Potential-induced electronic structure changes in supercapacitor electrodes observed by in operando soft X-ray spectroscopy.
basic_science · Level V
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- Record sourced from PubMed, PMID 25503328.
- Also identified by DOI 10.1002/adma.201403680.
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Abstract
The dynamic physiochemical response of a functioning graphene-based aerogel supercapacitor is monitored in operando by soft X-ray spectroscopy and interpreted through ab initio atomistic simulations. Unanticipated changes in the electronic structure of the electrode as a function of applied voltage bias indicate structural modifications across multiple length scales via independent pseudocapacitive and electric double layer charge storage channels.