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Due to the complex control of nitrogen (N) species in functionalizing the carbon nanotubes (CNTs), the contribution of N species to catalysis is difficult to understand. In this study, we report a facile one-pot approach for the synthesis of N-doped CNTs with N present only in the pyrrolic form using a hydrothermal method and by tailoring the treatment conditions, the N content could reach 2.3at.%...
Iron-based catalysts supported on N-doped CNTs (NCNTs) treated by various concentrations of nitric acid for Fischer–Tropsch synthesis (FTS) were investigated. An improved catalytic performance for the iron catalyst supported on acid treated NCNTs was obtained and the suitable nitric acid concentration was 10M. The physiochemical properties of the NCNTs and the corresponding catalysts were characterized...
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