Abstract:
Various embodiments of the resistive memory cells and arrays discussed herein comprise: (1) a first electrode; (2) a second electrode; (3) resistive memory material; and (4) a diode. The resistive memory material is selected from the group consisting of SiO x , SiO x H, SiO x N y , SiO x N y H, SiO x Cz, SiO x C z H, and combinations thereof, wherein each of x, y and z are equal or greater than 1 or equal or less than 2. The diode may be any suitable diode, such as n-p diodes, p-n diodes, and Schottky diodes.
Abstract:
Composite materials for carbon dioxide (C02) capture that include: (1) a mesoporous carbon source; and (2) an in situ polymerized polymer that is associated with the mesoporous carbon source, where the in situ polymerized polymer is selected from the group consisting of thiol-based polymers, amine-based polymers, and combinations thereof. Methods of making the composite materials for C02 capture include: (1) associating a mesoporous carbon source with monomers, where the monomers are selected from the group consisting of thiol-based monomers, amine-based monomers, and combinations thereof; and (2) polymerizing the monomers in situ to form said composite materials. Further embodiments of the present invention pertain to methods of capturing C02 from an environment by associating the environment with one or more of the aforementioned composite materials.
Abstract:
In some embodiments, the present invention provides graphene nanoribbon composites that include a polymer matrix and graphene nanoribbons that are dispersed in the polymer matrix. In more specific embodiments, the polymer matrix of the composite is an epoxy matrix, and the graphene nanoribbons of the composite include functionalized graphene nanoribbons. In further embodiments, the composites of the present invention further comprise metals, such as tin, copper, gold, silver, aluminum and combinations thereof. Additional embodiments of the present invention pertain to methods of making the graphene nanoribbon composites of the present invention. In some embodiments, such methods include mixing graphene nanoribbons with polymer precursors to form a mixture, and then curing the mixture to form the composite.
Abstract:
Methods and compositions for use in drilling a wellbore into an earthen formation that includes the use of a graphene-based material, where the graphene-based material may be at least one of graphene, graphene oxide, chemically converted graphene, and derivatized graphite oxide are shown and described. In certain examples, the methods and compositions reduce permeability damage and/or stabilize shales.
Abstract:
Various embodiments of the present invention pertain to memresistor cells that comprise: (1) a substrate; (2) an electrical switch associated with the substrate; (3) an insulating layer; and (3) a resistive memory material. The resistive memory material is selected from the group consisting of SiO x , SiO x H, SiO x N y , SiO x N y H, SiO x Cz, SiO x C z H, and combinations thereof, wherein each of x, y and z are equal or greater than 1 or equal or less than 2. Additional embodiments of the present invention pertain to memresistor arrays that comprise: (1) a plurality of bit lines; (2) a plurality of word lines orthogonal to the bit lines; and (3) a plurality of said memresistor cells positioned between the word lines and the bit lines. Further embodiments of the present invention provide methods of making said memresistor cells and arrays.
Abstract translation:本发明的各种实施方案涉及包含以下各项的忆阻电池单元:(1)衬底; (2)与基板相关联的电开关; (3)绝缘层; 和(3)电阻性记忆材料。 电阻性存储器材料选自由SiO x,SiO x H,SiO x N y,SiO x N y H,SiO x C z,SiO x C z H及其组合组成的组,其中x,y和z中的每一个等于或大于1或等于或小于2。 本发明涉及包括:(1)多个位线的磁阻阵列; (2)与位线正交的多个字线; 和(3)位于字线和位线之间的多个所述再生电阻单元。 本发明的另外的实施例提供了制造所述记忆体电池和阵列的方法。
Abstract:
The present invention concerns methods and compositions concerning a long- acting biocompatible heavier-than-water internal tamponade agent for use in vitreoretinal surgery, for example. In specific cases, the invention includes a particular silicone oil in compositions and methods encompassed herein.
Abstract:
Methods for producing macroscopic quantities of oxidized graphene nanoribbons are disclosed herein. The methods include providing a plurality of carbon nanotubes and reacting the plurality of carbon nanotubes with at least one oxidant to form oxidized graphene nanoribbons. The at least one oxidant is operable to longitudinally open the carbon nanotubes. In some embodiments, the reacting step takes place in the presence of at least one acid. In some embodiments, the reacting step takes place in the presence of at least one protective agent. Various embodiments of the present disclosure also include methods for producing reduced graphene nanoribbons by reacting oxidized graphene nanoribbons with at least one reducing agent. Oxidized graphene nanoribbons, reduced graphene nanoribbons and compositions and articles derived therefrom are also disclosed herein.
Abstract:
The present invention is directed to aryl halide (such as aryl bromide) functionalized carbon nanotubes can be utilized in anionic polymerization processes to form polymer-carbon nanotube materials with improved dispersion ability in polymer matrices. In this process the aryl halide is reacted with an alkyllithium species or is reacted with a metal to replace the aryl-bromine bond with an aryl-lithium or aryl-metal bond, respectively. It has further been discovered that other functionalized carbon nanotubes, after deprotonation with a deprotonation agent, can similarly be utilized in anionic polymerization processes to form polymer-carbon nanotube materials. Additionally or alternatively, a ring opening polymerization process can be performed. The resultant materials can be used by themselves due to their enhanced strength and reinforcement ability when compared to their unbound polymer analogs. Additionally, these materials can also be blended with pre-formed polymers to establish compatibility and enhanced dispersion of nanotubes in otherwise hard to disperse matrices resulting in significantly improved material properties. The resultant polymer-carbon nanotube materials can also be used in drug delivery processes due to their improved dispersion ability and biodegradability, and can also be used for scaffolding to promote cellular growth of tissue.
Abstract:
An assembly of a NanoCell comprising a disordered array of metallic islands interlinked with molecules between metallic input/output leads and with disordered arrays of molecules and Au islands is disclosed. The NanoCell may function both as a memory device that is programmable post-fabrication. The assembled NanoCells exhibit reproducible switching behavior and at least two types of memory effects at room temperature. The switch-type memory is characteristic of a destructive read while the conductivity-type memory features a nondestructive read. Both types of s memory effects are stable for more than a week at room temperature and bit level ratios (0:1) of the conductivity-type memory have been observed to be as high as 10 :1 and reaching 10 :1 upon ozone treatment which likely destroys extraneous leakage pathways. The invention demonstrates the efficacy of a disordered nano-scale array for high-yielding switching and memory while mitigating the arduous task of nano-scale patterning.
Abstract:
The present invention provides methods by which carbon nanotubes can be functionalized under solvent-free conditions. As extremely large quantities are typically required to dissolve or disperse carbon nanotubes, solvent elimination renders the processes more favorable for scale-up. Such processes are also amenable to a wide variety of chemical reactions and organic functionalizing agents.