Uday Pal Phones & Addresses
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Marstons Mills, MA
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Framingham, MA
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Malden, MA
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2 Old Meadow Rd, Dover, MA 02030 (508) 785-1937
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Needham, MA
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Monroeville, PA
Work
Position:
Professional/Technical
Education
Degree:
Associate degree or higher
Publications
Us Patents
Hydrogen Separation Using Oxygen Ion-Electron Mixed Conduction Membranes
View pageUS Patent:
7393384, Jul 1, 2008
Filed:
Apr 15, 2003
Appl. No.:
10/511644
Inventors:
Srikanth Gopalan - Westborough MA, US
Uday Pal - Dover MA, US
Uday Pal - Dover MA, US
Assignee:
The Trustees of Boston University - Boston MA
International Classification:
B01D 53/22
B01D 71/02
B01D 71/02
US Classification:
95 55, 95 43, 95 56, 96 7, 96 10, 96 11, 429 17, 4236481, 423650
Abstract:
A process for purification of hydrogen from a stream of synthesis gas or other reformate gases is described. The process, generally conducted at temperatures of approximately 800-1000 C. , involves the use of a cell in which a mixture of reformate gas and steam are flowed on one side of a dense solid state ceramic membrane, while steam is passed on the other side. High purity hydrogen is generated on the steam side. The membrane is similar to one that has in the past been used for oxygen purification and can be single or two phase, for example LaSrGaMgO+Pd.
Process For Solid Oxide Fuel Cell Manufacture
View pageUS Patent:
7485385, Feb 3, 2009
Filed:
Sep 10, 2004
Appl. No.:
10/939116
Inventors:
Gary Orbeck - Windham NH, US
Srikanth Gopalan - Westborough MA, US
Uday Pal - Dover MA, US
Srikanth Gopalan - Westborough MA, US
Uday Pal - Dover MA, US
Assignee:
BTU International, Inc. - North Billerica MA
The Trustees of Boston University - Boston MA
The Trustees of Boston University - Boston MA
International Classification:
H01M 8/10
US Classification:
429 30, 429 40, 429 45
Abstract:
The present invention provides a method for conveniently manufacturing a solid oxide fuel cell (SOFC) at a cost that is less than five-hundred dollars per kilowatt of electricity. The method comprises forming an electrode layer and depositing an electrolyte material on the surface of the electrode. The formed structure is an electrode-electrolyte bi-layer. A second electrode is deposited onto this bi-layer to form a multilayer fuel cell structure comprising an electrolyte positioned between two electrodes. This multilayer structure is then heated and fired in a single thermal cycle to remove any binder materials and sinter, respectively, the fuel cell. This thermal cycle can be performed in a furnace having one or more chambers. The chamber(s) preferably contains a variable or multiple frequency microwave source for heating the cell and removing binder materials in the electrolyte and electrode structures. The chamber(s) also preferably include a convection and/or radiation source for sintering the fuel cell.
Composite Mixed Oxide Ionic And Electronic Conductors For Hydrogen Separation
View pageUS Patent:
7588626, Sep 15, 2009
Filed:
Oct 21, 2005
Appl. No.:
11/255650
Inventors:
Srikanth Gopalan - Westborough MA, US
Uday B. Pal - Dover MA, US
Annamalai Karthikeyan - Quincy MA, US
Uday B. Pal - Dover MA, US
Annamalai Karthikeyan - Quincy MA, US
Assignee:
Trustees of Boston University - Boston MA
International Classification:
B01D 53/22
US Classification:
95 45, 95 54, 95 55, 96 4, 96 10, 96 11, 2525191, 2525201, 2525202, 2525211, 429 17, 429 33, 423650, 423651
Abstract:
A mixed ionic and electronic conducting membrane includes a two-phase solid state ceramic composite, wherein the first phase comprises an oxygen ion conductor and the second phase comprises an n-type electronically conductive oxide, wherein the electronically conductive oxide is stable at an oxygen partial pressure as low as 10atm and has an electronic conductivity of at least 1 S/cm. A hydrogen separation system and related methods using the mixed ionic and electronic conducting membrane are described.
One-Step Consolidation Process For Manufacturing Solid Oxide Fuel Cells
View pageUS Patent:
20040247971, Dec 9, 2004
Filed:
Mar 19, 2004
Appl. No.:
10/805132
Inventors:
Vinod Sarin - Boston MA, US
Uday Pal - Dover MA, US
Uday Pal - Dover MA, US
International Classification:
H01M008/12
B28B003/00
B28B003/00
US Classification:
429/030000, 264/241000
Abstract:
A process is described for manufacturing a solid oxide fuel cell (SOFC) (400) having a cathode (408), anode (404), and an electrolyte (406) via a one-step powder consolidation process using hot or hot iso-static pressing. The one-step process provides for a means for low-cost, high-volume, high-efficiency manufacturing of planar SOFC-dense electrolyte structures that is sandwiched between a porous anode and cathode electrodes. In addition, multiple cells can be simultaneously pressed using a stacked configuration.
