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Updated: Jan 21, 2026

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
Published on: March 27, 2019
Graphitic Ordered Mesoporous Carbon Encapsulated Iron Nanocatalysts and Catalytic Properties for Ammonia
Weiyan Wu1, Changyu Zhang2, Yingzi Huang1
1School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
Abstract:
A series of ordered mesoporous Fe-MC-x nanocomposites were facilely synthesized via an evaporation induced self-assembly strategy. The Fe nanoparticles (NPs) were highly dispersed and embedded in mesoporous carbon channels, and their particle sizes (mean size = 8, 12 and 16 nm) were well tuned with the aid of acetylacetone chelating agent. Catalytic ammonia decomposition to COx-free hydrogen was used to evaluate their catalytic performances. It was found that the prepared Fe-MC-x nanocomposites showed an obvious size-dependent activity. Owing to confinement and size effect, the Fe-MC-8 nanocomposites with the smallest Fe NPs showed the highest ammonia decomposition activity, giving a nearly 72% NH₃ conversion and 16.24 mol g-1Fe h-1 at 600 °C under a GHSV = 6000 h-1.
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