Preparation of microporous oxygen- and nitrogen-rich carbon materials via pre-oxidation-hydrothermal synergistic regulation strategy and the nonlinear enhancement effect in zinc ion storage

doi:10.1016/j.carbon.2026.121248

Preparation of microporous oxygen- and nitrogen-rich carbon materials via pre-oxidation-hydrothermal synergistic regulation strategy and the nonlinear enhancement effect in zinc ion storage

2026-01-08

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DOI：10.1016/j.carbon.2026.121248

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• N/O-APC-2 was directional prepared by using asphaltene with HNO3 pre-oxidized. • The effect of HNO3 on the pyrolysis behavior of asphaltene was firstly investigated. • For ZIHSs, N/O-APC-2 exhibited a high reversible capacity of 220.1 mAh g−1 at 0.1 A g−1. • The storage mechanism demonstrated by DFT and ex situ characterizations. • Solid-state ZIHSs combine high energy density with excellent flexibility.

Preparation of microporous oxygen- and nitrogen-rich carbon materials via pre-oxidation-hydrothermal synergistic regulation strategy and the nonlinear enhancement effect in zinc ion storage

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