Normally, the base catalyst complete its reactions within 1 hour where as the acid catalyst tends to finish within 2 hours during transesterification. What mechanism makes the base catalysts react faster than solid acid catalyst ?
I have electrospun pure ABS solution and measured the diameter and it was measured as 500s nm averagely. But surprisingly the fiber diameter decreases to 100s nm averagely while loading of MWCNT....
08 September 2018 2,816 1 View
we have light scattering instrument of Malvern Nano ZS series. I need to do a studies on change in Molecular weight of the sample. But im unable to perform it. I have seen a drop down menu in the...
05 June 2018 7,855 0 View
We have Malvern DLS Zetasizer instrument in our lab. I need to determine the size analysis by DLS method. I need to input the properties like RI and absorption Coeff of the material. Is there any...
09 October 2017 2,754 0 View
I have collected some waste cooking oil from hotels and it contains lots of left over fried items and loaded with carbon (black soot). I have to use it for my research work but finding hard in...
08 September 2017 6,326 0 View
After a novel synthesis method of a compound, I have found it as layered structure when I observed in SEM. This material was not having the layer structure before synthesizing it with the novel...
07 August 2017 5,195 5 View
I'm trying to impregnate the nanoparticles in micron size powder. Firstly I was trying with wet impregnation method. I guess the proper doping is not happening. Will hydrothermal or solvothermal...
05 June 2017 3,867 0 View
i have synthesised magnetic material Fe3O4 by co-ppt method. Before calcination, the magnetic property was showing but after calcination above 500 degree C , the magnetic property is losing....
01 February 2017 5,426 6 View
Researcher working on catalyst for transesterification of biodiesel please suggest me the top rated journal with high impact factor to be published.
31 December 2016 6,460 1 View
I'm trying to coat the Cerium Zirconium oxide NPs on copper tube. I have tried brush coating and dipped coating but its not sticking on the copper tube. Any suggestion for better coating, Please...
31 December 2016 9,144 1 View
if anyone here read the paper about eggshell and reported the SEM image as flower-like structure then please let me know the name of the paper.
31 December 2016 7,902 0 View
Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.
07 August 2024 8,782 3 View
Dear readers, Thanks for your attention. I am wondering about the health economic problem of quantifying the value of interventions which a) prevent, b) improve symptom profile and c) ultimately...
05 August 2024 3,246 1 View
Metal-containing heterogeneous catalysts often need to be calcined before reduction, so what are some examples of catalysts that perform better without calcination? What is the reason and how many...
05 August 2024 909 2 View
I am attempting to conjugate PEG to an amino acid at the C-terminus, for the purposes of producing nanoparticles. I have been told that PEG modified with amine groups can be used for this purpose,...
31 July 2024 2,033 1 View
Hi, researchers, Is it possible to use a safer acid instead of monochloroacetic acid to convert bacterial cellulose to carboxymethyl cellulose?
29 July 2024 4,570 0 View
I am currently performing cell-free DNA (cfDNA) extraction from plasma using an in-house developed kit that employs silica-coated magnetic beads. My protocol works effectively with plasma obtained...
28 July 2024 3,559 0 View
FYI Catalyst is MFI zeolite Si/Al = 140,25.40.11.5,15 I am using this catalyst to study methanol to DME conversion
25 July 2024 2,486 2 View
I have been looking for the principle of Cysteine-carbazole-sulfuric acid reaction in research papers and books, but couldn't find it. This reaction is mainly used for the quantification of...
23 July 2024 3,891 0 View
Sulfuric acid has changed color to yellow.
16 July 2024 6,964 0 View
Dear all, We've been doing transesterification with our raw materials - a mixture of pairing oil (which is said to came from the skin part of a coconut) and crude coconut oil. During the addition...
14 July 2024 2,200 0 View