Publications by authors named "Yingliang Cheng"
Metal-organic frameworks (MOFs) with inherent porosity, controllable structures, and designable components are recognized as attractive platforms for designing advanced electrodes of high-performance potassium-ion batteries (PIBs). However, the poor electrical conductivity and low theoretical capacity of many MOFs lead to inferior electrochemical performance. Herein, for the first time, a confined bismuth-organic framework with 3D porous matrix structure (Bi-MOF) as anode for PIBs via a facile wet-chemical approach is reported.
View Article and Find Full Text PDFArticle Synopsis
- The study addresses the limitations of carbon anodes in potassium-ion batteries (PIBs) due to slow potassium transport, highlighting the need for better ion/electron transfer channels.
- Researchers developed cross-linked porous carbon nanofibers with modified oxygen-containing functional groups, which resulted in improved charge/discharge rate capabilities and excellent cycling stability.
- The novel anode showcased superior performance metrics, including high power density in a full cell configuration, and demonstrated effective potassium storage through enhanced ion transport and adsorption sites provided by carboxyl groups.
Dual-Carbon Electrode-Based High-Energy-Density Potassium-Ion Hybrid Capacitor.
ACS Appl Mater Interfaces
February 2021
Potassium-ion hybrid capacitors (KIHCs) have attracted growing attention due to the natural abundance and low cost of potassium. However, KIHCs are still limited by sluggish redox reaction kinetics in electrodes during the accommodation of large-sized K. Herein, a starch-derived hierarchically porous nitrogen-doped carbon (SHPNC) anode and active carbon cathode were rationally designed for dual-carbon electrode-based KIHCs with high energy density.
View Article and Find Full Text PDF