Abstract: A syngas production method includes introducing oxygen to a reactor which may include a catalyst. The syngas production method includes introducing methane to the reactor, and forming carbon monoxide and hydrogen by partial oxidation of the methane, and where the catalyst may include a barium niobate-based perovskite structure having a chemical formula of Ba1?x(AE)xNb1?(y+z)(AE)yMzO3??, where AE is an alkaline earth (AE) element and M is a metal. M may include a transition metal or a rare earth metal. AE may include Mg, Ca, Sr, or a combination thereof. AE may include K, Rb, Cs, or a combination thereof. M may include Fe, Co, Ni, Y, Yb, W, Ta, Pr, or a combination thereof. M may include Sc, Ti, V, Cr, Mn, Cu, Zn, Zr, Mo, La, Ce, Sm, Gd, W or a combination thereof.

Abstract: A hydrogen production method includes the heating of a catalyst in a furnace under reducing conditions to a first temperature, exposing the catalyst to water at a second temperature, and forming oxygen and hydrogen by thermolysis of the water, where the catalyst may include a barium niobate-based perovskite structure having the chemical formula of Ba1?x(AE)xNb1?(y+z)(AE)yMzO3?? wherein AE is an alkaline earth (AE) element and M is a metal. M may include a transition metal or a rare earth metal. AE may include Mg, Ca, Sr, or a combination thereof. AE may alternatively include K, Rb, Cs or a combination thereof. M may include Fe, Co, Ni, Y, Yb, W, Ta, Pr, or a combination thereof. M may include Sc, Ti, V, Cr, Mn, Cu, Zn, Zr, Mo, La, Ce, Sm, Gd, W or a combination thereof.

Abstract: A device for aqueous electrochemical analysis a sensor is disclosed, which may include a sensing electrode having a thin film surface, a counter electrode coupled to the sensing electrode, and a reference electrode coupled to the sensing electrode and the counter electrode. The device also includes where the thin film surface of the sensing electrode may include a uniaxial texture that is normal to a plane of the thin film surface. A method for aqueous electrochemical analysis is also disclosed, including exposing an aqueous sample to a sensor including a sensing electrode having a thin film surface, where the thin film surface of the sensing electrode may include a uniaxial texture that is normal to a plane of the thin film surface.

Abstract: An ion exchange membrane separated two electrode flow analyzer for continuous aqueous electrochemical heavy metal detection is disclosed. The electrochemical cell includes a gas diffusion counter/reference electrode, a flooded flow through working electrode, and an ion exchange membrane that separates the gas diffusion counter/reference electrode and the flooded flow through working electrode. A method of continuous fluid analysis using a multi-electrode flow analyzer is also disclosed, including passing an aqueous sample through a first inlet flow area and into a working electrode of a multi-electrode flow analyzer, passing a gas mixture through a second inlet flow area and into a counter/reference electrode of the multi-electrode flow analyzer, depositing an analyte onto a surface of the working electrode, stripping the analyte from the surface of the working electrode by sweeping a range of a potential applied to the surface of the working electrode.

Abstract: An electrochemical sensor is disclosed, including an electrode disposed on a first ceramic insulation layer, a porous electrolyte stabilization layer disposed around and on top of the electrode, a conductive ceramic substrate in contact with the first ceramic insulation layer on a first side, a second ceramic insulation layer in contact with the conductive ceramic substrate on a second side, and an integrated heater in contact with the second ceramic insulation layer. A telemetric electrochemical sensor system and a method of sensing gaseous analytes is disclosed, which includes exposing a gaseous mixture sample to a hydrogen separation membrane disposed on top of a porous electrolyte which may include an iron (Fe) doped barium niobate perovskite, establishing a first mixed potential at a first electrode, establishing a second mixed potential at a second electrode, and determining a voltage difference as a sensing parameter to be measured.

Abstract: A solid oxide fuel cell (SOFC) is disclosed, including anode in contact with a fuel source, a first catalyst can include rhodium in contact with an oxidizer source, a cathode in contact with the oxidizer source, and an electrolyte disposed between the anode and the cathode. Implementations of the solid oxide fuel cell (SOFC) can include a reactor where first catalyst is in contact with the oxidizer source or a reactor with a second catalyst in contact with the fuel source. The oxidizer may include nitrous oxide, nitrogen tetraoxide, mixed oxides of nitrogen, or a combination thereof. The fuel may include ammonia, hydrazine, monomethyl hydrazine, symmetric monomethyl hydrazine, or a combination thereof. A method of providing a catalyst to an electrode for a solid oxide fuel cell is also disclosed.

Abstract: A colorimetric radiation detector and a method for detecting radiation is disclosed. The colorimetric radiation detector also includes a metal oxyhalide that reaches an excited state on exposure to x-ray or ultraviolet radiation. The detector also includes a dye or where the metal oxyhalide is a bismuth oxyhalide, such as a bismuth oxychloride. The dye may include a redox reactive dye. The redox reactive dye may include Rhodamine B. The dye undergoes a permanent color change by reacting with the metal oxyhalide when the metal oxyhalide is exposed to x-ray or ultraviolet radiation. The dye may include a fluorescent dye, such as a fluorescein dye, such as 6-carboxy fluorescein or 5-carboxy fluorescein. The solvent may include a Lewis base solvent. The Lewis base solvent may include water or an alcohol. A method for evaluating a photoprotective topical lotion is also disclosed.

