Subject(s)
Hemoperitoneum/surgery , Lacerations/surgery , Laparoscopy , Urinary Bladder/injuries , Urinary Bladder/surgery , Wounds, Nonpenetrating/surgery , Accidental Falls , Adult , Female , Hemoperitoneum/diagnosis , Hemoperitoneum/etiology , Humans , Lacerations/diagnosis , Lacerations/etiology , Rupture , Tomography, X-Ray Computed , Wounds, Nonpenetrating/complications , Wounds, Nonpenetrating/diagnosisABSTRACT
This paper describes a method for size-controlled synthesis of Pt nanoparticles and their attachment to the sidewalls of multiwall carbon nanotubes (CNTs) by self-regulated reduction of sodium n-dodecyl sulfate (SDS), without surface pretreatment. The size of the Pt nanoparticles is controlled by adjusting the concentration of SDS. When Pt/CNTs are heated to 500 degrees C in N2 atmosphere, Pt nanochains are formed on the CNTs; some of these nanochains contain small islands. Electrochemical measurements confirm that the electroactivities of the Pt/CNT nanocatalysts increase with a decrease in the size of the Pt nanoparticles. Additionally, comparing with the heated Pt/CNT nanocatalysts containing smooth Pt nanochains, the heated Pt/CNT nanocatalysts containing Pt nanochains with small Pt islands show higher electrocatalysis activities and stability.
