Palladium Nanoparticles Supported on Nitrogen and Sulfur Dual-Doped Graphene as Highly Active Electrocatalysts for Formic Acid and Methanol Oxidation
Citations Over TimeTop 10% of 2016 papers
Abstract
Optimized designing of highly active electrocatalysts has been regarded as a critical point to the development of portable fuel cell systems with high power density. Here we report a facile and cost-effective strategy to synthesis of ultrafine Pd nanoparticles (NPs) supported on N and S dual-doped graphene (NS-G) nanosheets as multifunctional electrocatalysts for both direct formic acid fuel cell and direct methanol fuel cell. The incorporation of N and S atoms into graphene frameworks is achieved by a thermal treatment process, followed by the controlled growth of Pd NPs via a solvothermal approach. Owning to the unique structural features as well as the strong synergistic effects, the resulting Pd/NS-G hybrid exhibits outstanding electrocatalytic performance toward both formic acid and methanol electro-oxidation, such as higher anodic peak current densities and more exceptional catalytic stability than those of Pd/Vulcan XC-72R and Pd/undoped graphene catalysts. These findings open up new possibility in the construction of advanced Pd-based catalysts, which is conducive to solving the current bottlenecks of fuel cell technologies.
Related Papers
- → Oxygen reduction on a Pt70Ni30/C electrocatalyst prepared by the borohydride method in H2SO4/CH3OH solutions(2005)48 cited
- → Catalytic conversion of formic acid to methanol with Cu and Al under hydrothermal conditions(2012)13 cited
- → Study of Catalytic Reduction of Formic Acid to Methanol under Mild Hydrothermal Conditions(2011)1 cited
- Thermodynamic analysis for the oxidation of methanol and its derivatives(2005)
- → Methanol as the Modifier of Nanostructured Pt Films for Enhenced Electrocatalytic Methanol Oxidation Reaction Electrocatalysis(2018)