Publications by authors named "Felix Herold"
Article Synopsis
- A series of platinum catalysts were developed using carbon nanofibers doped with various elements like nitrogen, sulfur, and phosphorus to study their effects on the efficiency of converting ethylene glycol to hydrogen in an aqueous environment.
- In situ X-ray absorption spectroscopy was utilized to analyze the platinum's changing states during this process, revealing significant differences in performance and structure among the various doped catalysts.
- The nitrogen-doped catalyst outperformed others in hydrogen production due to better platinum dispersion, while sulfur-doped showed the least activity, and phosphorus-doped led to alcohol production, highlighting how the local environment around platinum influences catalytic outcomes.
A new strategy affords "non-nano" carbon materials as dehydrogenation catalysts that perform similarly to nanocarbons. Polymer-based carbon precursors that combine a soft-template approach with ion adsorption and catalytic graphitization are key to this synthesis strategy, thus offering control over macroscopic shape, texture, and crystallinity and resulting in a hybrid amorphous/graphitic carbon after pyrolysis. From this intermediate the active carbon catalyst is prepared by removing the amorphous parts of the hybrid carbon materials via selective oxidation.
View Article and Find Full Text PDFBorocarbonitrides (BCNs) have emerged as highly selective catalysts for the oxidative dehydrogenation (ODH) reaction. However, there is a lack of in-depth understanding of the catalytic mechanism over BCN catalysts due to the complexity of the surface oxygen functional groups. Here, BCN nanotubes with multiple active sites are synthesized for oxygen-assisted methanol conversion reaction.
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