About 28 results
https://drivepatents.com/patents/1092453 · 22 Oct 2003
Filter for removing particulates from diesel engine exhaust gas has a catalytic coating comprising barium and magnesium compounds and a platinum-group metal to accelerate combustion of trapped particulates during a regeneration phase. An Independent claim ...
https://drivepatents.com/patents/1093512 · 3 Sep 2003
The fuel cell stack consists of one or more PEM (polymer electrolyte membrane) fuel cells (1) incorporating gas diffusion electrodes which are formed by the reaction and gas distribution layers (6, 7; 8, 9), and are compressed so that their thickness lies ...
https://drivepatents.com/patents/1093556 · 3 Sep 2003
The method for producing, for fuel cells, a polymer electrolyte membrane in the form of a tape coated on both sides with a catalyst involves use of a membrane with a support foil on its rear side, application (with use of a catalyst ink) of an electrode la...
https://drivepatents.com/patents/1095583 · 4 Jun 2003
The present invention is directed to a method and device for operating an engine (1) of a motor vehicle. Firstly, driving condition parameters of the engine (1) and/or the motor vehicle are captured over a predetermined period of time. After that the proba...
https://drivepatents.com/patents/1096356 · 2 May 2003
A sulfur containing hydrocarbons and steam is mixed to form a reformate which is passed over a sulfur absorber. The carbon monoxide content in the reformate is reduced. The sulfur components absorbed optionally by the catalysts are desorbed by increasing t...
https://drivepatents.com/patents/1098416 · 12 Feb 2003
Platinum or platinum alloy powder for use as a catalyst in fuel cells or chemical reactions combines a BET specific surface area above 40m/g with a chlorine content below 100ppm. An Independent claim is also included for the production of the powder involv...
https://drivepatents.com/patents/1099703 · 18 Dec 2002
Solutions of hexachloroplatinic acid and ruthenium chloride are added to a support material suspension. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate sparingly soluble noble metal compounds. Organic carboxylic ac...
https://drivepatents.com/patents/1100145 · 27 Nov 2002
In a process to make a membrane- electrode unit, separate first and second gas distributor layers incorporate hydrophobic carbon- based substrates. The substrates have selected inks containing a catalyst, dissolved ionomer and solvent. The first gas distri...
https://drivepatents.com/patents/1100130 · 27 Nov 2002
The invention comprises a process for making a membrane electrode assembly comprising a polymer electrolyte membrane having two opposite faces, on each face of which is applied a catalyst layer and a gas distribution layer. The two gas distribution layers ...
https://drivepatents.com/patents/1100100 · 27 Nov 2002
The invention provides a process for preparing a platinum-ruthenium catalyst and the catalyst prepared therewith. The catalyst can be supported on a support material in powder form or may also be unsupported. To prepare the supported catalyst, the support ...