RT Journal Article
T1 Control of the properties of carbon nanotubes synthesized by CVD for application in electrochemical biosensors
A1 Bustero, Izaskun
A1 Ainara, García
A1 Isabel, Obieta
A1 Roberto, Muñoz
A1 Inés, Rincón
A1 Amaya, Arteche
AB Interest in carbon nanotubes (CNT) has grown at a very rapid rate in the last decade. Their interesting physical and chemical properties open attractive possibilities in many application areas. These properties depend on the process conditions during synthesis and on subsequent purification steps. Recent studies have demonstrated that CNT can promote the electron transfer of biomolecules. These exceptional properties make them attractive for use in electrochemical biosensors. Multi walled nanotubes have been synthesized by the Chemical Vapor Deposition (CVD) method using methane as a carbon source and Ni-Al 2O3-SiO2 as the catalyst. The influence of the variation of certain reaction parameters such as feed gas composition, catalyst mass, temperature and reaction time in the yield of the CVD process has been established. In addition, the structural and chemical characteristics of the CNTs have been studied and a purification process to eliminate the catalyst and amorphous carbon has been developed that involves a gaseous oxidative process and acid treatment. The efficiency of the purification step has been determined by analytical techniques. Atomic force microscopy, Raman scattering, thermogravimetric analysis, inductively coupled plasma atomic spectroscopy are the characterization techniques employed in this work.
SN 0026-3672
YR 2006
FD 2006-01
LK https://hdl.handle.net/11556/4044
UL https://hdl.handle.net/11556/4044
LA eng
NO Bustero , I , Ainara , G , Isabel , O , Roberto , M , Inés , R & Amaya , A 2006 , ' Control of the properties of carbon nanotubes synthesized by CVD for application in electrochemical biosensors ' , Mikrochimica Acta , vol. 152 , no. 3-4 SPEC. ISS. , pp. 239-247 . https://doi.org/10.1007/s00604-005-0442-4
DS TECNALIA Publications
RD 29 sept 2024