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A facile, template-free and low-cost strategy has been developed to construct a 3D nitrogen (N) doped graphene aerogel (GA) by the incorporation of dopamine (DA). 3D-NGA can be served as a highly efficient electrocatalyst in the reduction of H2O2, which is then applied in the nonenzymatically electrochemical determination of H2O2. The structure and morphology of hollow 3D-NGA were characterized by...
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