Hollow carbon nanospheres prepared by carbonizing polymethylmethacrylate/polyacrylonitrile core/shell polymer particles
Source abstract
Abstract
Hollow carbon nanospheres (HCNs) were synthesized by carbonizing fine core/shell particles of polymethylmethacrylate (PMMA)/polyacrylonitrile (PAN). The PMMA/PAN core/shell particles were prepared using two-stage soapless emulsion polymerization. PMMA spheres with a diameter of approximately 200 nm were first synthesised by batch mode polymerization and then a PAN shell with a thickness of approximately 30 nm was polymerized on the surface of PMMA spheres by drop-wise addition of acrylonitrile monomer. After freeze drying, PMMA/PAN composite particles were stabilized in air at 250 °C and then carbonized in nitrogen at 1000 °C. Transmission electron microscopy of the final sample showed that all PMMA cores turned into pores and all PAN shells developed into carbon shells. The PMMA/PAN composite particles were converted to HCNs with some adhering with each other and some breaking of the carbon shells.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Carbon Nanotubes in Composites · Graphene research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
Show source-provided references
1. Preparation and characteristics of fine hollow carbon particles[J]10.1006/jcis.1996.0038 ↗
2. Fabrication of carbon nanocapsules using PMMA/PDVB core/shell nanoparticles[J]10.1021/cm034006+ ↗
3. Crystalline carbon hollow spheres, crystalline carbon-SnO2 hollow spheres, and crystalline SnO2 hollow spheres: synthesis and performance in reversible Li-ion storage[J]10.1002/1521-4095(20021002)14:19<1390::AID-ADMA1390>3.0.CO;2-T ↗
4. A practical method for the production of hollow carbon onion particles[J]
5. Crystalline carbon hollow spheres, crystalline carbon-SnO2 hollow spheres, and crystalline SnO2 hollow spheres: synthesis and performance in reversible Li-ion storage[J]10.1021/cm052219o ↗
6. Ordered mesoporous carbon hollow spheres nanocast using mesoporous silica via chemical vapor deposition[J]10.1002/adma.200306448 ↗
7. A practical method for the production of hollow carbon onion particles[J]10.1016/j.jallcom.2006.01.031 ↗
8. A medial-reduction route to hollow carbon spheres[J]10.1016/S0008-6223(03)00143-X ↗
9. Fabrication of hollow carbon cones[J]10.1016/j.carbon.2003.12.033 ↗
10. Preparation of hollow carbon nanospheres at low temperature via new reaction route[J]10.1016/j.jssc.2004.12.008 ↗
11. A novel route to hollow and solid carbon spheres[J]10.1016/j.carbon.2004.11.032 ↗
12. A simple route for the synthesis of coral-like accretion of hollow carbon microspheres with thin walls[J]10.1016/j.carbon.2006.03.008 ↗
13. Synthesis of hollow carbon microspheres in ionic liquids and their electrochemical capacitance characteristics[J]10.1016/j.matchemphys.2005.09.063 ↗
14. Necklace-like hollow carbon nanospheres from the pentagon-including reactants: synthesis and electrochemical properties[J]10.1021/ic060827f ↗
15. Hollow porous carbon microspheres obtained by the pyrolysis of TiO2/poly(furfuryl alcohol) composite precursors[J]10.1016/j.carbon.2006.06.002 ↗
16. Chen. Hollow carbon microspheres prepared from polystyrene microbeads[J]10.1016/j.carbon.2005.09.035 ↗
17. Preliminary studies on burning behavior of polymerthylmethacrylate(PMMA)[J]10.1177/073490402762574749 ↗