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A combined dual-metal template method was used to prepare magnetic hierarchical porous carbon (MHPC). In this work, agar was selected as the carbon source and chelating agent, and Zn(NO3)2·6H2O and FeCl3 simultaneously served as the sources of the dual-metal center ions and as structure-directing agents. Zn2+ and Fe3+ ions were coordinated with agar via a chelate-assisted co-assembly route. The mixture...
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