M. Sukumar

7 Questions 4 Answers 0 Followers

Questions related from M. Sukumar

Which is the best catalyst either perovskites or spinels?

Which is best compounds for catalytic applications (Perovskite and Spinel).

20 June 2019 1,080 4 View

What is the unit cell value of Z, ABO3 perovskite in rhombohedral (trigonal) with R3c space group?

And also ABO3 with (Hexagonal) Z?

28 February 2018 6,980 4 View

When increasing doping concentration the lattice constant increase or decrease. Why?

Ex. A1-xBxO3 increase dopant concentration, the lattice constant decrease or increase depends on ionic radii (B-site is smaller then A-site - Lattice constant decrease or B-site is bigger than of...

24 January 2017 4,538 2 View

What is mean by K2NiF4 type structure?

In the perovskite componds like ABO3 and A2BO4.

12 May 2016 4,916 4 View

What is the relationship between wavelength and wavenumber?

In FT-IR Spectroscopy, we are using IR but in a graph using wavenumber.

12 April 2016 4,160 12 View

In XRD peak, when ever doping materials the peaks will be shifted left to right (or) right to left why?

Ex, Sr doped La2CuO4 in XRD peaks will be shifted right to left.

11 February 2016 5,681 2 View

In EDAX analysis, what can be the reason for a repeat of the same peaks?

Ex, ZnO compound in the EDAX spectrum 1-3 kev presents in the Zn and again 8-10 kev presents same Zn? How we are telling small height (intensity) peak also showing presents of compound.

05 January 2016 7,166 3 View