Development of a Novel Environmental Cell for In-Situ Gas Reaction Experiments via Aberration-Corrected STEM Imaging
- ORNL
- University of Michigan
- Protochips Inc., Raleigh, NC
A novel heating technology composed of a disposable MEMS-based (microelectromechanical systems) device has recently been developed and shown to provide unique in-situ heating capabilities in electron microscopes [1]. Protochips, Inc. (Raleigh, NC) provides the AduroTM heater technology, composed of a disposable MEMS device that serves both as the heating element and the specimen support grid, a TEM holder with electrical feed-throughs, and an external current source. This system has been shown to provide near instantaneous (106 C/s) heating and cooling, and is stable to the limit of the microscope's specimen stage so full sub- ngstr m image resolution in highangle annular dark-field imaging mode can be achieved on our JEOL 2200FS scanning transmission electron microscope (STEM/TEM) instrument, fitted with a hexapole corrector on the probe-forming lenses (CEOS GmbH, Heidelberg, Ger.). This heating technology is being extended to function in a closed cell system that allows heating in a gaseous environment for in-situ elevated temperature reaction studies. The design concepts and early results of testing of the environmental cell (E-cell) performance are detailed here.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1362185
- Resource Relation:
- Journal Volume: 16; Journal Issue: S2; Conference: Microscopy & Microanalysis 2010, Portland, OR, USA, 20100801, 20100805
- Country of Publication:
- United States
- Language:
- English
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