Local electrocatalytic activity of PtRu supported on nitrogen-doped carbon nanotubes towards methanol oxidation by scanning electrochemical microscopy

Abstract

Nitrogen-doped carbon nanotubes (NCNTs) were synthesized by treating HNO3-oxidized carbon nanotubes (CNTs) in NH3 flow at different temperatures. PtRu nanoparticles were decorated over NCNTs. The PtRu catalysts were prepared by...

Selective Electrochemical Production of Hydrogen Peroxide from Reduction of Oxygen on Mesoporous Nitrogen Containing Carbon

“…[28][29][30] They are sustainable and environmental friendly, contain large surface area, ordered structure, porosity, cost effectiveness, high conductivity, high abundance in earth and defects which provide enhanced activity. [29][30][31][32] By virtue of these fascinating properties, several carbon based catalysts with different morphology, porosity and heteroatom doping are being explored as an electrocatalyst for high yield production of H 2 O 2 . [9] In this regards, heteroatom doping into carbon framework is an efficient way to improve the activity by creation of several defects and thus tuning the electronic properties.…”

Ultrafine Rh nanocrystals grown onto a boron and nitrogen codoped carbon support with a horn-shaped structure for highly efficient methanol oxidation

“…The B and N contents in the Rh/BNCNH framework are determined to be 1.5 and 2.7 at%, which are similar to those reported for B-doped or N-doped nanocarbon materials. 36,37 Fig. 4a reveals different B-related energy peaks centered at 191.8 and 192.8 eV, which are linked to the B-C3/B-N and B-C-O groups.…”

Low-temperature N-anchored ordered Pt3Co intermetallic nanoparticles as electrocatalysts for methanol oxidation reaction

“…Several recent studies demonstrated that the Pt-M nanoparticles with ordered structures showed promising improvement in the activity and stability of the catalyst. 25,26 For a bimetallic Pt-M alloy system (M = Ru, 27,28 Ni, 29 Cu, 30,31 Pb, 32 Co, 33,34 Sn, 35 etc. ), the addition of M can promote the adsorption and activation decomposition of water at a lower potential and provide adsorbed hydroxyl groups (OH ads ), which serve as oxidants to transform the toxic species (CO ads ) into CO 2 by oxidizing.…”