Thomas L Meyer

US Patent:

8029652, Oct 4, 2011

Filed:

Nov 28, 2006

Appl. No.:

11/605672

Inventors:

Thomas J. Meyer - Chapel Hill NC, US
Milan Sykora - Los Alamos NM, US
Victor I. Klimov - Los Alamos NM, US

Assignee:

Los Alamos National Security, LLC - Los Alamos NM

International Classification:

H01L 31/0264
C25B 9/06

US Classification:

204242, 136258, 136264, 136265

Abstract:

Photocatalytic materials based on coupling of semiconductor nanocrystalline quantum dots (NQD) and molecular catalysts. These materials have capability to drive or catalyze non-spontaneous chemical reactions in the presence of visible radiation, ultraviolet radiation, or both. The NQD functions in these materials as a light absorber and charge generator. Following light absorption, the NQD activates a molecular catalyst adsorbed on the surface of the NQD via transfer of one or more charges (either electrons or electron-holes) from the NQD to the molecular catalyst. The activated molecular catalyst can then drive a chemical reaction. A photoelectrolytic device that includes such photocatalytic materials is also described.

US Patent:

8524903, Sep 3, 2013

Filed:

Aug 24, 2010

Appl. No.:

12/862538

Inventors:

Javier Jesus Concepcion Corbea - Chapel Hill NC, US
Zuofeng Chen - Chapel Hill NC, US
Jonah Wesley Jurss - Chapel Hill NC, US
Joseph L. Templeton - Chapel Hill NC, US
Paul Hoertz - Morrisville NC, US
Thomas J. Meyer - Chapel Hill NC, US

Assignee:

The University of North Carolina at Chapel Hill - Chapel Hill NC

International Classification:

C07F 15/00
C25B 11/04

US Classification:

546 2, 204292, 205631, 205639

Abstract:

The present invention provides ruthenium or osmium complexes and their uses as a catalyst for catalytic water oxidation. Another aspect of the invention provides an electrode and photo-electrochemical cells for electrolysis of water molecules.

US Patent:

20130020113, Jan 24, 2013

Filed:

Jan 21, 2011

Appl. No.:

13/575422

Inventors:

Javier Jesus Concepcion Corbea - Chapel Hill NC, US
Jonah Wesley Jurss - Berkeley CA, US
Paul Hoertz - Morrisville NC, US
Thomas J. Meyer - Chapel Hill NC, US

International Classification:

H05K 1/09
B82Y 99/00

US Classification:

174257, 977773, 977932

Abstract:

The present invention provides an electrode which comprises (a) a supporting substrate, and (b) nanoparticle composition comprising optically transparent conductive nanoparticles. In one embodiment, the nanoparticles are selected from tin-doped indium oxide (ITO), fluorine doped tin oxide (FTO), antimony tin oxide (ATO), gallium zinc oxide (GZO), indium zinc oxide (IZO), copper aluminum oxide, fluorine-doped zinc oxide and aluminum zinc oxide (AZO) nanoparticles and combinations thereof. In one embodiment, the electrode further comprises a transition metal catalyst, and the catalyst is absorbed to the surface of the nanoparticles. Another aspect of the invention relates to methods for preparing the electrode described herein which comprises the step of (1) preparing a suspension of nanoparticles; (2) applying the suspension of the nanoparticles to a support substrate; and (3) annealing the supporting substrate with the nanoparticle for a period of time and at a temperature sufficient to produce nanoparticle film on the electrode.

US Patent:

20140034505, Feb 6, 2014

Filed:

Aug 5, 2013

Appl. No.:

13/958843

Inventors:

Javier Jesus Concepcion Corbea - Upton NY, US
Zuofeng Chen - Chapel Hill NC, US
Jonah Wesley Jurss - Chapel Hill NC, US
Joseph L. Templeton - Chapel Hill NC, US
Paul Hoertz - Morrisville NC, US
Thomas J. Meyer - Chapel Hill NC, US

Assignee:

The University of North Carolina at Chapel Hill - Chapel Hill NC

International Classification:

C25B 1/04
C25B 3/04

US Classification:

205340, 546 2, 205351

Abstract:

The present invention provides ruthenium or osmium complexes and their uses as a catalyst for catalytic water oxidation. Another aspect of the invention provides an electrode and photo-electrochemical cells for electrolysis of water molecules.

