High-pressure and high-temperature differential scanning calorimeter for combined pressure-concentration-temperature measurements of hydrides

Mauron, Ph.; Bielmann, M.; Bissig, V.; Remhof, A.; Züttel, A.
September 2009
Review of Scientific Instruments;Sep2009, Vol. 80 Issue 9, p095113
Academic Journal
The design and construction of a high-pressure (200 bar) and high-temperature (600 °C) heat-flow differential scanning calorimeter (DSC) for the in situ investigation of the hydrogenation and dehydrogenation reactions of hydrides is presented. In combination with a pressure-concentration-temperature (pcT) system, simultaneous thermodynamic and volumetric measurements become accessible. Due to the high thermal conductivity of hydrogen, only the sample cell and the reference cell are exposed to hydrogen and the remaining system is under ambient conditions. This separation has the advantage that the calibration factor is independent of the hydrogen pressure. The internal empty volume of the combined system is as low as possible to maximize the precision of the pcT measurements. The calorimetric block of the DSC is designed with a silver/copper alloy and the temperature measurements are made resistively with platinum temperature sensors (Pt 100). The instrument was calibrated and its operability was successfully studied on the example of the hydrogen sorption behavior of LaNi5.


Related Articles

  • The electron catcher (EC) of SciBooNE. Giganti, C. // AIP Conference Proceedings;12/21/2007, Vol. 967 Issue 1, p301 

    In this paper we describe the electromagnetic calorimeter of the SciBooNE experiment. First we will give some technical details and then we will describe the response of this detector to electrons and muons.

  • Cryogenic Design of the Setup for MARE-1 in Milan. C. Kilbourne; D. McCammon // Journal of Low Temperature Physics;May2008, Vol. 151 Issue 3/4, p623 

    Abstract  A large worldwide collaboration is growing around the project of Micro-calorimeter Arrays for a Rhenium Experiment (MARE) for a direct calorimetric measurement of the neutrino mass. To validate the use of cryogenic detectors by checking the presence of unexpected...

  • Extended-Range Temperature Sensing ICs. Lacanette, Kerry // ECN: Electronic Component News;Jan2004, Vol. 48 Issue 1, p13 

    Provides information on digital "remote" temperature sensors that use an external bipolar transistor as the sensing element for monitoring die temperature on high-speed, high-performance integrated circuits (IC) like microprocessors and graphics processors. Upper measurement limits of all...

  • Fiber optic distributed temperature sensing for the determination of the nocturnal atmospheric boundary layer height. Keller, C. A.; Huwald, H.; Vollmer, M. K.; Wenger, A.; Hill, M.; Parlange, M. B.; Reimann, S. // Atmospheric Measurement Techniques Discussions;2010, Vol. 3 Issue 3, p2723 

    The article presents a study which examines the importance of fiber optic distributed temperature sensing (DTS) method to determine nocturnal atmospheric boundary layer. Based on Raman scattering analysis, it found that observed stable temperature data showed exponential shape confirming...

  • Electronic Facial Thermography: An Analysis of Asymptomatic Adult Subjects. Gratt, Barton M.; Sickles, Edward A. // Journal of Orofacial Pain; 

    Vascular heat emissions that present on the human face can provide physiologic indicators of underlying health or disease. Electronic thermography may serve as a nonionizing, noninvasive alternative for solving diagnostic problems. This study was designed to quantify normal values of vascular...

  • A Matrix Carbon Detector for Measuring the Energy Flux of a High-Power Beam of Hydrogen Ions. Stepovik, A. P.; Lukin, A. V.; Khmel'nitskii, D. V.; Bratchikov, V. B.; Kozikov, A. N. // Instruments & Experimental Techniques;Mar/Apr2003, Vol. 46 Issue 2, p275 

    A matrix detector consisting of small calorimeters based on УПВ-1 pyrolytic carbon is described. The detector allows measurements of the spatial distribution of the energy flux of a high-power hydrogen ion beam to be taken over its cross section. Each calorimeter occupies an area of 4...

  • Reconstructing the coordinates of inclined showers in lead glass electromagnetic calorimeters. Vasil’ev, A.; Mochalov, V.; Solov’ev, L. // Instruments & Experimental Techniques;Jul2007, Vol. 50 Issue 4, p458 

    A method for reconstructing the coordinates of inclined showers in lead glass electromagnetic calorimeters is described. Such showers are generated by photons with energies of 0.5–4.0 GeV that are incident on the detector at angles of as great as 30°. An analytical expression for the...

  • A microcalorimeter for measuring heat effects of electrochemical reactions with submonolayer conversions. Etzel, Kai D.; Bickel, Katrin R.; Schuster, Rolf // Review of Scientific Instruments;Mar2010, Vol. 81 Issue 3, p034101 

    We present a microcalorimeter for measuring heat effects during electrochemical reactions with conversions down to a few percent of a monolayer, referenced to the electrode’s surface atoms. The design uses a thin pyroelectric polymer foil for temperature measurement at the backside of a...

  • Complex microcalorimeter models and their application to position-sensitive detectors. Figueroa-Feliciano, Enectali // Journal of Applied Physics;6/1/2006, Vol. 99 Issue 11, p114513 

    We present a general formalism for calculating the linear response, noise spectrum, and energy resolution of complex calorimeters. Using this formalism calorimeters with arbitrary numbers of distinct linked heat capacity systems and/or coupled thermometers can be analyzed. We use this formalism...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics