Publications by authors named "Yongkun Xu"

Article Synopsis
  • Studying an acetone sensor is important for developing portable diabetes monitoring systems, as acetone levels can indicate changes in blood sugar.
  • Researchers synthesized NiO/ZnO composites with varying amounts of nickel, finding that 5% Ni provided the best gas sensing response to acetone, being 7.3 times more responsive than pure ZnO at 340 °C.
  • The 5% NiO/ZnO composite also demonstrated excellent selectivity and reproducibility, making it a promising material for future gas sensing applications.
View Article and Find Full Text PDF

Polymer composites have a high potential for applications as tribo-materials exposed to sea water owing to their self-lubrication characteristic and high chemical stability. In the present work, tribological behaviors of polyetheretherketone (PEEK) composites rubbing with stainless steel in sea water were explored using a pin-on-disc tribometer integrated with a potentiostat for electrochemical control. It was demonstrated that further adding 5 vol% hexagonal boron nitride (h-BN) nanoparticles into PEEK reinforced with short carbon fibers (SCF) significantly enhanced the wear resistance.

View Article and Find Full Text PDF