Method for producing a noble metal-free catalyst, a noble metal-free catalyst, a fuel cell and a motor vehicle
A method for producing a noble metal-free catalyst comprises providing a catalyst support comprising organic heterocycles as catalyst, and applying an oxidation-inhibiting protective layer. Embodiments further relate to a noble metal-free catalyst, a fuel cell, and a motor vehicle.
1. A method for producing a catalyst free of noble metal, comprising;
providing a catalyst support comprising organic heterocycles; and
applying an oxidation-inhibiting protective layer to the catalyst support, wherein the protective layer is formed of a material selected from a group consisting of Al 2 O 3 , TiO 2 , and SnO 2 , and wherein the protective layer is applied with atomic layer deposition.
2. The method according to claim 1 , wherein the protective layer is applied with a layer thickness between 1 nm and 50 nm.
3. The method according to claim 1 , wherein the catalyst support is formed by a carbon support which is stabilized before application of the catalyst.
4. The method according to claim 3 , wherein stabilization is carried out by graphitization and/or by coating with Al 2 O 3 , TiO 2 or SnO 2 .