Thomas Damian 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:

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:

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.

US Patent:

20170309840, Oct 26, 2017

Filed:

Nov 6, 2015

Appl. No.:

15/517233

Inventors:

- Chapel Hill NC, US
Benjamin D. Sherman - Chapel Hill NC, US
M. Kyle Brennaman - Durham NC, US
Thomas J. Meyer - Chapel Hill NC, US

Assignee:

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

International Classification:

H01L 51/00
H01G 9/20
H01G 9/20
C25B 11/04
C25B 1/00
H01L 51/00
C01B 3/04

Abstract:

Electrodes useful in dye sensitized photoelectrosynthesis cells provide a coreshell nanoparticle having a chromophore and a catalyst, or a chromophore-catalyst assembly, linked to the shell material. Optionally, an overlayer stabilizes the chromophore or chromophore-catalyst assembly on the shell material. In some embodiments, the core material comprises tin oxide; the shell material comprises titanium dioxide; the chromophore-catalyst assembly includes [(POH)bpy)Ru(4-Mebpy-4′-bimpy)Ru(tpy) (OH)], and the overlayer comprises aluminum oxide or titanium dioxide.

US Patent:

20160097136, Apr 7, 2016

Filed:

Jan 12, 2015

Appl. No.:

14/594269

Inventors:

- Chapel Hill NC, US
Peng Kang - Durham NC, US
Thomas J. Meyer - Chapel Hill NC, US

Assignee:

THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL - Chapel Hill NC

International Classification:

C25B 11/04
C25B 11/12
C25B 1/22

Abstract:

High surface area tin oxide nanoparticles prepared by a facile hydrothermal method followed by electroreduction to tin act as electrocatalysts toward COreduction to formate, in some embodiments. At certain of these nano-structured tin catalysts, COreduction occurs selectively to formate at low overpotentials and with high Faradaic efficiencies, with high stability and significant current densities.