Recherche

Afficher tous les résultats pour

Accueil

Personne

Albert Renken

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (53)

Non-thermal plasma catalytic reactor for hydrogen production by direct decomposition of H2S

Lioubov Kiwi, Albert Renken

Hydrogen production by non-thermal plasma (NTP) assisted direct decomposition of hydrogen sulfide was carried out in a novel dielectric barrier discharge (DBD) reactor with the inner electrode made of sintered metal fibers (SMF) also functioning as catalys ...

2008

Forced periodic temperature cycling of chemical reactions in microstructure devices

Lioubov Kiwi, Albert Renken, Martin Luther

In this publication, several stainless steel microstructure reactors specially designed to obtain rapid and periodic temperature changes are presented. Different microstructure reactor designs have been manufactured and tested for their thermal behaviour a ...

Elsevier2008

Photocatalytic discoloration of Methyl Orange on innovative parylene–TiO2 flexible thin films under simulated sunlight

Juan Kiwi, Lioubov Kiwi, Albert Renken, Danièle Laub

Parylene films loaded with TiO2 are reported as hotocatalysts in azo dye discoloration processes. The TiO2 loading of the parylene film was 0.32% (w/w) and the amount of TiO2 on the film was about two orders of magnitude below the TiO2 added in suspension ...

2008

Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE): Photocatalytic applications

Philippe Buffat, Juan Kiwi, Lioubov Kiwi, Andrzej Kulik, Albert Renken, Danièle Laub, Kyumin Lee

An innovative way to fix preformed nanocrystalline TiO2 on low-density polyethylene film (LDPE-TiO2) is presented. The LDPE-TiO2 film was able to mediate the complete photodiscoloration of Orange II using about seven times less catalyst than a TiO2 suspens ...

2007

Palladium Nanoparticle Size Effect in 1-Hexyne Selective Hydrogenation

Lioubov Kiwi, Albert Renken

The structure sensitivity of a liquid-phase 1-hexyne hydrogenation was studied using monodispersed nonsupported Pd nanoparticles of 6, 8, 11, 13, and 14 nm diameter. The particles were prepared via a reverse microemulsion water/AOT/isooctane. The size was ...

2007

Ionic liquid synthesis in a microstructured reactor for process intensification

Lioubov Kiwi, Albert Renken

Ionic liquids (IL) are the focus of growing interest over the last few years due to their low vapour pressure being beneficial for replacing common organic solvents with high vapour pressure. IL synthesised via alkylation are produced in batch or semi-batc ...

2007

Improved performance of non-thermal plasma reactor during decomposition of trichloroethylene: Optimization of the reactor geometry and introduction of catalytic electrode

Lioubov Kiwi, Albert Renken

The decomposition of trichloroethylene ITCE) by non-thermal plasma was investigated in a dielectric barrier discharge (DBD) reactor with a copper rod inner electrode and compared with a plasma-catalytic reactor. The particularity of the plasma-catalytic re ...

2007

Monodispersed Pd-nanoparticles on carbon fiber fabrics as structured catalyst for selective hydrogenation

Lioubov Kiwi, Albert Renken

Monodispersed Pd-nanoparticles (similar to 8nm) prepared via a modified microemulsion method were deposited on active carbon fibers (ACF) fabrics and studied in a semi-batch 1-hexyne liquid-phase hydrogenation. The catalyst Pd(0.45 wt%)/ACF demonstrated > ...

Elsevier2007

Highly dispersed PTFE/Co3O4 flexible films as photocatalyst showing fast kinetic performance for the discoloration of azo-dyes under solar irradiation

Michaël Bensimon, Juan Kiwi, Lioubov Kiwi, Albert Renken, Danièle Laub

Small nanosized clusters of Co3O4 coated on PTFE (polytetrafluoroethylene) flexible film is reported as a novel supported photocatalyst effective in the fast discoloration of the azo-dye Orange II under simulated solar radiation in the presence of oxone (2 ...

2007

Synthesis of monodispersed palladium nanoparticles to study structure sensitivity of solvent-free selective hydrogenation of 2-methyl-3-butyn-2-ol

Lioubov Kiwi, Albert Renken, Danièle Laub

A novel method for isolation of monodispersed Pd nanoparticles from a reverse microemulsion was developed using hydrocarbon evaporation and methanol-assisted particle purification from a surfactant. Fcc Pd nanoparticles of 6, 8, 11, and 13 nm in diameter w ...

