I have synthesised Au-Ag nanoparticles. I want to determine the composition of Au & Ag separately in the bulk and at the surface. How effective would it be to use STEM EDX for this?
I have synthesized Au-Ag alloy NPs in colloidal form by reducing HAuCl4 and AgNO3 using NABH4 with ATP as capping agent. I want to add a support, Silica MCM-41 to the prepared NPs. What should be...
05 June 2018 4,612 6 View
I have synthesized pure Ag, pure Au and AuAg alloy ( for e.g. Au25Ag75) nanoparticles (NPs). Solvent used is milli-Q water. The NPs are presently in colloidal form. I have observed a color change...
05 June 2018 2,127 4 View
I have synthesized Au-Ag bimetallic NPs using millipore water (100 ml) as solvent and ATP as a capping agent. The precursors used for metals ar HAuCl4 and AgNO3. Since the ions of these two metals...
05 June 2018 6,666 2 View
I have synthesized Au-Ag alloy nanoparticle without any catalyst support. Currently the alloy is in suspension form. I need to anneal the sample at higher temperatures. Can you suggest how the...
04 May 2018 4,682 5 View
I want to measure only the bulk composition of a bimetallic(Au-Ag) nanoparticle excluding its surface composition. Can I use TEM for that?
02 March 2018 2,504 4 View
What are the emerging trends and opportunities for STEM education and careers in the online space?
10 August 2024 507 0 View
I am using Rhodamine6G as gain medium and silver nanoparticles as scatterers on a microscope slide and laser input 532 nm comes from above.
09 August 2024 9,894 2 View
EDX analisys
31 July 2024 5,947 2 View
I have done sem eds analysis for Hydroxyapatite and zeolite NaP composites, but no Na and Ca elements were detected at a 500× magnification, and there should be no Ti elements, and at a 2000×...
29 July 2024 6,274 2 View
Here, I have used Ag/AgCl as reference electrode and 0.5M KOH.
29 July 2024 4,538 3 View
Do You Believe VP Harris Would Show Empathy to Tech Companies in Her Administration as POTUS? I ask in light of the fact that, the ACP was not re-funded this round. So many and businesses need...
24 July 2024 4,732 3 View
Thanks
22 July 2024 1,143 3 View
Suggest the best and shortest route for the chemical synthesis and and green synthesis of magnetite(Fe3O4) The chemical synthesis should contain the least dangerous chemicals along with full...
21 July 2024 2,476 2 View
Organic Synthesis. My student has been trying iodination of arenes (our goal is to iodinate p-phenylenediamine) following these literature procedures: 1. Synthesis 2004, No. 11, 1869-1873 using...
16 July 2024 6,630 1 View
I make polycrystalline diamond with tape casting followed by HPHT sintering. When i sintered the samples up till May, the sintering was good. When i sintered the samples in June and July at the...
16 July 2024 3,212 5 View