Multiphase graphitisation of carbon xerogels and its dependence on their pore size. (November 2019)
- Record Type:
- Journal Article
- Title:
- Multiphase graphitisation of carbon xerogels and its dependence on their pore size. (November 2019)
- Main Title:
- Multiphase graphitisation of carbon xerogels and its dependence on their pore size
- Authors:
- Canal-Rodríguez, María
Ramírez-Montoya, Luis A.
Villanueva, Sara F.
Flores-López, Samantha L.
Angel Menéndez, J.
Arenillas, Ana
Montes-Morán, Miguel A. - Abstract:
- Abstract: Six carbon materials were obtained from the carbonisation of resorcinol/formaldehyde xerogels. All carbon xerogels (CXs) showed essentially the same microporosity but differed in their meso- or macroporosity, covering a wide interval of average meso- or macropore sizes from 10 nm to 3000 nm. The graphitisation of the CXs was heterogeneous, as detected by X-ray diffraction. The relative amount of the amorphous, turbostratic and graphitic carbon phases on the graphitised xerogels was different depending on the pore size of the CXs. Crystalline parameters such as interlayer spacings (d002 ) and crystallite sizes along the c-axis (Lc ) were calculated from the different contributions and were also found to depend on the pore size of the parent CXs. Transmission electron microscopy and Raman spectroscopy analyses helped to identify nanostructures that could be assigned to the three carbon components of the graphitic xerogels. The occurrence of most of these nanostructures was compatible with a solid-phase transformation of the amorphous precursor. The electrical conductivity of the graphitised xerogels also depended on their original pore size, with values ranging from 2 S cm −1 for the materials with a 10 nm pore size to 18 S cm −1 for the materials with bigger pore sizes. Graphical abstract: Image 1
- Is Part Of:
- Carbon. Volume 152(2019)
- Journal:
- Carbon
- Issue:
- Volume 152(2019)
- Issue Display:
- Volume 152, Issue 2019 (2019)
- Year:
- 2019
- Volume:
- 152
- Issue:
- 2019
- Issue Sort Value:
- 2019-0152-2019-0000
- Page Start:
- 704
- Page End:
- 714
- Publication Date:
- 2019-11
- Subjects:
- Carbon -- Periodicals
Carbone -- Périodiques
Koolstof
Toepassingen
Electronic journals
546.681 - Journal URLs:
- http://www.sciencedirect.com/science/journal/00086223 ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.carbon.2019.06.057 ↗
- Languages:
- English
- ISSNs:
- 0008-6223
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 3050.991000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 17109.xml