Highly dispersed Pt nanoparticles supported on manganese oxide–poly(3,4-ethylenedioxythiophene)–carbon nanotubes composite for enhanced methanol electrooxidation

Hydrogen co-reduction synthesis of PdPtNi alloy nanoparticles on carbon nanotubes as enhanced catalyst for formic acid electrooxidation

“…4D and F shows the high resolution spectra of Pt 4f regions in the PdPt/ MWCNT and PdPtNi/MWCNT catalysts. The Pt 4f spectra of both catalysts display the doublet signals consisting of a lowenergy band (Pt 4f 7/2 , 71.3 eV) and a high-energy band (Pt 4f 5/2 , 74.6 eV) [38,39]. Interestingly, the obvious shift (0.2 eV) of Pt peaks to lower binding energies can be also observed in the PdPtNi/MWCNT catalyst.…”

Bamboo shaped carbon nanotube supported platinum electrocatalyst synthesized by high power ultrasonic-assisted impregnation method for methanol electrooxidation and related density functional theory calculations

“…Two irreversible current peaks for methanol oxidation can be observed at all the electrodes. The forward scan peak (peak 1) at around 0.75 V is attributed to the methanol electrooxidation and the back scan peak (peak 2) at about 0.48 V corresponds to the removal of the adsorbed carbonaceous species (COad) [53]. The current density of methanol oxidation on the Pt/BCNT electrocatalysts in the forward scan is~0.31 mA cm À2 Pt and in the backward scan is 0.22 mA cm À2 Pt, much higher than those on the Pt/MWNT electrocatalysts.…”

Highly efficient and stable electrooxidation of methanol and ethanol on 3D Pt catalyst by thermal decomposition of In 2 O 3 nanoshells

“…However, the presence of micropores (less than 1 nm in diameter) in carbon black limits its use as a catalyst support because the catalytic nanoparticles get trapped in the micropores and become electrochemically inaccessible [20,21] . Now, it is found that certain metal oxides, such as MoO 3 , SnO 2 , and WO 3 can promote the activity and CO-poisoning tolerance of Pt-based catalysts for alcohol electrooxidation through synergetic interaction with Pt [22] . The perfect dispersion of Pt nanoparticles and the stability of combination of Pt nanoparticles and substrates can improve effectively the electrocatalytic activity.…”