AI Article Synopsis
- Organic materials are gaining popularity as sustainable electrode materials for future batteries, but their electrochemical mechanisms are not well-studied due to a lack of effective analytical techniques.
- A new in operando attenuated total reflectance infrared spectroscopy method has been developed to monitor infrared-active band changes during reduction/oxidation in lithium batteries.
- This method has been applied to analyze various organic polymers and specifically investigates the redox reaction of poly(anthraquinonyl sulfide) in magnesium batteries, revealing a mechanism involving the reduction of carbonyl bonds.
Article Abstract
Organic materials are receiving an increasing amount of attention as electrode materials for future post lithium-ion batteries due to their versatility and sustainability. However, their electrochemical reaction mechanism has seldom been investigated. This is a direct consequence of a lack of straightforward and broadly available analytical techniques. Herein, a straightforward in operando attenuated total reflectance infrared spectroscopy method is developed that allows visualization of changes of all infrared active bands that occur as a consequence of reduction/oxidation processes. In operando infrared spectroscopy is applied to the analysis of three different organic polymer materials in lithium batteries. Moreover, this in operando method is further extended to investigation of redox reaction mechanism of poly(anthraquinonyl sulfide) in a magnesium battery, where a reduction of carbonyl bond is demonstrated as a mechanism of electrochemical activity. Conclusions done by the in operando results are complemented by synthesis of model compound and density functional theory calculation of infrared spectra.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5812995 | PMC |
| http://dx.doi.org/10.1038/s41467-018-03114-1 | DOI Listing |
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