Boston University

Saint-gobain Ceramics & Plastics, Inc.

Btu International, Inc.

Infinium, Inc.

Srikanth Gopalan

Uday B Pal

Gary A Orbeck

Adam Clayton Powell, Iv

Donald A Seccombe, Jr

Soobhankar Pati

Stephen Joseph Derezinski

Deniz Cetin

Soumendra Basu

Sophie Marie Claire Poizeau

Garrett Lau

Paul Gasper

Xiaofei Guan

Yanchen Lu

Annamalai Karthikeyan

Cui Hengdong

Adam Clayton Powell

An electrode can include a functional layer having an LnMOphase, where Ln is at least one lanthanide optionally doped with a metal and M is at least one 3d transition metal, and a heavily-doped ceria phase. In an embodiment, the ceria phase can be present in the functional layer in an amount of at least 40 vol % based on a total volume of the functional layer absent any porosity. An electrochemical device or a sensor device can include the electrode.

Electrode comprising heavily-doped ceria

A method of preparing a metal nanoparticle on a surface includes subjecting a metal source to a temperature and a pressure in a carrier gas selected to provide a vapor metal species at a vapor pressure in the range of about 10to about 10atm; contacting the vapor metal species with a heated substrate; and depositing the metal as a nanoparticle on the substrate.

Nanoparticle deposition in porous and on planar substrates

System and method for energy storage and recovery is described. More particularly, system and method using tungsten based materials to electrochemically store and recover energy is described. In certain embodiments, the system includes a reversible solid oxide electrochemical cell (RSOEC) having a porous cathode, a porous anode, and an electrolyte capable of transporting oxygen ion. The system further includes a reactor comprising tungsten, tungsten oxide, or combinations thereof. To store the energy, the RSOEC is capable of receiving electricity to electrolyze HO to generate Hand Oand the reactor is operably connected to the RSOEC to receive the generated H2 and convert tungsten oxide to tungsten thereby storing electrical energy. To recover the energy, reactor is capable of receiving HO to convert tungsten to tungsten oxide and generate Hand the RSOEC is operably connected to the reactor to receive the generated Hand generate electrical energy.

System and method for energy storage and recovery

In one aspect, the present invention is directed to apparatuses for and methods of conducting electrical current in an oxygen and liquid metal environment. In another aspect, the invention relates to methods for production of metals from their oxides comprising providing a cathode in electrical contact with a molten electrolyte, providing a liquid metal anode separated from the cathode and the molten electrolyte by a solid oxygen ion conducting membrane, providing a current collector at the anode, and establishing a potential between the cathode and the anode.

Conductor of high electrical current at high temperature in oxygen and liquid metal environment

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.

Waste to hydrogen conversion process and related apparatus

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.

Composite mixed oxide ionic and electronic conductors for hydrogen separation

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. In addition, the method of the invention harmonizes and minimizes the deviation among the thermophysical properties of the electrolyte and electrode structures. This harmonization reduces and minimizes the temperature gradient within the cell such that the structure can be uniformly heated and fired during the thermal cycle. The multilayer structure is also unlikely to distort and fracture by minimizing the temperature gradient in the cell. An SOFC can also be manufactured by the present method in an order of magnitude less time than standard processes.

Process for solid oxide fuel cell manufacture

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&#xb0; 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.

Growing community of inventors

Westborough, MA, United States of America

Srikanth Gopalan