2011
DOI: 10.1016/j.jelechem.2011.01.036
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Carbon nanotube decorated with silver nanoparticles via noncovalent interaction for a novel nonenzymatic sensor towards hydrogen peroxide reduction

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Cited by 97 publications
(35 citation statements)
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“…The results were compared to those obtained with a bare GCE. Hydrogen peroxide can be electrochemically determined by reduction [25][26][27][28][29] or oxidation [30][31][32][33][34]. In this study, the best results (see discussion below) were obtained by oxidation at an applied potential (E app ) of +1.5 V.…”
Section: B Optimization Of Experimental Conditions For H 2 O 2 Detecmentioning
confidence: 78%
“…The results were compared to those obtained with a bare GCE. Hydrogen peroxide can be electrochemically determined by reduction [25][26][27][28][29] or oxidation [30][31][32][33][34]. In this study, the best results (see discussion below) were obtained by oxidation at an applied potential (E app ) of +1.5 V.…”
Section: B Optimization Of Experimental Conditions For H 2 O 2 Detecmentioning
confidence: 78%
“…EDS element analysis of Ag-MWCNTs indicated that approximately 1.43% (weight percent) of the total analysis area could be attributed to Ag, presumably corresponding to the Ag nanoparticles on the Ag-MWCNTs ( Figure 2D); the presence of copper, chromium, and tantalum elements could be attributed to the use of 300 mesh-sized copper grids coated with carbon film. 17 Silicon present in the sample may have originated from impurities included in TEM substrates or from artifacts during sample preparation. 17,21,22 In addition, structural validation of the Ag and carbon nanomaterials was assessed via examination of Ag-MWCNTs and MWCNTs-COOH XRD patterns, which indicate two major diffraction peaks at 2θ=26.1° and 42.6° in the (002) and (110) planes, respectively ( Figure 2E).…”
Section: Discussionmentioning
confidence: 99%
“…17 Silicon present in the sample may have originated from impurities included in TEM substrates or from artifacts during sample preparation. 17,21,22 In addition, structural validation of the Ag and carbon nanomaterials was assessed via examination of Ag-MWCNTs and MWCNTs-COOH XRD patterns, which indicate two major diffraction peaks at 2θ=26.1° and 42.6° in the (002) and (110) planes, respectively ( Figure 2E). The broad diffraction peak of the (002) plane can be correlated with the structural ordering of MWCNT, 23 while diffraction peaks observed at 2θ=38.08°, 44.3°, 64.46°, and 77.36° correlate to the (111), (200), (220), and (311) planes, respectively -all standard features for a face-centered cubic silver crystalline structure.…”
Section: Discussionmentioning
confidence: 99%
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“…Therefore, the number of studies on different parameters is increased. Meanwhile, the exceptional electrical, chemical, and mechanical characters [9,10] made carbon nanotubes (CNTs) widely used in the construction of chemical sensors and biosensors [11,12], especially in the field of supporting materials [13]. The high surface area of CNTs made it possible to load nanoparticles to enhance their properties [8,[11][12][13].…”
Section: Introductionmentioning
confidence: 99%