Calorimeter
AssigneesThe Regents of the University of Michigan, Google Inc.
InventorsEdgar Meyhofer, Pramod Reddy, David Fork, Ju Won Lim, Amin Reihani
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Abstract
Provided herein is technology relating to calorimetry and particularly, but not exclusively, to apparatuses, methods, and systems for making high-resolution thermodynamic measurements of reactions between gas phase reactants and nanomaterials. For example, the technology can provide thermodynamic measurements with a high heat flow resolution and long term stability at a wide range of temperatures and reaction pressures. The technology is used, for example, to study the thermodynamics of surface reactions and phase transformations in nanomaterials.
Claims17
A calorimetry system comprising:
- i) a calorimetry apparatus comprising:
- a capillary comprising a sample holder capsule;
- an inner thermal shield encapsulating the capillary and in thermal communication with the capillary;
- and
- an outer thermal shield encapsulating the inner thermal shield and thermally isolated from an environment;
- and
- ii) a gas handling unit configured to provide a gas phase reactant to the sample holder capsule,
- wherein said gas handling unit comprises:
- a gas handling unit capillary tube coupled to the calorimetry apparatus capillary;
- and
- a prechamber configured to hold and provide the gas phase reactant to the gas handling unit capillary tube.
Dependencies are inferred from the claim text.