Renxuan Liu from 1146 S Plymouth Ct, Chicago, IL 60605, age 54, Phone: 3125831366

Method Of Screening Compositions For Electrocatalytic Activity In A Gas Diffusion Electrode
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US Patent:

6913849, Jul 5, 2005
Filed:

Jul 5, 2001
Appl. No.:

09/899767
Inventors:

Thomas E. Mallouk - State College PA, US
Eugene S. Smotkin - Chicago IL, US
Benny C. Chan - State College PA, US
Guoying Chen - State College PA, US
Renxuan Liu - Chicago IL, US
Assignee:

UOP LLC - Des Plaines IL
International Classification:

H10M008/10
C12M001/34
US Classification:

429 30, 429 12, 429 32, 429 40, 204410, 20440303, 204422, 204424, 435 4, 4352871, 4352878
Abstract:

A novel process and apparatus to combinatorially screen a large number of discrete compositions for electrocatalytic activity have been developed. The apparatus contains a cell body adjacent to a fluid permeable catalyst array support supporting multiple solids. A catalyst mask having holes that are in alignment with the multiple locations for supporting solids is placed over the catalyst array support, masking the solids. A cell cover is positioned adjacent to the catalyst array support, with the cell cover having a passage for monitoring the solids through the mask. A detector may be in alignment with the passage of the cell cover.

Heat Activated Membrane Introduction Apparatus And Method For Screening Materials
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US Patent:

6923939, Aug 2, 2005
Filed:

Jul 5, 2001
Appl. No.:

09/900843
Inventors:

Amit Nayar - Chicago IL, US
Renxuan Liu - Chicago IL, US
Richard R. Willis - Cary IL, US
Eugene S. Smotkin - Chicago IL, US
Assignee:

UOP LLC - Des Plaines IL
International Classification:

G01N021/00
G01N015/06
G01N033/00
G01N033/48
B01L009/00
US Classification:

422104, 422100, 422101, 422102, 422103, 422 50, 422 55, 422 58, 422 681, 422 81, 422 83, 436 37, 436 43, 436173, 436181
Abstract:

A process and apparatus for rapidly screening materials using, for example, mass spectrometry has been developed. More specifically, an array of materials on a fluid permeable support contained within a reaction cell having a semipermeable membrane can be rapidly screened for characteristics such as catalytic activity, selectivity, and adsorption and desorption properties.

Heat Activated Membrane Introduction Apparatus And Method For Screening Materials
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US Patent:

7229832, Jun 12, 2007
Filed:

Sep 18, 2003
Appl. No.:

10/664730
Inventors:

Amit Nayar - Chicago IL, US
Renxuan Liu - Chicago IL, US
Richard R. Willis - Des Plaines IL, US
Eugene R. Smotkin - Chicago IL, US
Assignee:

UOP LLC - Des Plaines IL
International Classification:

B01L 9/00
G01N 21/00
G01N 15/06
G01N 33/00
G01N 33/48
US Classification:

436 43, 436 37, 436173, 436181, 422 99, 422100, 422101, 422102, 422103, 422104, 422 50, 422 55, 422 58, 422 681, 422 81
Abstract:

A process and apparatus for rapidly screening materials using, for example, mass spectrometry has been developed. More specifically, an array of materials on a fluid permeable support contained within a reaction cell having a semipermeable membrane can be rapidly screened for characteristics such as catalytic activity, selectivity, and adsorption and desorption properties.

Direct Carbon Fueled Solid Oxide Fuel Cell Or High Temperature Battery
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US Patent:

7745026, Jun 29, 2010
Filed:

Sep 20, 2005
Appl. No.:

11/231113
Inventors:

Qinbai Fan - Chicago IL, US
Renxuan Liu - Chicago IL, US
Assignee:

Gas Technology Institute - Des Plaines IL
International Classification:

H01M 12/06
H01M 4/90
H01M 8/10
H01M 4/02
US Classification:

429 15, 429 27, 429 33, 429 50, 429209, 429 49
Abstract:

A direct carbon fuel electrochemical device and method for generating electricity. The apparatus includes a solid oxide electrolyte having an anode side and a cathode side. Carbon and at least one metal oxide are provided to the anode side for reaction at the anode and air is provided to the cathode side. At least a portion of the carbon is oxidized and at least a portion of the metal oxide is reduced to a metal or lower oxide metal oxide on the anode side. The metal or lower oxide metal oxide is electrochemically reoxidized with oxygen in the air, thereby generating electricity.

