawa, Mayumi Yamada, Dr. Koshi Sekizawa and Takumi Taniguchi

      Version of Record online: 22 JUL 2013 | DOI: 10.1002/celc.201300036

      Thumbnail image of graphical abstract

      Pt-TiOx/C electrocatalysts possess specific activities for the oxygen reduction reaction of about 1.5 times higher than that of conventional Pt/C. Electron-spin resonance spectra suggest that the specific activity of Pt-TiOx/C is related to the amount of ESR-active species.

    8. Layered P2-Na0.66Fe0.5Mn0.5O2 Cathode Material for Rechargeable Sodium-Ion Batteries (pages 371–374)

      Jiantie Xu, Dr. Shu-Lei Chou, Dr. Jian-Li Wang, Prof. Hua-Kun Liu and Prof. Shi-Xue Dou

      Version of Record online: 26 AUG 2013 | DOI: 10.1002/celc.201300026

      Thumbnail image of graphical abstract

      Charging ahead: A layered P2-Na0.66Fe0.5Mn0.5O2 cathode material for use in sodium-ion batteries was synthesized by using the sol-gel method. The electrochemical performance results show that the as-prepared P2-Na0.66Fe0.5Mn0.5O2 electrode has a high energy density and good cycling performance.

    9. Resolving the Grain Boundary and Lattice Impedance of Hot-Pressed Li7La3Zr2O12 Garnet Electrolytes (pages 375–378)

      Dr. Wyatt E. Tenhaeff, Dr. Ezhiyl Rangasamy, Dr. Yangyang Wang, Dr. Alexei P. Sokolov, Dr. Jeff Wolfenstine, Dr. Jeffrey Sakamoto and Dr. Nancy J. Dudney

      Version of Record online: 24 JUL 2013 | DOI: 10.1002/celc.201300022

      Thumbnail image of graphical abstract

      Rock solid: The cubic-stabilized garnet solid electrolyte with a nominal composition of Li6.28Al0.24La3Zr2O12 is thoroughly characterized by impedance spectroscopy. By varying the frequency of the applied AC signal over 11 orders of magnitude for characterizations from −100 to +60 °C, the relative contributions of grain and grain boundary conduction are unambiguously resolved.

  10. Articles

    1. Top of page
    2. Cover Pictures
    3. Cover Profile
    4. Graphical Abstract
    5. Masthead
    6. News
    7. Minireview
    8. Highlight
    9. Concept
    10. Communications
    11. Articles
    1. Tris(4,4′-dimethyl-2,2′-bipyridine)iron(II)-Exchanged Nafion for Arsenite Determination in Water Samples (pages 379–383)

      Dr. Uday Pratap Azad and Dr. Vellaichamy Ganesan

      Version of Record online: 11 DEC 2013 | DOI: 10.1002/celc.201300188

      Thumbnail image of graphical abstract

      Waterproofing: A metal-complex-based cost-effective electrochemical sensor is fabricated for the selective determination of trace-level arsenite. The applicability of the proposed sensor is demonstrated by estimating arsenite present in river- and drinking-water samples.

    2. Fabrication of Efficient NiO Photocathodes Prepared via RDS with Novel Routes of Substrate Processing for p-Type Dye-Sensitized Solar Cells (pages 384–391)

      Dr. Muhammad Awais, Dr. Elizabeth Gibson, Prof. Johannes G. Vos, Dr. Denis P. Dowling, Prof. Anders Hagfeldt and Dr. Danilo Dini

      Version of Record online: 20 NOV 2013 | DOI: 10.1002/celc.201300178

      Thumbnail image of graphical abstract

      NiO thin films for p-DSCs are obtained through rapid-discharge sintering (RDS) of metal oxide nanoparticles under a plasma atmosphere. RDS NiO samples display mesoporous features and large surface areas for efficient dye-loading, they increase the current density in the corresponding cathodic DSCs, and have a 7 % increase in efficiency.

    3. Electrodeposition of a Mn–Cu–ZnO Hybrid Material for Supercapacitors: A Soft X-ray Fluorescence and Absorption Microspectroscopy Study (pages 392–399)

      Prof. Benedetto Bozzini, Dr. Alessandra Gianoncelli, Dr. Claudio Mele, Prof. Ivonne Sgura and Dr. Maya Kiskinova

      Version of Record online: 7 NOV 2013 | DOI: 10.1002/celc.201300099

      Thumbnail image of graphical abstract

      Point-by-point: Mn–Cu–ZnO hybrid material with a high specific capacitance and good cycling stability is electrodeposited on a thin-layer Hull-type microcell and investigated by using soft X-ray microspectroscopy to obtain quantitative information regarding the spatial distribution of the elements and their chemical state as a function of current density localization.

