Dr. JeFreda R. Brown is a financial consultant, Certified Financial Education Instructor, and researcher who has assisted thousands of clients over a more than two-decade career. She is the CEO of ...

Characterization techniques, including scanning electron microscopy (SEM), X-ray diffraction (XRD), N 2 adsorption–desorption isotherms, X-ray photoelectron spectroscopy (XPS), and Fourier transform ...