English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The carbon nanofibers (CNFs) used in this study were synthesized with an iron catalyst and ethylene as a carbon source. A concentration of 30 wt % iron(III) acetylacetonate was dissolved in resol type phenol resin and polyurethane foam was put into the solution. The sample was calendered after being cured at 80 °C in air for 24 h. Stabilization and carbonization of the resol type phenol resin and reduction of the Fe were completed in a high-temperature furnace by the following steps: 1) heating to 600 °C at a rate of 10 °C/min with a mixture of H2/N2 for 4 h to reduce the Fe 3+ to Fe; 2) heating to 1000 °C in N2 at a rate 10 °C/min for 30 minutes for pyrolysis; 3) synthesizing CNFs in a mixture of 20.1% ethylene and H2/N2 at 700 °C for 2 h using a CVD process. Finally, the structural characterization of the CNFs was performed by scanning electron microscopy and a synthesis analysis was carried out using energy dispersive spectroscopy and X-ray photoelectron spectroscopy. Specific surface area analysis of the CNFs was also performed by N2-sorption.

Synthesis of Carbon Nanofibers Based on Resol Type Phenol Resin and Fe(III) Catalysts