    4. You have full text access to this OnlineOpen article
      Liquid|Liquid Interfacial Photoelectrochemistry of Chromoionophore I Immobilised in 4-(3-Phenylpropyl)Pyridine Microdroplets (pages 400–406)

      Thomas R. Bartlett, Dr. Safeer Ahmed, Dr. Floriana Tuna, Prof. David Collison, Prof. Gary J. Blanchard and Prof. Frank Marken

      Version of Record online: 7 OCT 2013 | DOI: 10.1002/celc.201300090

      Thumbnail image of graphical abstract

      Pushing boundaries: Chromoionophore I, which a well-known hydrophobic pH indicator, is photoelectrochemically active when dissolved in 4-(3-phenylpropyl)pyridine, immobilised onto graphite electrodes in the form of microdroplets, and immersed in pH 2 aqueous buffer solution (see picture).

    5. First-Principles Modeling of Electrochemical Water Oxidation on MnO:ZnO(001) (pages 407–415)

      Dr. Dalal K. Kanan, Dr. John A. Keith and Prof. Dr. Emily A. Carter

      Version of Record online: 21 JAN 2014 | DOI: 10.1002/celc.201300089

      Thumbnail image of graphical abstract

      Time to split! First-principles quantum mechanics studies on visible-light-absorbing MnO:ZnO alloy photoanodes for catalytic water oxidation are described. The computed overpotential of 0.82 V for the oxidation of 0.5 monolayers of H2O on Mn:ZnO(001) under vacuum conditions (see picture) is comparable to calculated values for hematite.

    6. Nanocomposite Graphene/Pt Electrocatalyst as Economical Counter Electrode for Dye-Sensitized Solar Cells (pages 416–425)

      Dr. Min-Hsin Yeh , Dr. Lu-Yin Lin , Jheng-Sin Su, Yow-An Leu, Dr. R. Vittal, Prof.  Chia-Liang Sun and Prof.  Kuo-Chuan Ho

      Version of Record online: 10 OCT 2013 | DOI: 10.1002/celc.201300081

      Thumbnail image of graphical abstract

      Counter attack: A nanocomposite film of graphene and Pt nanoparticles (GN/PtNPs) is synthesized as the catalyst for the counter electrode of a dye-sensitized solar cell. The excellent electrocatalytic ability of GN/PtNPs is attributed mainly to its high intrinsic heterogeneous rate constant for the I3 reduction reaction (see picture) and partly to its high electrochemical surface area.

    7. Enhanced Thermoelectric Power in Ionic Liquids (pages 426–430)

      Dr. Veronika Zinovyeva, Dr. Sawako Nakamae, Dr. Marco Bonetti and Prof. Michel Roger

      Version of Record online: 23 JUL 2013 | DOI: 10.1002/celc.201300074

      Thumbnail image of graphical abstract

      A thiolate/disulfide organic redox couple shows remarkable stability in a thermogalvanic cell with a 1-ethyl-3-methylimidazolium tetrafluoroborate/acetonitrile binary mixture. The thermopower depends strongly on concentrations of both the ionic liquid and the redox couple. These parameters can be used to enhance the thermopower and the thermoelectric efficiency of ionic-liquid thermocells.

    8. Molecular-Scale Imaging of Water Near Charged Surfaces (pages 431–435)

      Dr. Michael Mehlhorn, Dr. Sebastian Schnur, Prof. Dr. Axel Groß and Prof. Dr. Karina Morgenstern

      Version of Record online: 24 JUL 2013 | DOI: 10.1002/celc.201300063

      Thumbnail image of graphical abstract

      So simple? Since the basic idea of ultrahigh-vacuum (UHV) electrochemical modeling emerged, it has been claimed that UHV model experiments are too simple because they do not include the electrode potential. This combined scanning tunneling microscopy and density functional theory study gives insight into the influence of the electric field on single molecules in the diffusive layer. A field reorients adsorbed water molecules on water bilayers on Cu(111) at a distance of about 1 nm from the surface.