Materials System For Intermediate-Temperature Sofc Based On Doped Lanthanum-Gallate Electrolyte
View pageUS Patent:
20070009784, Jan 11, 2007
Filed:
Jun 28, 2006
Appl. No.:
11/476420
Inventors:
Uday Pal - Dover MA, US
Srikanth Gopalan - Westborough MA, US
Wenquan Gong - Boston MA, US
Srikanth Gopalan - Westborough MA, US
Wenquan Gong - Boston MA, US
International Classification:
H01M 4/86
H01M 8/12
H01M 8/12
US Classification:
429045000, 429030000
Abstract:
The invention provides for a stable materials system for intermediate temperature solid oxide fuel cells (SOFC). Without limitation, a solid electrolyte layer can include a Sr-and-Mg doped lanthanum gallate layer, such as LaSrGaMgO, (LSGM), or a bi-layer semiconductor electrolyte (comprising, for example, donor doped SrTiO3 in an n-type first semiconductor layer and LSCF or LSM in a p-type second semiconductor layer); cathode materials can include LaSrMnO(LSM), LaSrCoFeO(LSCF), a two-phase particulate composite consisting of LSM and LSGM (LSM-LSGM), and LSCF-LSGM composite; anode materials can include Ni—CeGdO(Ni-GDC) and Ni—CeLaO(Ni-LDC) composites; and a barrier layer of GDC or LDC can be used between the electrolyte and Ni-composite anode to prevent adverse reaction of the Ni in the anode layer with lanthanum in the electrolyte layer.
Oxygen-Producing Inert Anodes For Som Process
View pageUS Patent:
20090000955, Jan 1, 2009
Filed:
Jul 14, 2006
Appl. No.:
11/994806
Inventors:
Uday B. Pal - Dover MA, US
Assignee:
TRUSTEES OF BOSTON UNIVERSITY - Boston MA
International Classification:
C25C 3/04
C25C 3/00
C25C 3/28
C25C 3/08
C25C 3/12
C25C 3/00
C25C 3/28
C25C 3/08
C25C 3/12
US Classification:
205371, 205397, 205405, 2042431
Abstract:
An electrolysis system for generating a metal and molecular oxygen includes a container for receiving a metal oxide containing a metallic species to be extracted, a cathode positioned to contact a metal oxide housed within the container; an oxygen-ion-conducting membrane positioned to contact a metal oxide housed within the container; an anode in contact with the oxygen-ion-conducting membrane and spaced apart from a metal oxide housed within the container, said anode selected from the group consisting of liquid metal silver, oxygen stable electronic oxides, oxygen stable crucible cermets, and stabilized zirconia composites with oxygen stable electronic oxides.
Protective Oxide Coatings For Sofc Interconnections
View pageUS Patent:
20090035561, Feb 5, 2009
Filed:
Aug 4, 2008
Appl. No.:
12/221561
Inventors:
Srikanth Gopalan - Westborough MA, US
Uday B. Pal - Dover MA, US
Soumendra N. Basu - Westwood MA, US
Wenhua Huang - Malden MA, US
Uday B. Pal - Dover MA, US
Soumendra N. Basu - Westwood MA, US
Wenhua Huang - Malden MA, US
Assignee:
THE TRUSTEES OF BOSTON UNIVERSITY - Boston MA
International Classification:
B32B 5/00
B32B 15/04
C25D 13/00
B32B 15/04
C25D 13/00
US Classification:
428336, 428469, 204471, 204509
Abstract:
A dense and well adhered spinel coating such as CuMnO, when deposited on a stainless steel substrate by electrophoretic deposition, significantly reduces the oxidation rate of the steel compared to the uncoated steel at elevated temperature. The protective oxide spinel coating is useful for preparing solid oxide fuel cell interconnects having long term stability at 800 C.
Waste To Hydrogen Conversion Process And Related Apparatus
View pageUS Patent:
20090071841, Mar 19, 2009
Filed:
Jun 16, 2006
Appl. No.:
11/917894
Inventors:
Uday B. Pal - Dover MA, US
Srikanth Gopalan - Westborough MA, US
Srikanth Gopalan - Westborough MA, US
Assignee:
BOSTON UNIVERSITY - Boston MA
International Classification:
C25B 1/02
C25B 9/14
H01M 8/10
C25B 9/14
H01M 8/10
US Classification:
205638, 204250, 429 30, 429 33
Abstract:
A reversible electrochemical system includes a first electrode comprising liquid silver metal and a second electrode, said first and second electrodes separated by a oxygen ion-conducting solid electrolyte; a conduit for directing a first reactive material across the second electrode; and a conduit for contacting second reactive material with the first liquid silver electrode, wherein the cell is capable of steam electrolysis when the polarity of the electrodes is selected such that the liquid silver is an anode and the cell is capable of electrical energy generation when the polarity of the electrodes is selected such that the liquid silver is a cathode.