摘要:
A reagent suitable for use as a catalyst comprises a first metal species substrate having a second reduced metal species coated thereon, the second reduced metal species being less electropositive than the first metal. Methods of manufacture are also provided.
摘要:
Methods for synthesizing dimeric or higher polymeric reaction products of nitrogen aromatics comprise contacting a composition comprising the nitrogen aromatic with a catalyst composition. The catalyst is in particulate form and comprises a first metal substrate having a second reduced metal coated on the substrate.
摘要:
Methods for synthesizing dimeric or polymeric reaction products of nitrogen aromatics comprise contacting a composition comprising the nitrogen aromatic with a catalyst composition. The catalyst comprises a first metal substrate having a second reduced metal coated on the substrate.
摘要:
Methods for synthesizing dimeric or polymeric reaction products of nitrogen aromatics comprise contacting a composition comprising the nitrogen aromatic with a catalyst composition. The catalyst comprises a first metal substrate having a second reduced metal coated on the substrate.
摘要:
A fuel cell comprising a membrane electrode assembly (MEA) that is made up of a membrane sandwiched between first and second electrodes, a contaminant peroxide, damaging to the MEA, and at least one constituent with the contaminant peroxide that prevents, or at least inhibits, decomposition of at least one of the first electrode, the second electrode, the membrane, and any combination thereof.
摘要:
A microfibrous article includes a substrate and a plurality of magnetic fibers disposed on the substrate. Each of the plurality of magnetic fibers is individually sheathed with a polymer and includes a plurality of magnetic particles. Further, each of the plurality of magnetic fibers is aligned along a magnetic field and not connected by the polymer to any adjacent magnetic fiber. A method of forming the microfibrous article is also disclosed.
摘要:
A thermo-reversible dry adhesive, having shape memory polymer characteristics, introduces one or more particles of micro- or nano-particles to at least one layer of the at least one layer of shape memory polymer. These particles may be remotely activated to induct heat sufficient to transform the dry adhesive material from its temporary shape to its permanent shape in the absence of load, which allows the dry adhesive to be reversibly coupled to one or more substrates, wherein the degree of adhesion is greater when the dry adhesive is in the temporary shape than in the permanent shape.
摘要:
A method of reversibly connecting two substrates includes positioning an electrically conductive adhesive connector including a shape memory polymer (SMP) between the substrates, heating the connector to a temperature higher than the SMP transition temperature, applying a load and cooling the connector below the transition temperature to transform the connector to a conforming shape to form an adhesive bond attaching the substrates and providing an electrical connection therebetween. The method may include disconnecting the connector from the substrates by heating the connector above the SMP transition temperature, which may disrupt the electrical connection between the substrates. The connector may be a battery tab connector configured to connect a battery cell to another battery cell or a terminal. The connector may be releasable from the battery tab such that the battery tab is reusable after removal of the connector. The connector may be multi-layer and generally arcuate in a permanent shape.
摘要:
A method of reversibly connecting two substrates includes positioning an electrically conductive adhesive connector including a shape memory polymer (SMP) between the substrates, heating the connector to a temperature higher than the SMP transition temperature, applying a load and cooling the connector below the transition temperature to transform the connector to a conforming shape to form an adhesive bond attaching the substrates and providing an electrical connection therebetween. The method may include disconnecting the connector from the substrates by heating the connector above the SMP transition temperature, which may disrupt the electrical connection between the substrates. The connector may be a battery tab connector configured to connect a battery cell to another battery cell or a terminal. The connector may be releasable from the battery tab such that the battery tab is reusable after removal of the connector. The connector may be multi-layer and generally arcuate in a permanent shape.