US Patent:

47568070, Jul 12, 1988

Filed:

Oct 14, 1987

Appl. No.:

7/109836

Inventors:

Thomas J. Meyer - Chapel Hill NC
Terrence R. O'Toole - Chapel Hill NC
Lawrence D. Margerum - Los Angeles CA
T. David Westmoreland - San Mateo CA
William J. Vining - Racine WI
Royce W. Murray - Chapel Hill NC
B. Patrick Sullivan - Chapel Hill NC

Assignee:

Gas Research Institute - Chicago IL

International Classification:

C25C 100

US Classification:

204 59R

Abstract:

An electrode that has a film adsorbed to its surface by reductive electropolymerization of (vbpy)Re(CO). sub. 3 Cl (4-vinyl-4'-methyl-2,2'-bipyridine tricarbonylchlororhenium(I)) or its acetonitrile analogue, [(vbpy)Re(CO). sub. 3 (MeCN)]. sup. + (4-vinyl-4'-methyl-2,2'-bipyridine tricarbonylacetonitrile rhenium (I)). The poly(vbpy)Re(CO). sub. 3 Cl or poly[(vbpy)Re(CO). sub. 3 (MeCN)]. sup. + adsorbed onto the electrode, acts as a catalyst for CO. sub. 2 reduction to CO. Stability and the reactivity of the polymer film may be increased by co-reductive electropolymerization of either of the aforesaid Re complexes with [(bpy). sub. 2 Ru(vpy). sub. 2. sup. 2+ (bis(4-vinyl-pyridine)bis(2,2'-bipyridine) ruthenium (II)) (vpy is 4-vinylpyridine). A bilayer film assembly consisting of poly-[(bpy). sub. 2 Ru(vpy). sub. 2 ]. sup.

US Patent:

61905313, Feb 20, 2001

Filed:

Jul 27, 1999

Appl. No.:

9/361712

Inventors:

Thomas J. Meyer - Chapel Hill NC
Poonam M. Narula - Carrboro NC

Assignee:

University of North Carolina - Chapel Hill NC

International Classification:

C02F 1461

US Classification:

205742

Abstract:

Concentration of tritium and/or deuterium that is a contaminant in H. sub. 2 O, followed by separation of the concentrate from the H. sub. 2 O. Employed are certain metal oxo complexes, preferably with a metal from Group VIII. For instance, [Ru. sup. IV (2,2',6',2"-terpyridine)(2,2'-bipyridine)(O)](ClO. sub. 4). sub. 2 is very suitable.

US Patent:

56038208, Feb 18, 1997

Filed:

Jun 7, 1995

Appl. No.:

8/477620

Inventors:

Tadeusz Malinski - Oakland Township MI
David A. Wink - Hagerstown MD
Janet Younathan - Rochester NY
Royce W. Murray - Chapel Hill NC
Melani Sullivan - Rufenach, CH
Thomas J. Meyer - Chapel Hill NC
Danae D. Christodoulou - Frederick MD

Assignee:

The United States of America as represented by the Department of Health
and Human Services - Washington DC
The University of North Carolina at Chapel Hill - Chapel Hill NC

International Classification:

G01N 2726

US Classification:

205781

Abstract:

An electrode sensor which may be used to specifically and quantitatively measure nitric oxide is provided, as well as a method of preparing and using such an electrode sensor to measure nitric oxide concentration in solution. A nitric oxide (NO) microsensor based on catalytic oxidation of NO comprises a thermally-sharpened carbon fiber with a tip diameter of about 0. 5-0. 7. mu. m coated with several layers of p-type semiconducting polymeric porphyrin and cationic exchanger deposited thereon. The microsensor, which can be operated in either the amperometric, voltammetric or coulometric mode utilizing a two or three electrode system, is characterized by a linear response up to about 300. mu. M, a response time better than 10 msec and a detection limit of about 10 nM. The sensor of the present invention also discriminates against nitrite, the most problematic interferant in NO measurements.

US Patent:

47117087, Dec 8, 1987

Filed:

Oct 9, 1986

Appl. No.:

6/917383

Inventors:

Thomas J. Meyer - Chapel Hill NC
Terrence R. O'Toole - Chapel Hill NC
Lawrence D. Margerum - Los Angeles CA
T. David Westmoreland - San Mateo CA
William J. Vining - Racine WI
Royce W. Murray - Chapel Hill NC
B. Patrick Sullivan - Chapel Hill NC

Assignee:

Gas Research Institute - Chicago IL

International Classification:

B01D 5702
C25B 700

US Classification:

204280

Abstract:

An electrode that has a film adsorbed to its surface by reductive electropolymerization of (vbpy)Re(CO). sub. 3 Cl (4-vinyl-4'-methyl-2,2'-bipyridine tricarbonylchlororhenium(I)) or its acetonitrile analogue, [(vbpy)Re(CO). sub. 3 (MeCN)]. sup. + (4-vinyl-4'-methyl-2,2'-bipyridine tricarbonylacetonitrile rhenium (I)). The poly (vbpy)Re(CO). sub. 3 Cl or poly-[(vbpy)Re(CO). sub. 3 (MeCN)]. sup. + adsorbed onto the electrode, acts as a catalyst for CO. sub. 2 reduction to CO. Stability and the reactivity of the polymer film may be increased by co-reductive electropolymeriaztion of either of the aforesaid Re complexes with [(bpy). sub. 2 Ru(vpy). sub. 2. sup. 2+ ](bis(4-vinyl-pyridine)bis(2,2'-bipyridine) ruthenium (II)) (vpy is 4-vinylpyridine). A bilayer film assembly consisting of poly-[(bpy). sub. 2 Ru(vpy). sub. 2 ]. sup.