Networked Graphitic Structures Grown from Dense Microemulsions as High Performance Electrode Material (abstract)

Synthesis of Durable Platinum Catalyst for Proton Exchange Membrane Fuel Cells in Bicontinuous Microemulsion (abstract)

Reversible Nanoparticle Formation As a Potential Strategy for PEMFC Catalyst Regeneration (abstract)

Stimulated-healing of proton exchange membrane fuel cell catalyst

Platinum nanoparticles, which are used as catalysts in Proton Exchange Membrane Fuel Cells (PEMFC), tend to degrade after long-term operation. We discriminate the following mechanisms of the degradation: poisoning, migration and coalescence, dissolution, and electrochemical Ostwald ripening. There are two ways to tackle this problem. The first...

Dissipative self-assembly: A novel self-healing mechanism for functional materials

Self-assembled systems formed of micelles or vesicles have frequently been discussed as model systems for self-healing materials because their structure is dictated by thermodynamics and hence they quickly restore upon perturbation. In this aspect, they mimic many natural systems such as biological cells. However, in contrast to most synthetic...

Slow growth of the Rayleigh-Plateau instability in aqueous two phase systems

This paper studies the Rayleigh-Plateau instability for co-flowing immiscible aqueous polymer solutions in a microfluidic channel. Careful vibration-free experiments with controlled actuation of the flow allowed direct measurement of the growth rate of this instability. Experiments for the well-known aqueous two phase system (ATPS, or aqueous...

Carbon nanostructures and networks produced by chemical vapor deposition

The invention pertains to a method for manufacturing crystalline carbon nanostructures and/or a network of crystalline carbon nanostructures, comprising: (i) providing a bicontinuous micro-emulsion containing metal nanoparticles having an average particle size between 1and 100nm; (ii) bringing said bicontinuous micro-emulsion into contact with a...

Proton binding by linear, branched, and hyperbranched polyelectrolytes

This article reviews our understanding of ionization processes of weak polyelectrolytes. The emphasis is put on a general introduction to site binding models, which are able to account for many experimental features of linear and branched polyelectrolytes, including dendrimers. These models are fully compatible with the classical description of...

Electrode compartment for an electrochemical cell, a refreshing system for it and an emulsion to be used therefore

The invention relates to an electrode compartment for an electrochemical cell, including a bicontinuous micro-epulsion, wherein catalytic parts are generated in-situ in a fluid, which can act as a cathode as well as an anode. The electrode compartment comprises a connection to supply fuel or an oxidator, for example oxygen, to the compartment....

Stick-Slip Transition at the Nanometer Scale

Ammoniumnitraat volgens het stengel proces

Document(en) uit de collectie Chemische Procestechnologie