High dispersion of platinum–ruthenium nanoparticles on the 3,4,9,10-perylene tetracarboxylic acid-functionalized carbon nanotubes for methanol electro-oxidation

Abstract

Due to lots of carboxyl groups introduced uniformly on the carbon nanotube (CNT) surface, platinum-ruthenium nanoparticles were highly dispersed on the 3,4,9,10-perylene tetracarboxylic acid-functionalized CNT surface and showed improved electrochemical properties for methanol electrooxidation.

Bridged β-cyclodextrin-functionalized MWCNT with higher supramolecular recognition capability: The simultaneous electrochemical determination of three phenols

“…However, the intrinsic van der Waals interactions between the pristine tubes make CNTs bundle together on a large scale and are insoluble in routine solvents, resulting in the severe restriction of their applications (Gao et al, 2012). Various approaches have been developed to resolve this problem, such as aggressive oxidation treatment with a HNO 3 -H 2 SO 4 mixture (Wu et al, 2011) and functionalization of the CNTs with polymers (Zhao et al, 2004), DNA (Zhou et al, 2009), and aromatic molecules (Tabakman et al, 2010), etc. However, these methods inevitably cause some structural damage to the CNTs, leads to the loss of their electronic conductivity and corrosion resistance and even results in their poor electrochemical performance due to the presence of dispersing agents in the CNT composite (Zhu et al, 2012).…”

Selenium functionalized carbon for high dispersion of platinum–ruthenium nanoparticles and its effect on the electrocatalytic oxidation of methanol

“…The slight decrease of the I D /I G ratio after selenium functionalization of the carbon may be attributed to the fact that the original defect sites on the carbon surface are covered by the selenium atoms, as reported in literature for the 3,4,9,10-perylene tetracarboxylic acidfunctionalized CNTs [9].…”

“…However, these new carbon materials do not yet meet the target for practical application because the complex synthesis methods are not suitable for industrial production. Another promising route is the use of chemical functional groups, such as carboxylate [6], 1,6-hexamethylenediamine [7], 2-aminophenoxazin-3-one [8], and 3,4,9,10-perylene tetracarboxylic acid [9] to functionalize the surface properties of carbon materials to enhance the dispersion of PtRu NPs, thus increasing their utilization and electrocatalytic activity. In the last two decades, there has been increasing evidence to show that the electrochemical and physical properties of carbon materials are extremely sensitive to heteroatoms, such as N atoms, functionalizing the carbon surface or doping into the carbon 2 structure [10e13].…”

A sensitive glucose biosensor based on the abundant immobilization of glucose oxidase on hollow Pt nanospheres assembled on graphene oxide–Prussian Blue–PTC-NH2 nanocomposite film

“…A derivative of 3,4,9,10-perylenetetracarboxylic dianhydride (PTC-NH 2 ) was obtained by a slight modification of the process reported in the literature [30]. PB nanoparticles were synthesised using a typical co-precipitation method.…”