Coral-like hierarchical carbon nanoarchitectures loaded with Rh- and Co-porphyrins as high-efficiency electrodes: effect of pore morphology on CO oxidation and oxygen reduction performanceElectronic supplementary information (ESI) available: Details of the materials characterization method and electrochemical measurements, porphyrin adsorption model, and additional characterization data (N2 sorption isotherms, electron micrographs and voltammograms). See DOI: 10.1039/c8ta05897k

Hierarchically nanostructured, coral-like carbons with uniform spherical ∼50 nm pores and