Method for forming metal oxide coating layer on catalyst substrate, catalyst substrate including metal oxide coating layer and catalyst apparatus
AssigneeKorea Institute of Energy Research
InventorsKee Young Koo, Wang Lai Yoon, Un Ho Jung, Hyun Ji Eom, Soon Chul Kwon
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Abstract
An embodiment of the present invention provides a method for forming a metal oxide coating layer on a catalyst support, which comprises a precipitation step for forming a metal-containing precipitate on the catalyst support by contacting the catalyst support with a mixed solution containing a metal oxide precursor and a precipitant, and a calcination step for calcinating the metal-containing precipitate produced on the catalyst support to produce the metal oxide coating layer on the catalyst support.
Claims15
A method for forming a metal oxide coating layer on a catalyst support, the method comprising the steps of:
- performing a treatment on the catalyst support to produce an amorphous metal oxide layer including aluminum on the catalyst support, treatment consisting of performing electrochemical surface treatment on the catalyst support or heat treatment on the catalyst support;
- precipitating a metal-containing precipitate on the treated catalyst support by contacting the treated catalyst support with a mixed solution containing a metal oxide precursor including aluminum and a precipitant;
- and
- calcinating the metal-containing precipitate formed on the treated catalyst support to form a metal oxide coating layer of alumina on the catalyst support,
- wherein the method excludes washcoating, and
- wherein the metal oxide coating layer of alumina is formed in a structure in which a plurality of round or needle-shaped particles is packed together.
A method for forming a metal oxide coating layer on a catalyst support, the method comprising the steps of:
- performing a treatment on the catalyst support to produce an amorphous metal oxide layer including aluminum on the catalyst support, the treatment consisting of performing electrochemical surface treatment on the catalyst support or heat treatment on the catalyst support;
- precipitating a metal-containing precipitate on the treated catalyst support by contacting the treated catalyst support with a mixed solution containing a metal oxide precursor including aluminum and a precipitant;
- and
- calcinating the metal-containing precipitate formed on the treated catalyst support to form a metal oxide coating layer of alumina on the catalyst support,
- and
- wherein the metal oxide coating layer of alumina is formed in a structure in which a plurality of round or needle-shaped particles is packed together.
Dependencies are inferred from the claim text.