Abstract: A reversible electrochemical mirror is disclosed. The reversible electrochemical mirror includes a layer of transparent conducting oxide (TCO), a cation exchange membrane disposed on the layer of TCO, and a mesh layer which may include silver disposed on the cation exchange membrane. The mirror also includes a voltage source connected to the TCO layer and the mesh layer, the voltage source being configured to electrochemically deposit and dissolve silver on the TCO. A method of reversibly controlling reflectance and transmission of a mirror and a method for forming a reversible electrochemical mirror are disclosed.

Abstract: An electrolytic cell and method for synthesizing ammonia by utilizing a lithium selective membrane in the electrolytic cell and providing at least one lithium halogen salt as an electrolyte in the electrochemical process of producing ammonia. The reaction utilizes a hydrogen halide or hydrogen sulfide as a hydrogen oxidant in the process, and allows the regeneration of lithium halide salts that can be recycled back into the cell reaction.

Abstract: A catalyst comprising a barium niobate-based perovskite structure where, Mg and Ca has been used to dope the niobium sites along with one or more of Fe, Ni, Co, Y, Yb, W, Ta, and Pr.

Abstract: An integrated fuel cell and combustion system that integrate both a fuel cell and a combustion system, such that the fuel cell and the combustion system share a a fuel source and an oxidizer source, and the fuel cell and combustion system can be utilized singularly or simultaneously based on the needs for power generation.

Abstract: A catalyst comprising a barium niobate-based cubic perovskite structure where, Mg and Ca has been used to dope the niobium sites along with Fe, Ni, Co, Y, and Pr.

Abstract: An resistive switch having a first platinum layer, an electrolyte layer that is formed by extrusion based additive manufacturing, a silver layer, and a second platinum layer, and methods of manufacturing and using the resistive switch.

Abstract: An ion exchange membrane separated two electrode flow analyzer for continuous aqueous electrochemical heavy metal detection is disclosed. The electrochemical cell includes a gas diffusion counter/reference electrode, a flooded flow through working electrode, and an ion exchange membrane that separates the gas diffusion counter/reference electrode and the flooded flow through working electrode. A method of continuous fluid analysis using a multi-electrode flow analyzer is also disclosed, including passing an aqueous sample through a first inlet flow area and into a working electrode of a multi-electrode flow analyzer, passing a gas mixture through a second inlet flow area and into a counter/reference electrode of the multi-electrode flow analyzer, depositing an analyte onto a surface of the working electrode, stripping the analyte from the surface of the working electrode by sweeping a range of a potential applied to the surface of the working electrode.

Abstract: An electrolytic cell and method for synthesizing ammonia by utilizing a lithium selective membrane in the electrolytic cell and providing at least one lithium halogen salt as an electrolyte in the electrochemical process of producing ammonia. The reaction utilizes a hydrogen halide or hydrogen sulfide as a hydrogen oxidant in the process, and allows the regeneration of lithium halide salts that can be recycled back into the cell reaction.

Abstract: The present invention relates to an electrochemical gas sensor for measuring gas concentrations of chemical species. More particularly, the invention relates to an electrochemical sensor that measures ammonia and total nitrogen oxides.

Abstract: A mixed potential sensor for oxidizable or reducible gases and a method of making. A substrate is provided and two electrodes are formed on a first surface of the substrate, each electrode being formed of a different catalytic material selected to produce a differential voltage between the electrodes from electrochemical reactions of the gases catalyzed by the electrode materials. An electrolytic layer of an electrolyte is formed over the electrodes to cover a first portion of the electrodes from direct exposure to the gases with a second portion of the electrodes uncovered for direct exposure to the gases.

Abstract: A mixed potential electrochemical sensor for the detection of gases has a ceria-based electrolyte with a surface for exposing to the gases to be detected, and with a reference wire electrode and a sensing wire electrode extending through the surface and fixed within the electrolyte as the electrolyte is compressed and sintered. The electrochemical sensor is formed by placing a wire reference electrode and a wire sensing electrode in a die, where each electrode has a first compressed planar section and a second section depending from the first section with the second section of each electrode extending axially within the die. The die is filled with an oxide-electrolyte powder and the powder is pressed within the die with the wire electrodes. The wire-electrodes and the pressed oxide-electrolyte powder are sintered to form a ceramic electrolyte base with a reference wire electrode and a sensing wire electrode depending therefrom.

Abstract: A solid state electrochemical gas sensor for detecting trace amounts of explosive materials and a method of detecting such explosives. The sensor has at least two electrodes. The at least two electrodes include a first catalytic electrode and a second catalytic electrode that are dissimilar and an electrolyte disposed between the first catalytic electrode and the second catalytic electrode. The sensor detects at least one gaseous specie emitted by the explosive material. At least one of a potential difference and a current flow is generated by at least one of catalytic and electrochemical reactions of the gaseous species emitted by the explosive material on one of the first catalytic electrode, second catalytic electrode, and the electrolyte. An explosive detection system that incorporates such sensors and methods is also described.

Abstract: A method of making electrochemical sensors in which an electrolyte material is cast into a tape. Prefabricated electrodes are then partially embedded between two wet layers of the electrolyte tape to form a green sensor, and the green sensor is then heated to sinter the electrolyte tape around the electrodes. The resulting sensors can be used in applications such as, but not limited to, combustion control, environmental monitoring, and explosive detection. A electrochemical sensor formed by the tape-casting method is also disclosed.