Palladium nanoparticles supported on graphitic carbon nitride-modified reduced graphene oxide as highly efficient catalysts for formic acid and methanol electrooxidation

Palladium-Based Catalysts as Electrodes for Direct Methanol Fuel Cells: A Last Ten Years Review

“…In this case, the effects caused by the high surface area of graphene were represented in the increased electrocatalytic performance during the methanol electro-oxidation, as well as the catalytic stability in comparison with the corrosion resistance displayed by Pd nanoparticles supported on both, undoped graphene and Vulcan XC-72R carbon black. Another example of the remarkable benefits in the catalytic activity caused by graphenes can be seen in a recent work reported by Zhang et al [21], which prepared hybrid composites between graphitic carbon nitride and reduced graphene oxides as support for Pd nanostructures. These materials displayed high forward peak current densities, which were explained from: (1) the large ECSA; (2) the presence of planar groups that modified interactions between the support and the nanoparticles; and (3) the long-term stability of the composites.…”

Stable and Efficient Nitrogen‐Containing Carbon‐Based Electrocatalysts for Reactions in Energy‐Conversion Systems

“…Although C 1 entities such as CO are widely considered to be poisons for Pt during alcohol electrooxidation processes, esters produced by aldol condensation between alcohol molecules and rapidlyp roduced aldehydes are also proposedt oh ave an adverse effect on Pt. [132] Furthermore, the formation of alloys [130a, 133] and uniform distributions [131,132,134] efficiently avoid the negative effects of CO and esters. [129] For the oxidation of methanol, recently reported materials that exhibit outstanding performance are mainly Pt-based materials, because it is impossible for methanol to participate in aldol condensation reactions.…”

Highly active and durable Pd nanoparticles-porous graphitic carbon nitride composite for electrocatalytic oxygen reduction reaction

“…Graphene, a two dimensional support, has demonstrated as a very good supporting material [31] for dispersion of nanoparticles for their high electro-catalytic activity due to its unique physical and chemical properties [32]. Another two dimensional material, g-C 3 N 4 which has similar graphene like structure, is also a promising support material [33] due to the presence of abundant Lewis acid/base sites for anchoring nanoparticles. The g-C 3 N 4 supported metal/semiconductor nanoparticles composite have gaining attentions as an effective composites for their versatile applications in photocatalysis [34], biosensors [35], electrochemical applications [33,36,37] etc.…”

“…Another two dimensional material, g-C 3 N 4 which has similar graphene like structure, is also a promising support material [33] due to the presence of abundant Lewis acid/base sites for anchoring nanoparticles. The g-C 3 N 4 supported metal/semiconductor nanoparticles composite have gaining attentions as an effective composites for their versatile applications in photocatalysis [34], biosensors [35], electrochemical applications [33,36,37] etc. The conductivity of the carbon nitride support increases with decreasing concentration of nitrogen in support, and hence enhanced electrochemical ORR performances were reported by several groups [36,38e40].…”