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Andreas Züttel

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Publications associées (108)

Effect of Boron Doping On Graphene Oxide for Ammonia Adsorption

Andreas Züttel, Heena Yang, Youngdon Ko

Boron doped graphene oxide (B-GO) is a highly effective adsorbent for ammonia due to the high density of strong Lewis acid sites arising from the boron. GO was doped by various amounts of boron described as xB-GO (x= 1.0, 3.0, and 5.0). B-GO was successful ...

Wiley-V C H Verlag Gmbh2017

Post-Synthesis Amine Borane Functionalization of a Metal-Organic Framework and Its Unusual Chemical Hydrogen Release Phenomenon

Andreas Züttel

A novel strategy for post-synthesis amine borane functionalization of MOFs under gas-solid phase transformation, utilizing gaseous diborane, is reported. The covalently confined amine borane derivative decorated on the framework backbone is stable when pre ...

Wiley-V C H Verlag Gmbh2017

Characteristics and properties of nano-LiCoO2 synthesized by pre-organized single source precursors: Li-ion diffusivity, electrochemistry and biological assessment

Nam Hee Kwon, Andreas Züttel, Mariana Spodaryk

Background: LiCoO2 is one of the most used cathode materials in Li-ion batteries. Its conventional synthesis requires high temperature (>800 degrees C) and long heating time (>24 h) to obtain the micronscale rhombohedral layered high-temperature phase of L ...

2017

Functionalised metal-organic frameworks: a novel approach to stabilising single metal atoms

Andreas Züttel, Elsa Callini

We have investigated the potential of metal-organic frameworks for immobilising single atoms of transition metals using a model system of Pd supported on NH2-MIL-101(Cr). Our transmission electron microscopy and in situ Raman spectroscopy results give evid ...

Royal Society of Chemistry2017

High Influence of Potassium Bromide on Thermal Decomposition of Ammonia Borane

Andreas Züttel

The present paper presents a thorough experimental investigation of mechanistic pathways of thermal decomposition of ammonia borane (AB) and its mixture with KBr. A comparative detection and temperature-dependent in situ monitoring of the decomposition pro ...

Amer Chemical Soc2016

Nanostructured materials for solid-state hydrogen storage: A review of the achievement of COST Action MP1103

Andreas Züttel, Elsa Callini

In the framework of the European Cooperation in Science and Technology (COST) Action MP1103 Nanostructured Materials for Solid-State Hydrogen Storage were synthesized, characterized and modeled. This Action dealt with the state of the art of energy storage ...

Pergamon-Elsevier Science Ltd2016

The Origin of the Catalytic Activity of a Metal Hydride in CO2 Reduction

Corsin Battaglia, Laetitia Bernard, Andreas Züttel, Shunsuke Kato

Atomic hydrogen on the surface of a metal with high hydrogen solubility is of particular interest for the hydrogenation of carbon dioxide. In a mixture of hydrogen and carbon dioxide, methane was markedly formed on the metal hydride ZrCoHx in the course of ...

Wiley-VCH Verlag GmbH2016

Investigation of a Pt containing washcoat on SiC foam for hydrogen combustion applications

Andreas Züttel

A commercial Pt based washcoat, used for catalytic methane combustion, was studied supported on a commercial SIC foam as catalytic material (Pt/SiC) for catalytic hydrogen combustion (CHC). Structural and chemical characterization was performed using Elect ...

Elsevier Science Bv2016

Stabilization of volatile Ti(BH4)(3) by nano-confinement in a metal-organic framework

Andreas Züttel, Elsa Callini

Liquid complex hydrides are a new class of hydrogen storage materials with several advantages over solid hydrides, e.g. they are flexible in shape, they are a flowing fluid and their convective properties facilitate heat transport. The physical and chemica ...

2016

A novel method for the synthesis of solvent-free Mg(B3H8)(2)

Andreas Züttel, Jianmei Huang

This communication presents a novel and solvent-free method to synthesise Mg(B3H8)(2) via the gas-solid reaction between B2H6 and Mg2NiH4, which overcomes the limitations of wet chemical methods requiring solvent removal. ...

