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Profound bias‐ and time‐dependent changes in the electronic structure of graphene‐based supercapacitor electrodes are demonstrated under operating conditions via a combination of in operando X‐ray spectroscopy and ab initio modeling by J. R. I. Lee and co‐workers on page 1512. The evolution in electronic structure reflects changes in the surface chemistry and morphology induced by polarization of...
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...
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