Abstract: Described herein are compositions and methods for the storage and release of hydrogen gas using covalent organic frameworks (COFs). Advantageously, the compositions and methods described herein may be used for the facile and rapid release of hydrogen gas at near ambient temperatures. The described COFs allow for photoactivation, where the release of gas is initiated or the rate of release is increased with the COF is exposed to electromagnetic radiation, for example, UV light.

Abstract: Described herein are compositions and methods for the storage and release of hydrogen gas using covalent organic frameworks (COFs). Advantageously, the compositions and methods described herein may be used for the facile and rapid release of hydrogen gas at near ambient temperatures. The described COFs allow for photoactivation, where the release of gas is initiated or the rate of release is increased with the COF is exposed to electromagnetic radiation, for example, UV light.

Abstract: The present disclosure relates to a composition that includes a solid core having an outer surface and a coating layer, where the coating layer covers at least a portion of the outer surface, the coating layer is permeable to hydrogen (H2), and the solid core is capable of reversibly absorbing and desorbing hydrogen.

Abstract: The present disclosure relates to a mixture that includes a mediator having a first redox potential, a non-liquid active material having a second redox potential that is less than the first redox potential, and a cation. In addition, the non-liquid active material has a first condition that includes a first oxidation state, where the cation is intercalated within the non-liquid active material, and the non-liquid active material has a second condition that includes a second oxidation state that is higher than the first oxidation state, where the non-liquid active material is substantially free of the cation. In addition, the mediator has a first condition that includes a third oxidation state and a second condition that includes a fourth oxidation state that is higher than the third oxidation state.

Abstract: The present disclosure relates to a composition that includes a solid core having an outer surface and a coating layer, where the coating layer covers at least a portion of the outer surface, the coating layer is permeable to hydrogen (H2), and the solid core is capable of reversibly absorbing and desorbing hydrogen.

Abstract: The present disclosure relates to a mixture that includes a mediator having a first redox potential, a non-liquid active material having a second redox potential that is less than the first redox potential, and a cation. In addition, the non-liquid active material has a first condition that includes a first oxidation state, where the cation is intercalated within the non-liquid active material, and the non-liquid active material has a second condition that includes a second oxidation state that is higher than the first oxidation state, where the non-liquid active material is substantially free of the cation. In addition, the mediator has a first condition that includes a third oxidation state and a second condition that includes a fourth oxidation state that is higher than the third oxidation state.

Abstract: Hybrid radical energy storage devices, such as batteries or electrochemical devices, and methods of use and making are disclosed. Also described herein are electrodes and electrolytes useful in energy storage devices, for example, radical polymer cathode materials and electrolytes for use in organic radical batteries.

Abstract: A method and device for improving the adhesion of fluorinated transparent conducting oxide films by incorporating a non-conducting, non-fluorinated adhesion layer between a substrate and a transparent conducting oxide.

Abstract: Hybrid radical energy storage devices, such as batteries or electrochemical devices, and methods of use and making are disclosed. Also described herein are electrodes and electrolytes useful in energy storage devices, for example, radical polymer cathode materials and electrolytes for use in organic radical batteries.

Abstract: Hybrid radical energy storage devices, such as batteries or electrochemical devices, and methods of use and making are disclosed. Also described herein are electrodes and electrolytes useful in energy storage devices, for example, radical polymer cathode materials and electrolytes for use in organic radical batteries.

Abstract: Method of applying a conformal coating to a highly structured substrate and devices made by the disclosed methods are disclosed. An example method includes the deposition of a substantially contiguous layer of a material upon a highly structured surface within a deposition process chamber. The highly structured surface may be associated with a substrate or another layer deposited on a substrate. The method includes depositing a material having an amorphous structure on the highly structured surface at a deposition pressure of equal to or less than about 3 mTorr. The method may also include removing a portion of the amorphous material deposited on selected surfaces and depositing additional amorphous material on the highly structured surface.

Abstract: Hybrid radical energy storage devices, such as batteries or electrochemical devices, and methods of use and making are disclosed. Also described herein are electrodes and electrolytes useful in energy storage devices, for example, radical polymer cathode materials and electrolytes for use in organic radical batteries.

Abstract: Sputtering deposition processes for generation of transparent conductive metal oxide films, and films produced by such methods, are disclosed.

Abstract: Method of applying a conformal coating to a highly structured substrate and devices made by the disclosed methods are disclosed. An example method includes the deposition of a substantially contiguous layer of a material upon a highly structured surface within a deposition process chamber. The highly structured surface may be associated with a substrate or another layer deposited on a substrate. The method includes depositing a material having an amorphous structure on the highly structured surface at a deposition pressure of equal to or less than about 3 mTorr. The method may also include removing a portion of the amorphous material deposited on selected surfaces and depositing additional amorphous material on the highly structured surface.

Abstract: The present invention discloses a carbon nanotube (SWNT)-polymer composite actuator and method to make such actuator. A series of uniform composites was prepared by dispersing purified single wall nanotubes with varying weight percents into a polymer matrix, followed by solution casting. The resulting nanotube-polymer composite was then successfully used to form a nanotube polymer actuator.

Abstract: Metal-doped single-walled carbon nanotubes and production thereof. The metal-doped single-walled carbon nanotubes may be produced according to one embodiment of the invention by combining single-walled carbon nanotube precursor material and metal in a solution, and mixing the solution to incorporate at least a portion of the metal with the single-walled carbon nanotube precursor material. Other embodiments may comprise sputter deposition, evaporation, and other mixing techniques.

Abstract: Metal-doped single-walled carbon nanotubes and production thereof. The metal-doped single-walled carbon nanotubes may be produced according to one embodiment of the invention by combining single-walled carbon nanotube precursor material and metal in a solution, and mixing the solution to incorporate at least a portion of the metal with the single-walled carbon nanotube precursor material. Other embodiments may comprise sputter deposition, evaporation, and other mixing techniques.

Abstract: A new type of electrochemical cell is described which can be used for generating electricity, or in an electrolysis mode can produce gases such as hydrogen and oxygen. The cell is constructed from laterally positioned catalyst layers as electrodes with the gap between the catalyst layers having interposed a solid polymer exchange membrane which provides an ion conductive path from the first catalyst layer to the second. The catalyst layers and the electrolyte are in the form of thin films on the surface of a supporting substrate. A plurality of these cells may be formed on the substrate and interconnected electrically forming a network of series and/or parallel connected cells. Means are provided to feed fuel and oxidant to the electrodes as separate gases through channels.

Abstract: A method of processing single-walled carbon nanotubes (SWNTs) in the formation of superbundles or for use in hydrogen storage, or both, is provided comprising the steps of mixing a SWNT substrate in a solvent solution into a suspension, and agitating the suspension using an ultrasonic energy means.

Abstract: Highly purified single-wall carbon nanotubes (SWNTs) and production thereof. The highly purified single-wall carbon nanotubes may be produced according to one embodiment of the invention by generating a crude SWNT material having a carbon nanotube fraction and a non-nanotube carbon fraction, refluxing the crude SWNT material in an acid solution to redistribute the non-nanotube carbon fraction as a uniform carbon coating on the carbon nanotube fraction, and oxidizing the refluxed SWNT material to remove the uniform carbon coating formed thereon. Preferably, metal is also removed during reflux.