For temperature-specific measurement in porous materials characterisation, Oxford Instruments and Quantachrome develop a cryostat to provide the precise temperature control for gas sorption studies
Oxford Instruments and Quantachrome collaborate on new level of capability in gas sorption measurements.
The new cryostat gives researchers the ability to easily perform gas sorption studies at any temperature between 77K and 200K using only liquid nitrogen as a cryogen, with a 24-hour hold time to enable round-the-clock experiments.
Because the structure and reactivity of solid materials determines how their surfaces interact with gas molecules, monitoring the gas sorption process can provide valuable information about the characteristics of technologically useful solids.
Routine evaluation of important materials properties that control their performance - such as surface area, size and shape of pores, chemically active sites, and many others - is possible by quantifying the gas - solid interactions through isothermal gas sorption measurements.
This advance in gas sorption capability allows scientists to make measurements across a wide range of temperatures, without the usual restriction of having only a limited number of specific temperatures using baths of different cryogenic liquids or melting solids.
For example, high resolution micro/mesopore analysis by argon adsorption can be performed at 87K without expense of liquid argon.
Martin Thomas, director of business development at Quantachrome, comments: "In response to a growing need in the world of porous materials characterisation for specialised temperature applications, Quantachrome approached Oxford Instruments to develop a customised cryostat because of their recognised expertise in this field of low temperature control".
Quantachrome unveiled the new jointly-developed product at Pittcon 2008 in New Orleans, USA.