    9. Theory of Kinetically Controlled Electrode Reaction Coupled to Ion Transfer across the Liquid/Liquid Interface (pages 436–440)

      Šebojka Komorsky-Lovrić and Milivoj Lovrić

      Version of Record online: 10 JUL 2013 | DOI: 10.1002/celc.201300048

      Thumbnail image of graphical abstract

      An electron-transfer reaction at a graphite electrode covered by a thin film of an organic solvent is studied theoretically. The redox couple is confined within the film, and conductivity is achieved by the transfer of an anion of supporting electrolyte across the organic solvent/water interface. The dimensionless kinetic parameter κ can be used to determine the standard rate constant of the reaction.

    10. Simultaneous Electrochemical Multiplexed Immunoassay of Biomarkers Based on Multifunctionalized Graphene Nanotags (pages 441–447)

      Dr. Qunfang Li, Prof. Dianping Tang, Dr. Fangming Lou, Prof. Ximei Yang and Prof. Guonan Chen

      Version of Record online: 10 JUL 2013 | DOI: 10.1002/celc.201300039

      Thumbnail image of graphical abstract

      Multitasker: A sensitive and feasible multiplexed immunoassay protocol for simultaneous electrochemical determination of biomarkers is presented. The assay uses multifunctionalized graphene nanotags on a cyclodextrin-modified immunosensor.

    11. Phosphate-Doped Carbon Black as Pt Catalyst Support: Co-catalytic Functionality for Dimethyl Ether and Methanol Electro-oxidation (pages 448–454)

      Min Yin, Dr. Yunjie Huang, Prof. Qingfeng Li, Prof. Jens Oluf Jensen, Dr. Lars N. Cleemann, Dr. Wei Zhang, Prof. Niels J. Bjerrum and Prof. Wei Xing

      Version of Record online: 9 AUG 2013 | DOI: 10.1002/celc.201300025

      Thumbnail image of graphical abstract

      Extra support: Niobium phosphate-doped (NbP-doped) carbon composites are prepared as supports for Pt catalysts. The supported catalysts are used in the electrocatalytic oxidation of methanol and dimethyl ether. The electrocatalytic functionality of NbP is demonstrated to enhance the catalytic activity and stability of the Pt metal during the electrocatalytic reactions.

    12. Mechanistic Study of the Electrocatalytic Oxidation of Alcohols by TEMPO and NHPI (pages 455–462)

      Dr. Mohammad Rafiee, Prof. Dr. Babak Karimi and Saber Alizadeh

      Version of Record online: 1 JUL 2013 | DOI: 10.1002/celc.201300016

      Thumbnail image of graphical abstract

      Voltammetry is applied as a versatile and informative technique to study the electrocatalytic performances of (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) and N-hydroxyphthalimide (NHPI) towards alcohol oxidation in aqueous solutions. Voltammetric analyses confirm that both compounds act as powerful electrocatalysts for this type of reaction without the need of co-catalysts.

    13. Directly Grown K0.33WO3 Nanosheet Film Electrode for Fast Direct Electron Transfer of Protein (pages 463–470)

      Dr. Jinping Liu, Prof. Lei Liao, Dr. Zhisong Lu, Dr. Bin Yan, Dr. Ting Yu, Dr. Zhe Zheng, Dr. Jixuan Zhang, Dr. Hao Gong, Prof. Xintang Huang and Prof. Chang Ming Li

      Version of Record online: 1 JUL 2013 | DOI: 10.1002/celc.201300013

      Thumbnail image of graphical abstract

      A K0.33WO3 nanosheet film electrode, consisting of numerous thin K0.33WO3 nanosheets directly grown on a W substrate with high electrical conductivity and good hydrophilicity is an attractive electrode material for direct-electrochemistry-based biosensors with outstanding performance (high sensitivity to glucose: 66.4 μA mM−1 cm−2).

    14. Significant Efficiency Enhancement of Bulk Heterojunction Organic Photovoltaics Using Solution-Processable Interfacial Bilayers (pages 471–475)

      Dr. Ze Zhong, Dr. Jian Liu, Prof. Zhi Yuan Xie and Prof. Zhi Yuan Wang

      Version of Record online: 1 JUL 2013 | DOI: 10.1002/celc.201300002

      Thumbnail image of graphical abstract

      A stacked bilayer of phenyl-grafted graphene oxide (P-GO) and a donor material with high hole-transfer mobility is induced as interfacial bilayer in OPV cells between the active materials and anode. Single-layer P-GO acts as interfacial material and the donor material as a partition layer. This interfacial bilayer can minimize exciton quenching and inverse current, thus increasing Jsc, which significantly improves the performance of OPV cells.

SEARCH

SEARCH BY CITATION