Ultrafine MoP Nanoparticle Splotched Nitrogen-Doped Carbon Nanosheets Enabling High-Performance 3D-Printed Potassium-Ion Hybrid Capacitors.

ABSTRACT: Size engineering is deemed to be an adoptable method to boost the electrochemical properties of potassium-ion storage; however, it remains a critical challenge to significantly reduce the nanoparticle size without compromising the uniformity. In this work, a series of MoP nanoparticle splotched nitrogen-doped carbon nanosheets (MoP@NC) is synthesized. Due to the coordinate and hydrogen bonds in the water-soluble polyacrylamide hydrogel, MoP is uniformly confined in a 3D porous NC to form ultrafine nanoparticles which facilitate the extreme exposure of abundant three-phase boundaries (MoP, NC, and electrolyte) for ionic binding and storage. Consequently, MoP@NC-1 delivers an excellent capacity performance (256.1 mAh g^-1 at 0.1 A g^-1) and long-term cycling durability (8

SUBMITTER: Zong W 

PROVIDER: S-EPMC8025015 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature