Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/102671| Author(s): | Adrián M. T. Silva Bruno F. Machado José L. Figueiredo Joaquim L. Faria |
| Title: | Controlling the surface chemistry of carbon xerogels using HNO3-hydrothermal oxidation |
| Issue Date: | 2009 |
| Abstract: | HNO3-hydrothermal oxidation is used to finely adjust the amount of oxygenated surface groups on a carbon xerogel to a desired degree. The extent of carbon surface functionalization is found to be strongly dependent on the concentration of nitric acid and is described by first order exponential correlations. Significant textural changes are not observed at low concentrations of HNO3, while an increase of the surface area of these materials is observed at high acid concentrations (0.10-0.30 mol l(-1)) at 473 K. |
| Subject: | Ciências Tecnológicas, Engenharia dos materiais Technological sciences, Materials engineering |
| Scientific areas: | Ciências da engenharia e tecnologias::Engenharia dos materiais Engineering and technology::Materials engineering |
| DOI: | 10.1016/j.carbon.2009.02.022 |
| URI: | https://hdl.handle.net/10216/102671 |
| Document Type: | Artigo em Revista Científica Internacional |
| Rights: | restrictedAccess |
| Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 61972.pdf Restricted Access | 986.41 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.