Not Accepting Doctoral Students
Indium–tin oxide (ITO) nanoparticles, 6.1 ± 0.8 nm in diameter, were synthesized by the Murray Group, using a hot injection method. As reported in Langmuir, after reaction with 3-aminopropyldimethylethoxysilane to replace the initial oleylamine and oleic acid capping ligands, the aminated nanoparticles were rendered electroactive by functionalization with ferrocenoyl chloride. The nanoparticle color changed from blue-green to light brown, and the nanoparticles became more soluble in polar solvents, notably acetonitrile.
The nanoparticle diffusion coefficient (D = 1.0 × 10-6 cm2/s) and effective ferrocene concentration (C = 0.60 mM) in acetonitrile solutions were determined using ratios of DC and D1/2C data measured by microdisk voltammetry and chronoamperometry. The D result compares favorably to an Einstein–Stokes estimate (2.1 × 10-6 cm2/s), assuming an 8 nm hydrodynamic diameter in acetonitrile (6 nm for the ITO core plus 2 nm for the ligand shell). The ferrocene concentration result is lower than anticipated (ca. 1.60 mM) based on a potentiometric titration of the ferrocene sites with Cu(II) in acetonitrile. Cyclic voltammetric data indicate tendency of the ferrocenated nanoparticles to adsorb on the Pt working electrode.
The American Chemical Society has named Carolina Chemistry professors Royce Murray and Joseph DeSimone as ACS Fellows. The new class of ninety-six fellows will be honored at the society's fall national meeting in Philadelphia this August. The ceremony will be hosted by ACS Immediate Past-President Nancy B. Jackson.
"ACS is especially proud to honor these chemists, who have given so much to the community and the profession," said Jackson in announcing the 2012 class of ACS Fellows. "They are leaders whose work is having a lasting beneficial impact, not just on science but also on the ACS community." Their contributions include outstanding and creative scientific research, superior achievements in the teaching and learning of chemistry, managerial excellence, and volunteer service through meetings and communication with the public, she noted.
The fellows program began in 2009 as a way to recognize and honor ACS members for outstanding achievements in and contributions to science, the profession, and ACS.