AI Article Synopsis
- Researchers examined the oxidation of nickel powder using advanced X-ray microscopy, capturing images of the reaction in real-time at a high resolution of 55 nm.
- The experimental setup simulated conditions similar to those found in solid oxide fuel cells, allowing for detailed analysis of the process.
- The study confirmed the conversion of nickel to nickel oxide and utilized an unreacted core model to calculate reaction rates and activation energy, paving the way for future studies on similar chemical reactions.
Article Abstract
The oxidation of nickel powder under a controlled gas and temperature environment was studied using synchrotron-based full-field transmission X-ray microscopy. The use of this technique allowed for the reaction to be imaged in situ at 55 nm resolution. The setup was designed to fit in the limited working distance of the microscope and to provide the gas and temperature environments analogous to solid oxide fuel cell operating conditions. Chemical conversion from nickel to nickel oxide was confirmed using X-ray absorption near-edge structure. Using an unreacted core model, the reaction rate as a function of temperature and activation energy were calculated. This method can be applied to study many other chemical reactions requiring similar environmental conditions.
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| http://dx.doi.org/10.1017/S1431927615000021 | DOI Listing |
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