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Questions related from Alain Celzard
Most carbon phases are anisotropic, and therefore their Raman spectra are sensitive to polarisation of light. Besides, the gratings don't have exactly the same response when light is polarised or...
03 March 2015 9,405 7 View
Many authors reported chemisorption of hydrogen on nickel, but they said nothing about the conditions they used. But this kind of experiment is less obvious as it seems. What are the best...
02 February 2015 9,281 5 View
When looking for experimental conditions leading to the most beautiful Raman spectra of disordered carbons, I realised that the grating had a somewhat high influence on the results. Let me...
11 November 2014 6,632 21 View
Some books can be fully downloaded for free as pdf files, after looking for them through well-known web search engines. Others not, whereas they should be extremely useful. Are there any websites...
10 October 2014 4,954 9 View
I have a Horiba XPlora Raman spectrometer equipped with 3 lasers: 532, 638 and 785 nm. 532 nm burns the wood samples, even at 0.1% of its power, and gives unexploitable spectra. 638 nm laser may...
06 June 2014 1,943 21 View
There are hundreds of papers about Raman spectroscopy of carbon materials, whether the latter are graphites, disordered or diamond-like carbons, CNTs, graphene, etc. Therefore, to avoid missing...
02 February 2014 4,461 9 View
I just purchased an induction furnace and a cooling unit. The cooling unit must be filled by water for cooling the induction spire and the power supply of the induction furnace, but what should be...
01 January 2014 1,134 7 View
Spirals of fused silica have been extensively used in old thermobalances, because of the extremely low expansion coefficient of silica. Explanations or links towards how these objects were...
12 December 2013 7,711 8 View
Please provide details, as the process is known but the nature (which metal salts ?) and the concentrations of the baths to which the (formerly insulating) plastic surface should be submitted...
12 December 2013 3,531 8 View
