Confinement of Pt NPs by hollow-porous-carbon-spheres <i>via</i> pore regulation with promoted activity and durability in the hydrogen evolution reaction

Abstract

. Furthermore, the overpotential showed no obvious decrease in the long-term durability test, which should be attributed to the confinement of Pt nanoparticles by the well-defined pores in N-HPCSs to avoid the aggregation of Pt nanoparticles during long-term testing.