Title:
浸出微結晶材料、その製造方法、及びエネルギー分野におけるその使用方法
Document Type and Number:
Japanese Patent JP4490510
Kind Code:
B2
Abstract:
Leached nanocrystalline materials having a high specific surface are particularly useful for storing hydrogen or as catalysts or electrocatalysts in the manufacture electrodes, especially for fuel cells. Such materials can be manufactured by preparing a nanocrystalline material consisting of a metastable composite or alloy of at least two different chemical elements. To be nanocrystalline, this material must have a crystalline structure with the grain size lower than 100 nm. Then, the so prepared nanocrystalline material can be subjected to a leaching treatment in order to eliminate partially or totally one of the elements of the composite or alloy. This leaching results in nanocrystalline materials having a porous structure and, thereby, the requested high specific surface.
More Like This:
Inventors:
Schulz, Robert
Lalande, Guy
Woo, Jack
Dennis, Marie-Chatal
Liang, Goshan
Van Neste, Andre
Gua, Daniel
Dodelet, Jean-Paul
Lalande, Guy
Woo, Jack
Dennis, Marie-Chatal
Liang, Goshan
Van Neste, Andre
Gua, Daniel
Dodelet, Jean-Paul
Application Number:
JP53144498A
Publication Date:
June 30, 2010
Filing Date:
January 21, 1998
Export Citation:
Assignee:
HYDRO-QUEBEC
International Classes:
B01J32/00; B01J25/00; B22F9/20; B01J37/00; B01J37/06; B22F1/054; B22F5/00; B22F9/16; C01B3/00; C22B3/04; C22C1/08; H01M4/90; H01M4/92; H01M8/06
Domestic Patent References:
| JP969362A | ||||
| JP7268403A | ||||
| JP8157902A |
Foreign References:
| EP0750359A2 |
Attorney, Agent or Firm:
Hideo Takino