I want to dope nitrogen from urea in furan resin. But on XPS I can not found nitrogen. I did carbonization at 1000 degree centigrade. whether the temperature effect the doping of nitrogen.
Please see following links
https://www.researchgate.net/publication/325715434_Urea_treatment_of_nitrogen-doped_carbon_leads_to_enhanced_performance_for_the_oxygen_reduction_reaction
https://pubs.acs.org/doi/abs/10.1021/ie400862h
https://pubs.acs.org/doi/10.1021/acs.iecr.0c03771https://pubs.acs.org/doi/10.1021/acs.iecr.0c03771
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