Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 40, Pages 16239-16246Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm13044g
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Funding
- National Science Foundation-Nanoscale Interdisciplinary Research Team and Materials Processing and Manufacturing [CMMI 10-30755]
- NSF [DMR 10-05764]
- Welch Foundation [V-0004]
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A coupled process to recycle the polystyrene (PS) polymer nanocomposites (PNCs) is introduced to synthesize ferromagnetic core@shell Ni@C nanoparticles (NPs) and simultaneously to produce useful chemical radicals or liquid fuels. The PNCs reinforced with core@shell Ni@NiO NPs are prepared by the solvent extraction method. The Ni@NiO NPs are found to have significant catalytic effects on the pyrolysis of PS. The pyrolysis pathway changes from radical generation and beta-scission for PS to radical generation, recombination and hydrogenation for the PNCs. Gas chromatography/mass spectrometry (GC/MS) results confirm the same gas products from pure PS and its Ni@NiO PNCs. However, for the liquid products, more saturated products were obtained from the PNCs than those from pure PS due to the catalytic hydrogenation of the Ni NPs. A significantly large magnetization (25.0 emu g(-1)), anti-corrosion and high specific surface area (236.68 m(2) g(-1)) were observed in the formed core-shell NPs.
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