Jerry G Rogers

US Patent:

6680279, Jan 20, 2004

Filed:

Jan 24, 2002

Appl. No.:

10/056381

Inventors:

Mei Cai - Bloomfield Hills MI
Lee Lizhong Feng - Troy MI
Martin S. Ruthkosky - Sterling Heights MI
Jerry Dale Rogers - Rochester Hills MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

B01J 2340

US Classification:

502327, 502329, 502331, 502332, 502333, 502334, 502339, 502342, 502346, 502355, 502415, 502439, 502303, 502304

Abstract:

A method of dispersing nanosized catalyst particles on the surface of larger catalyst carrier particles is disclosed. The coating process is done dry and yields high effective surface area of nanosized catalyst particles coated on the surface of catalyst carrier particles. In this process, nanosized catalyst particles and catalyst carriers are mechanically mixed in a high velocity and impact force environment to which catalyst particles are embedded, or filmed, on the surface of catalyst carrier particles without using water or any other additional chemicals. The catalyst composite structure produced comprises better coating uniformity of the catalyst particle on its catalyst carrier. The catalyst particle/catalyst carrier composite produced can be applied to a support structure, such as a monolith as readily used in automotive or other applications.

US Patent:

6956007, Oct 18, 2005

Filed:

Aug 25, 2003

Appl. No.:

10/647403

Inventors:

Mei Cai - Bloomfield Hills MI, US
Lee Lizhong Feng - Troy MI, US
Martin S. Ruthkosky - Sterling Heights MI, US
Jerry Dale Rogers - Rochester Hills MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

B01J029/06

US Classification:

502303, 502304, 502325, 502332, 502333, 502339, 502334, 502349, 502355

Abstract:

The present invention provides a method of making a noble metal catalyst, where the noble metal is distributed on the surface of special composite carrier particles. Nanometer sized oxide particles are first dry coated by an impact mixing process on the surface of larger alumina particles. In general, this dry coating process coats the nanometer sized particles on the surface of the alumina particles. A suitable solution of noble metal(s) compound is then soaked on the surface of the composite carrier particles. Ultimately, the noble metal compound is decomposed by calcining and noble metal particles dispersed with large effective surface area on the composite carrier particles. The resultant catalyst structure improves catalyst performance while making efficient and effective use of the expensive noble metal.

US Patent:

6992039, Jan 31, 2006

Filed:

Mar 13, 2003

Appl. No.:

10/388241

Inventors:

Long Jiang - Beijing, CN
Jinru Li - Beijing, CN
Mei Cai - Bloomfield Hills MI, US
Jerry Dale Rogers - Rochester Hills MI, US

Assignee:

General Motors Corporation - Detroit MI
Chinese Academy of Sciences - Beijing

International Classification:

B01J 21/08
B01J 21/12
B01J 21/14
B01J 23/00
B01J 20/00

US Classification:

502327, 502243, 502244, 502258, 502259, 502260, 502261, 502262, 502325, 502326, 502330, 502331, 502332, 502333, 502334, 502335, 502337, 502339, 502344, 502345, 502346, 502347, 502348, 502355, 502415, 502439

Abstract:

A method for uniformly dispersing noble metal particles on a porous carrier by first mixing an alkoxide product of aluminum or silicon and a noble metal precursor together; then mixing a surfactant into the mixture; then mixing ammonia solution into the mixture to form a hydroxide of aluminum or silicon; then mixing a reducing agent into the mixture to convert the noble metal precursor into noble metal nanoparticles dispersed on the hydroxide; then separating the noble metal nanoparticles and the hydroxide from the mixture before calcining the hydroxide into an oxide of aluminum or silicon.

US Patent:

7470647, Dec 30, 2008

Filed:

Mar 1, 2005

Appl. No.:

11/069324

Inventors:

Mei Cai - Bloomfield Hills MI, US
Yong Li - Liaoning, CN
Wenjie Shen - Liaoning, CN
Jerry Dale Rogers - Rochester Hills MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI
Dalian Institute of Chemical Physics, Chinese Academy of Sciences - Dalian

International Classification:

B01J 37/03
B01J 37/08
B01J 23/755
C01G 1/02
C01G 53/04
C01B 3/26
B82B 3/00

US Classification:

502337, 423138, 423139, 423140, 423142, 423143, 423144, 423145, 423146, 423147, 42359419, 423653, 977895, 977896, 977902, 977903

Abstract:

Decomposition of methane to produce carbon monoxide-free hydrogen is accomplished using un-supported, nanometer sized, hydrogen reduced, nickel oxide particles made by a precipitation process. A nickel compound, such as NiClor Ni(NO) is dissolved in water and suitably precipitated as nickel hydroxide. The precipitate is separated, dried and calcined to form the NiO catalyst precursor particles.

US Patent:

7601199, Oct 13, 2009

Filed:

Jan 19, 2006

Appl. No.:

11/335211

Inventors:

Wenjie Shen - Liaoning, CN
Yong Li - Liaoning, CN
Mei Cai - Bloomfield Hills MI, US
Jerry D. Rogers - Rochester Hills MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI
Dalian Institute of Chemical Physics, Chinese Academy of Sciences - Dalian

International Classification:

B22F 9/16
C01G 53/04

US Classification:

75365, 75374, 42359419

Abstract:

Glycerol is used as a solvent medium for the precipitation of a complex of nickel and glycerol material. The precipitate is separated from the liquid solvent and dried and calcined in air to produce small (nanometer size) particles characterized by a nickel core encased in a nickel oxide shell. The proportions of nickel core and nickel oxide shell can be controlled by management of the time and temperature of heating in air. Prolonged heating in air can produce nickel oxide particles, or calcining of the precipitate in nitrogen produces nickel particles.

US Patent:

7700068, Apr 20, 2010

Filed:

Jul 19, 2006

Appl. No.:

11/488956

Inventors:

Wenjie Shen - Liaoning, CN
Yong Li - Liaoning, CN
Mei Cai - Bloomfield Hills MI, US
Jerry D. Rogers - Rochester Hills MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI
Dalian Institute of Chemical Physica, Chinese Academy of Sciences - Dalian, Liaoning

International Classification:

C01G 53/04
C22B 23/02

US Classification:

42359419, 75629

Abstract:

The alpha form of nickel (II) hydroxide is formed by dissolving a compound of nickel (II), such as nickel acetate, in a water miscible dihydric alcohol (diol), such as ethylene glycol, propylene glycol and suitable oligomers, and adding a suitable base such as sodium carbonate. The α-Ni(OH)precipitate is separated from the diol-based mother liquor and dried. This stable α-Ni(OH)can be calcined at temperatures in the range of about 573K to about 1073K to form nanometer-size particles of NiO having, for example, fibrous shapes. And the small particles of NiO can be reduced with hydrogen to form small, fibrous nickel particles. Both the NiO particles and Ni particles have utility as catalysts and offer utility in applications requiring electronic and/or magnetic properties.