Concept

Permanganate de potassium

Publications associées (33)

Monolithic micro-direct methanol fuel cell in PDMS with microfluidic channel-integrated Nafion strip

We demonstrate a monolithic polymer electrolyte membrane fuel cell by integrating a narrow (200 mu m) Nafion strip in a molded polydimethylsiloxane (PDMS) structure. We propose two designs, based on two 200 mu m-wide and two 80 mu m-wide parallel microflui ...

2009

Four new noncentrosymmetric salt-inclusion vanadates: (AX)2Mn(VO3)2 (A/X = Rb/Cl, Cs/Cl, Cs/Br) and (CsCl)2Cu(VO3)2

Wendy Lee Queen

Hybrid solids, made of chem. dissimilar components, have drawn much interest in advanced materials synthesis due to their structural versatility and multifunctional properties. For example, metal-org. frameworks (MOFs) have been extensively explored for th ...

American Chemical Society2008

Does the Surface Matter? Hydrogen-Bonded Chain Formation of an Oxalic Amide Derivative in a Two- and Three-Dimensional Environment

Klaus Kern, Harald Brune, Uta Schlickum, Marta Canas Ventura, Sylvain Clair

We report on a multi-technique investigation of the supramolecular organisation of N,N-diphenyl oxalic amide under differently dimensioned environments, namely three-dimensional (3D) in the bulk crystal, and in two dimensions on the Ag(111) surface as well ...

2008

Oxidative elimination of cyanotoxins: Comparison of ozone, chlorine, chlorine dioxide and permanganate

Urs von Gunten, Eva Maria Rodriguez Franco

As the World Health Organization (WHO) progresses with provisional Drinking Water Guidelines of 1 mu g/L for microcystin-LR and a proposed Guideline of 1 mu g/L for cylindrospermopsin, efficient treatment strategies are needed to prevent cyanotoxins such a ...

2007

Ammonium Chloride Promoted Ugi Four-Component, Five-Center Reaction of alpha -Substituted alpha -Isocyano Acetic Acid: A Strong Solvent Effect

Jieping Zhu

Conditions have been developed for the multicomponent synthesis of di- and tetrapeptide based on the unique reactivity of alpha -isocyanoacetic acids (including its alpha -substituted derivs.) by an Ugi four-component, five-center reaction. Simply mixing a ...

2004

Electrochemical cleavage of 1,2-diphenylethanes at boron-doped diamond electrodes

Christos Comninellis

Carbon-carbon bond cleavage of 1,2-diphenyl-ethanes in CH3OH-H2SO4-H2O electrolyte on a boron-doped diamond (BDD) electrode has been investigated electrode using 1,2-di-(p-tert-butylphenyl)-ethane and 1,2-dimethoxy-1,2-di-(p-tert-butylphenyl)-ethane as mod ...

2004

Transient kinetics and in situ spectroscopic techniques for the characterisation of V/Ti-oxide catalysts in toluene partial oxidation

Fabio Rainone

Development of selective oxidation catalysts is a major concern of modern chemical industry. Among several systems, VTi-oxide based catalysts showed the most promising and versatile, able to catalyse key reactions like oxidation of o-xylene to phtalic anhy ...

EPFL2004

Inhibition of bacterial adhesion on PVC endotracheal tubes by RF-oxygen glow discharge, sodium hydroxide and silver nitrate treatments

Christoph Hollenstein, Karine Triandafillu

Medical-grade poly(vinyl chloride) (PVC) was chemically modified to study how the incorporation of monovalent silver influences Pseudomonas aeruginosa adhesion and colonization. The modification investigated consisted of a radio frequency-oxygen (RF-O-2) g ...

2004

Rapid and diverse route to natural product-like biaryl ether containing macrocycles

Jieping Zhu

A two-step sequence involving an Ugi four-component reaction and an intramol. nucleophilic arom. substitution (SNAr) has been developed for the rapid access to biaryl-ether contg. macrocycles. For example, reacting heptanal with butylamine, (3-hydroxypheny ...

2003

Gasification reactivity of charcoal with CO2. Part II: Metal catalysis as a function of conversion

Rudolf Paul Wilhelm Jozef Struis

The catalytic influence of major metal species found with waste wood (Na, K, Ca, Mg, Zn, Pb, Cu) was studied during the gasification of nitrate salt impregnated charcoal with CO2 at 800degreesC in the kinetically controlled regime. In contrast with literat ...

Elsevier2002

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