Abstract:
A chemical processing microsystem useful for identifying and optimizing materials (e.g., catalysts) that enhance chemical processes or for characterizing and/or optimizing chemical processes is disclosed. The chemical processing microsystem comprises a plurality of microreactors (600) and, in a preferred embodiment, a plurality of microseparators (900) integral with the chemical processing microsystem (10). The microreactors (600) are preferably diffusion-mixed microreactors formed in a plurality of laminae that include a modular, interchangeable candidate-material array (100). The material array (100) comprises a plurality of different candidate materials (e.g., catalysts), preferably arranged at separate, individually addressable portions of a substrate (e.g., wafer). The microseparators (900) are similarly formed in a plurality of laminae that include a modular, interchangeable adsorbent array (700). The adsorbent array (700) comprises one or more adsorbents, preferably arranged at separate, individually addressable portions of a substrate to spatially correspond to the plurality of different candidate materials. Modular microfluidic distribution systems are also disclosed. The chemical processing microsystem can be integrated into a material evaluation system that enables a comprehensive combinatorial material science research program.
Abstract:
A method of characterizing materials comprising the steps of: providing a substrate; synthesizing an array of materials on said substrate; providing at least one reactant gas wherein said reactant gas is in contact with said array of materials; activating at least one of said materials on said array with a heating source; and periodically monitoring an infrared emission from said activated material with an infrared camera, wherein said infrared camera outputs a series of signals corresponding to an emission intensity varying with time of said activated material.
Abstract:
A method of characterizing materials comprising the steps of: providing a substrate; synthesizing an array of materials on said substrate; providing at least one reactant gas wherein said reactant gas is in contact with said array of materials; activating at least one of said materials on said array with a heating source; and periodically monitoring an infrared emission from said activated material with an infrared camera, wherein said infrared camera outputs a series of signals corresponding to an emission intensity varying with time of said activated material.
Abstract:
A method for analyzing a fluid contained within a machine, comprising the steps of providing a machine system (100) including a passage (104) for containing a fluid; placing a sensor (106) including a mechanical resonator in the passage; operating the resonator to have a portion thereof translate through the fluid; and monitoring the response of the resonator to the fluid in the passage. One specific sensor includes a tuning fork resonator.
Abstract:
A method of characterizing materials comprising the steps of: providing a substrate; synthesizing an array of materials on said substrate; providing at least one reactant gas wherein said reactant gas is in contact with said array of materials; activating at least one of said materials on said array with a heating source; and periodically monitoring an infrared emission from said activated material with an infrared camera, wherein said infrared camera outputs a series of signals corresponding to an emission intensity varying with time of said activated material.
Abstract:
The present invention discloses an apparatus and method for rapid analysis of members of a combinatorial library. The apparatus includes a plurality of vessels for containing individual library members and a fluid handling system that apportions a test fluid about equally between each of the vessels. This allows for simultaneous screening of library members by detecting changes in test fluid following contact with individual library members. Fluid flow through each of the vessels is controlled using passive flow restrictors or active flow controllers to ensure that each library member contacts approximately the same amount of test fluid per unit time. The disclosed apparatus is especially useful for screening library members based on their ability to catalyze the conversion of fluid reactants.
Abstract:
A chemical processing microsystem useful for identifying and optimizing materials (e.g., catalysts) that enhance chemical processes or for characterizing and/or optimizing chemical processes is disclosed. The chemical processing microsystem comprises a plurality of microreactors (600) and, in a preferred embodiment, a plurality of microseparators (900) integral with the chemical processing microsystem (10). The microreactors (600) are preferably diffusion-mixed microreactors formed in a plurality of laminae that include a modular, interchangeable candidate-material array (100). The material array (100) comprises a plurality of different candidate materials (e.g., catalysts), preferably arranged at separate, individually addressable portions of a substrate (e.g., wafer). The microseparators (900) are similarly formed in a plurality of laminae that include a modular, interchangeable adsorbent array (700). The adsorbent array (700) comprises one or more adsorbents, preferably arranged at separate, individually addressable portions of a substrate to spatially correspond to the plurality of different candidate materials. Modular microfluidic distribution systems are also disclosed. The chemical processing microsystem can be integrated into a material evaluation system that enables a comprehensive combinatorial material science research program.
Abstract:
A method for analyzing a fluid contained within a machine, comprising the steps of providing a machine system (100) including a passage (104) for containing a fluid; placing a sensor (106) including a mechanical resonator in the passage; operating the resonator to have a portion thereof translate through the fluid; and monitoring the response of the resonator to the fluid in the passage. One specific sensor includes a tuning fork resonator.
Abstract:
Protocols for designing and implementing sets of simultaneous experiments, in a parallel, multi-variable process optimization reactor, are disclosed. The multi-variable process optimization reactor is preferably a parallel flow reactor having the operational capability to simultaneously vary reaction conditions between reaction vessels - either modularly or independently. The simultaneously varied reaction conditions preferably include at least two of the following, in various combinations and permutations: space velocity, contact time, temperature, pressure and feed composition. Compositional variations in the catalysts residing in each of the reaction vessels can also be investigated in the set of simultaneous experiments implemented in the parallel reactor. Sufficient data is obtained from a single set of simultaneous experiments to generate a master curve.