Hierarchically structured nanoporous carbon tubes for high pressure carbon dioxide adsorption

• Julia Patzsch,
• Deepu J. Babu and
• Jörg J. Schneider

Beilstein J. Nanotechnol. 2017, 8, 1135–1144, doi:10.3762/bjnano.8.115

• synthesized by a combination of the Stoeber process and the use of electrospun macrosized polystyrene fibres as structure directing templates. The obtained carbon tubes have a macroporous nature characterized by a thick wall structure and a high specific surface area of approximately 500 m²/g resulting from

• tubes to be obtained. To obtain these materials, a polymer was employed and used as the carbon source and template to mold a spherical structure of silica particles obtained by the Stoeber process. After a carbonization step, a second thermal treatment was employed to obtain either SiC tubes or a

• precursors. The silica@polystyrene green body composite (2) is obtained by the addition of silica particles [38] via the Stoeber process. The sample is subsequently heat treated to obtain the silica@carbon composite (3). Composite 3 is the starting composition and morphology for the synthesis of the carbon

Template-directed synthesis and characterization of microstructured ceramic Ce/ZrO₂@SiO₂ composite tubes

• Jörg J. Schneider and
• Meike Naumann

Beilstein J. Nanotechnol. 2014, 5, 1152–1159, doi:10.3762/bjnano.5.126

• the surface of the silica host structure and determination of the O, Zr and Ce elemental distribution with nm precision. Keywords: electrospinning; exotemplating; nanostructured solid solution; sol–gel chemistry; Stoeber process; ternary oxide; Introduction Ceria, CeO2, is well-known for its unique

• combination of electrospinning and exotemplating leading to hollow CeO2/ZrO2@SiO2 composite tubes. Firstly, after electrospinning of polystyrene fibers, the fibers were covered by an exotemplating step with a sol solution containing monodisperse silica particles obtained from a Stoeber process. This is