1 research outputs found
Improving Oxygen Reduction Reaction Performance of Pt by a N‑Doping Strategy and Inducing Tensile Strain of Nanoparticles
The oxygen reduction reaction (ORR)
plays a key role
in improving
the efficiency of energy-storage devices, and Pt nanoparticles anchored
in carbon support are one of the most efficient electrocatalysts for
ORR. However, Pt falling off the carbon carrier seriously affects
the catalytic performance. In this work, we report an innovative Lewis-acid-doping
strategy to design an efficient N-doping Pt/N/C catalyst, the special
adsorption mechanism of the Pt precursor enhances the ability of the
catalyst to anchor N atom, as well as the binding force between Pt
nanoparticles and the substrate. N-doping within Pt lattice induces
tensile strain and enhances the ORR activity and stability of the
catalyst, the half-wave potential of Pt/N/C exhibits a positive shift
of 50 mV relative to that of commercial JM Pt/C. This work presents
an innovative N-doping strategy to prepare efficient electrocatalysts
with defects, indicating a promising potential for the practical applications