Cuc1 Thermochemical Cycle For Hydrogen Production
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US Patent:

8088261, Jan 3, 2012
Filed:

May 15, 2007
Appl. No.:

11/803627
Inventors:

Qinbai Fan - Chicago IL, US
Renxuan Liu - Chicago IL, US
Assignee:

Gas Technology Institute - Des Plaines IL
International Classification:

C25C 1/00
C25C 7/00
C25B 9/00
US Classification:

204252, 204283, 204284, 204288, 204415, 204420, 204517, 204520, 204522, 204539, 204630, 204674
Abstract:

An electrochemical cell for producing copper having a dense graphite anode electrode and a dense graphite cathode electrode disposed in a CuCl solution. An anion exchange membrane made of poly(ethylene vinyl alcohol) and polyethylenimine cross-linked with a cross-linking agent selected from the group consisting of acetone, formaldehyde, glyoxal, glutaraldehyde, and mixtures thereof is disposed between the two electrodes.

Multifunctional Filtration And Water Purification Systems
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US Patent:

20080073288, Mar 27, 2008
Filed:

Aug 1, 2007
Appl. No.:

11/888834
Inventors:

Qinbai Fan - Chicago IL, US
Jeremy Chervinko - Streamwood IL, US
Renxuan Liu - Chicago IL, US
International Classification:

C02F 1/46
US Classification:

210748000, 210243000
Abstract:

A water purification system having a porous anode electrode () and a porous cathode electrode (), each of which is made of graphite, at least one metal oxide, and an ion-exchange, cross-linked, polarizable polymer, and optionally comprises microchannels. Disposed between the electrodes is a non-electron conductive, fluid permeable separator element (), whereby wastewater is able to flow from one electrode to the other electrode. The electrodes and separator may be disposed within a housing () having a wastewater inlet opening (), and exhaust waste outlet opening () and a purified water outlet opening (). In this way, components of the system are easily replaced should the need arise.

Corrosion Resistant Molded Graphite Plates For Highly Corrosive Electrochemical Devices
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US Patent:

20100330462, Dec 30, 2010
Filed:

Jun 25, 2009
Appl. No.:

12/491265
Inventors:

Qinbai Fan - Chicago IL, US
Renxuan Liu - Chicago IL, US
Ronald Stanis - Des Plaines IL, US
Assignee:

GAS TECHNOLOGY INSTITUTE - Des Plaines IL
International Classification:

H01M 2/16
C04B 35/00
US Classification:

429530, 264105
Abstract:

A graphite plate for electrochemical devices produced from a mixture of solid thermosetting ether-based epoxy resin particles and graphite particles compression molded at room temperature and heated to a temperature greater than about 200 C.

Single Phase Ternary Pt-Ru-Os Catalysts For Direct Oxidation Fuel Cells
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US Patent:

58560360, Jan 5, 1999
Filed:

Mar 11, 1997
Appl. No.:

8/815102
Inventors:

Eugene S. Smotkin - Chicago IL
Kevin L. Ley - Berkshire, GB
Cong Pu - Farington Hills MI
Renxuan Liu - Chicago IL
Assignee:

Illinois Institute of Technology - Chicago IL
International Classification:

H01M 492
US Classification:

429 40
Abstract:

A catalyst composition for use in electrochemical reactor devices comprising platinum, ruthenium, and osmium and having a single phase crystal structure comprising a face centered cubic unit cell. In accordance with a particularly preferred embodiment, in atomic percentages, platinum comprises about 65% of the catalyst composition, ruthenium comprises about 25% of the catalyst composition, and osmium comprises about 10% of the catalyst composition.