2007

Novel Catalytic Dielectric Barrier Discharge Reactor for Gas-Phase Abatement of Isopropanol

Lioubov Kiwi, Albert Renken

Catalytic gas-phase abatement of air containing 250 ppm of isopropanol (IPA) was carried out with a novel dielectric barrier discharge (DBD) reactor with the inner catalytic electrode made of sintered metal fibers (SMF). The optimization of the reactor per ...

2007

Erratum to “Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE). Photocatalytic applications"

Philippe Buffat, Juan Kiwi, Lioubov Kiwi, Andrzej Kulik, Albert Renken, Danièle Laub, Kyumin Lee

2007

Compact string reactor for authotermal hydrogen production

Lioubov Kiwi, Albert Renken, Chrystèle Horny

This study addresses the development of a compact reactor for oxidative steam-reforming of methanol (OSRM) to produce hydrogen in autothermal mode for fuel cells. The string reactor uses catalytically active brass wires with a diameter of 500 mu m placed i ...

2007

Nonthermal plasma Abatement of trichloroethylene Enhanced by Photocatalysis

Lioubov Kiwi, Albert Renken, Danièle Laub

Abatement of trichloroethylene (TCE, 250 ppm in air) was studied in a novel nonthermal plasma (NTP) dielectric barrier discharge reactor with an inner electrode made of sintered metal fibers (SMF). The SMF electrodes modified with TiO2 and MnO2 were observ ...

2007

Structured fixed-bed adsorber based on zeolite/sintered metal fibre for low concentration VOC removal

Lioubov Kiwi, Albert Renken, Kim Martin Nikolajsen

A novel adsorber with a structured fixed-bed made of sintered metal fibres (SMF) plates has been developed for purification of low-content VOCs gas-streams. The surface of the metal fibres was coated by a thin, homogeneous MFI-type (ZSM-5, Silicalite-1) ze ...

2006

Stabilization mechanism of TiO2 on flexible fluorocarbon films as a functional photocatalyst

Juan Kiwi, Lioubov Kiwi, Albert Renken, Danièle Laub

The repetitive discoloration kinetics of the azo-dye Methyl Orange (taken as a model organic compound) was followed under solar simulated radiation (90 mW/cm2) to assess the performance of the TiO2/Tedlar® composite photocatalyst. The influence of solution ...

2006

Catalytic abatement of volatile organic compounds assisted by non-thermal plasma - Part 1. A novel dielectric barrier discharge reactor containing catalytic electrode

Lioubov Kiwi, Albert Renken

A novel catalytic reactor with dielectric barrier discharge (DBD) at atmospheric pressure was developed for the abatement of volatile organic compounds (VOCs). The novelty of DBD reactor is the metallic catalyst serving also as the inner electrode. The cat ...

2006

Role of adsorbed NO in N2O decomposition over iron containing ZSM-5 catalysts at low temperatures

Lioubov Kiwi, Albert Renken

Transient response and temperature-programmed desorption/reaction (TPD/TPR) methods were used to study the formation of adsorbed NOx from N2O and its effect during N2O decomposition to O2 and N2 over FeZSM-5 catalysts at temperatures below 653 K. The react ...

2006

Catalytic abatement of volatile organic compounds assisted by non-thermal plasma - Part II. Optimized catalytic electrode and operating conditions

Lioubov Kiwi, Albert Renken

Catalytic purification of air containing 250 ppm of toluene assisted by non-thermal plasma was carried out with a novel dielectric barrier discharge (DBD) reactor with an inner electrode made of sintered metal fibers (SMF). The optimization of the reactor ...

2006

Formation of the surface NO during N2O interaction at low temperature with iron-containing ZSM-5

Lioubov Kiwi, Albert Renken

Interaction of N2O at low temps. (473-603 K) with Fe-ZSM-5 zeolites (Fe, 0.01-2.1 wt%) activated by steaming and/or thermal treatment in He at 1323 K was studied by the transient response method and temp.-programmed desorption (TPD). Diffuse reflectance IR ...

2006

Page 2 sur 3