A thermal-gradient approach to variable-temperature measurements resolved in space.

Journal of Applied Crystallography
Daniel O'NolanKarena W Chapman

Abstract

Temperature is a ubiquitous environmental variable used to explore materials structure, properties and reactivity. This article reports a new paradigm for variable-temperature measurements that varies the temperature continuously across a sample such that temperature is measured as a function of sample position and not time. The gradient approach offers advantages over conventional variable-temperature studies, in which temperature is scanned during a series measurement, in that it improves the efficiency with which a series of temperatures can be probed and it allows the sample evolution at multiple temperatures to be measured in parallel to resolve kinetic and thermodynamic effects. Applied to treat samples at a continuum of tem-peratures prior to measurements at ambient temperature, the gradient approach enables parametric studies of recovered systems, eliminating temperature-dependent structural and chemical variations to simplify interpretation of the data. The implementation of spatially resolved variable-temperature measurements presented here is based on a gradient-heater design that uses a 3D-printed ceramic template to guide the variable pitch of the wire in a resistively heated wire-wound heater element. The configur...Continue Reading

References

Oct 14, 2004·Chemical Society Reviews·John S O Evans, Ivana Radosavljevic Evans
Oct 28, 2004·Journal of the American Chemical Society·Ryotaro MatsudaMasaki Takata
Feb 1, 2007·Journal of Applied Crystallography·Graham W Stinton, John S O Evans
May 16, 2012·Journal of the American Chemical Society·Daniel P ShoemakerMercouri G Kanatzidis
Jun 7, 2016·Journal of the American Chemical Society·Kent J GriffithClare P Grey
Feb 1, 2017·Journal of the American Chemical Society·Daniil A KitchaevGerbrand Ceder

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Citations

May 27, 2021·Nature Communications·Matthew J McDermottKristin A Persson
Oct 23, 2020·Journal of the American Chemical Society·Yevgeny RakitaKarena W Chapman

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