A nitrogen-doped carbon material with uniformed micro-porosity structure was synthesized by carbonized a copolymer made with a molecular-scale template, octa(aminophenyl)silsesquioxane, and phenolic resol and the silica domain removing. High nitrogen content as well as unimodal micropore with narrow size distribution were achieved. This nitrogen doped well-defined microporous carbon exhibited high electrochemical hydrogen storage and superior stability over those in regular active carbon material. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.