12 Questions 72 Answers 0 Followers
Questions related from Gobinda Behera
I have done a reaction whose optimum time is 10 h. So at what time I should stop the reaction and separate the catalyst and then analyze. When the reaction completes 20 to 30% or at 5 h?
04 April 2013 3,605 5 View
I have synthesized WO3 based materials. The materials show two peaks at lower and higher temperature. I assume that lower temp. peak is for Bronsted acid sites and higher temp. peak is for Lewis...
02 February 2013 3,219 20 View
I have synthesized WO3 promoted vanadium phosphate, but I did not get any peak for WO3 in XRD. This may be due to the amorphous nature of WO3 or it was well dispersed or both. Could anyone make a...
02 February 2013 6,655 10 View
I have synthesized WO3 promoted vanadium phosphate. How can it be proven from UV-vis analysis that the WO3 remains as W, WO3, WOx, WO3 or xH2O? Can anybody help me in this regard or suggest any...
02 February 2013 9,823 4 View
I have synthesized Pd doped Vanadium phosphates. One is Pd(0)-VPO and another is Pd(II)-VPO. If the Pd in Pd(0)-VPO is neutral then there will be no interaction, then how does it lie in the bulk...
02 February 2013 9,851 0 View
As the X-ray fall on the same material what really happens?
12 December 2012 301 3 View
A material containing Mo and V shows Mo5+ / Mo6+ and V5+/V6+ couples. How can i confirmed the presence of redox couple in the materials?
11 November 2012 8,688 5 View
Actually I have prepared Al-VPO. But I did not get any peak of Al in the XRD pattern of Al-VPO. So it might be well dispersed or amorphous? If so then which is the active sites if I'll use it for...
09 September 2012 8,875 13 View
Can mesoporous material be used in dye degradation? I want to do some photocatalysis like dye degradation and wish to know about the materials used in this process.
09 September 2012 6,805 3 View
Some literature describes nanorods as 1D and some other 2D? Can anyone explain?
07 July 2012 817 13 View
Why does the morphology change with the impregnation of the bulk vanadium phosphorous oxide (VPO)? What happens? I have synthesized the Mo-VPO materials in wetness-impregnation method and calcined...
06 June 2012 211 8 View
Generally low angle XRD shows the mesoporosity of the materials. but i dont know how it does this. Can any body explain it?
04 April 2012 8,447 20 View