TY - JOUR
T1 - Preparation of platinum/carbon nanotube in aqueous solution by femtosecond laser for non-enzymatic glucose determination
AU - Chang, Han Wei
AU - Tsai, Yu Chen
AU - Cheng, Chung-Wei
AU - Lin, Cen Ying
AU - Wu, Ping Han
PY - 2013/4/30
Y1 - 2013/4/30
N2 - Multiwalled carbon nanotubes (MWCNTs) supported platinum (Pt) nanoparticles were fabricated in aqueous solution without reducing agents by femtosecond laser. The surface morphological, compositional, and structural characterizations of the prepared Pt/MWCNT were examined using scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. The results showed that the Pt nanoparticles with about 5-10 nm in diameter were well dispersed on the surface of MWCNTs. Cyclic voltammetry was employed to investigate the electrocatalytic activity toward the electrooxidation of glucose in alkaline solution at the Pt/MWCNT. The Pt/MWCNT modified glassy carbon electrode displayed high electrocatalytic ability for the direct electrochemical oxidation of glucose in alkaline solution. At an applied potential of -0.25 V vs. Ag/AgCl 3 M KCl, the Pt/MWCNT modified electrode exhibited a sensitivity of 0.106 A M-1 cm-2 with a linear range up to 2.4 mM. This proposed glucose sensor also showed good abilities of anti-interference to acetaminophen, uric acid, fructose, and ascorbic acid.
AB - Multiwalled carbon nanotubes (MWCNTs) supported platinum (Pt) nanoparticles were fabricated in aqueous solution without reducing agents by femtosecond laser. The surface morphological, compositional, and structural characterizations of the prepared Pt/MWCNT were examined using scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. The results showed that the Pt nanoparticles with about 5-10 nm in diameter were well dispersed on the surface of MWCNTs. Cyclic voltammetry was employed to investigate the electrocatalytic activity toward the electrooxidation of glucose in alkaline solution at the Pt/MWCNT. The Pt/MWCNT modified glassy carbon electrode displayed high electrocatalytic ability for the direct electrochemical oxidation of glucose in alkaline solution. At an applied potential of -0.25 V vs. Ag/AgCl 3 M KCl, the Pt/MWCNT modified electrode exhibited a sensitivity of 0.106 A M-1 cm-2 with a linear range up to 2.4 mM. This proposed glucose sensor also showed good abilities of anti-interference to acetaminophen, uric acid, fructose, and ascorbic acid.
KW - Femtosecond laser
KW - Glucose
KW - Multiwalled carbon nanotubes
KW - Platinum nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=84876712235&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2013.03.115
DO - 10.1016/j.snb.2013.03.115
M3 - Article
AN - SCOPUS:84876712235
VL - 183
SP - 34
EP - 39
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
ER -