Royal Soc Chemistry2016

Complex and liquid hydrides for energy storage

Andreas Züttel, Elsa Callini, Ping Chen

The research on complex hydrides for hydrogen storage was initiated by the discovery of Ti as a hydrogen sorption catalyst in NaAlH4 by Boris Bogdanovic in 1996. A large number of new complex hydride materials in various forms and combinations have been sy ...

Springer2016

Manipulating the reaction path of the CO2 hydrogenation reaction in molecular sieves

Rolf Erni, Davide Ferri, Andreas Züttel, Elsa Callini

We demonstrate that the kinetics of the Sabatier reaction catalysed by sorption catalysts depends on the nanostructure of the catalyst-sorbent system. The catalysts are prepared by ion exchange of a nickel nitrate solution in two zeolites with different po ...

Royal Society of Chemistry2015

A novel strategy for reversible hydrogen storage in Ca(BH4)(2)

Andreas Züttel

We report that decomposition pathway of Ca(BH4)(2) can be efficiently controlled by reaction temperature. That is, it decomposes into CaB6 at a lower temperature range of 320 to 350 degrees C, but into amorphous boron at 400 to 450 degrees C. We identified ...

Royal Society of Chemistry2015

Hydrogen Desorption Kinetics in Metal Intercalated Fullerides

Andreas Züttel, Philippe Mauron

For different hydrogenated metal intercalated fullerides (Na10C60-H, Li12C60-H, and Li28C60-H) the activation energies for hydrogen desorption were determined by DSC. The Vyazovkin advanced method (VA) was used for the calculation of the reaction model fre ...

American Chemical Society2015

Description of the capacity degradation mechanism in LaNi5-based alloy electrodes

Marco Roman Holzer, Andreas Züttel, Philippe Mauron, Mariana Spodaryk

The mechanism of the capacity degradation of LaNi5-based alloy electrodes was investigated with a special focus on the influence of the alloy and surface composition, as well as the unique structure obtained by gas atomisation. The electrochemical properti ...

Elsevier Science Sa2015

The catalyzed hydrogen sorption mechanism in alkali alanates

Andreas Züttel, Shunsuke Kato, Elsa Callini, Philippe Mauron

The hydrogen sorption pathways of alkali alanates were analyzed and a mechanism for the catalytic hydrogen sorption was developed. Gibbs free energy values of selected intermediate steps were calculated based on experimentally determined thermodynamic data ...

Royal Society of Chemistry2015

Storing Renewable Energy in the Hydrogen Cycle

Andreas Züttel, Shunsuke Kato, Elsa Callini

An energy economy based on renewable energy requires massive energy storage, approx. half of the annual energy consumption. Therefore, the production of a synthetic energy carrier, e.g. hydrogen, is necessary. The hydrogen cycle, i.e. production of hydroge ...

Swiss Chemical Soc2015

Rotational disorder in lithium borohydride

Andreas Züttel

LiBH4 has been discussed as a promising hydrogen storage material and as a solid-state electrolyte in lithiumion batteries. It contains 18.5 wt% hydrogen and undergoes a structural phase transition at 381K which is associated with a large increase in rotat ...

E D P Sciences2015

Composite membranes for alkaline electrolysis based on polysulfone and mineral fillers

Barbara Lothenbach, Andreas Züttel

Mineral-based membranes for high temperature alkaline electrolysis were developed by a phase inversion process with polysulfone as binder. The long-term stability of new mineral fillers: wollastonite, forsterite and barite was assessed by 8000 h-long leach ...

Elsevier2015

Storage of Renewable Energy by Reduction of CO2 with Hydrogen

Marco Roman Holzer, Andreas Züttel, Shunsuke Kato, Elsa Callini, Philippe Mauron, Jianmei Huang

The main difference between the past energy economy during the industrialization period which was mainly based on mining of fossil fuels, e.g. coal, oil and methane and the future energy economy based on renewable energy is the requirement for storage of t ...

Schweizerische Chemische Gesellschaft2015

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