Which technique can be used for studying crystal structures of nanomaterials?Question 1Answera.AFMb.XRDc.SEMd.FTIRe.TEM

Several techniques can be used for studying crystal structures of nanomaterials. Here is a brief explanation of each:

a. AFM (Atomic Force Microscopy): This technique can provide a three-dimensional surface profile. It can be used to study the surface properties of nanomaterials, but it does not provide information about the crystal structure.

b. XRD (X-ray Diffraction): This is one of the most commonly used techniques for studying crystal structures. It involves directing X-rays at a material and then measuring the angles and intensities of the diffracted rays to determine the structure.

c. SEM (Scanning Electron Microscopy): This technique is used to study the surface and composition of materials at a high magnification. It can provide information about the morphology and size of nanomaterials, but not about the crystal structure.

d. FTIR (Fourier Transform Infrared Spectroscopy): This technique is used to obtain an infrared spectrum of absorption or emission of a solid, liquid or gas. It can provide information about the chemical bonds in a material, but not about the crystal structure.

e. TEM (Transmission Electron Microscopy): This technique can provide detailed information about the internal structure of nanomaterials, including crystal structure, at a very high resolution.

So, to study the crystal structures of nanomaterials, XRD and TEM would be the most appropriate techniques.