Yang, Weixiang; Tang, Shuihua; Huang, Qiankuan; Zhang, Qian; Tang, Zhen; Yang, Shuang published their research in Journal of Materials Science: Materials in Electronics in 2021. The article was titled 《Highly effective Fe-N-C electrocatalysts toward oxygen reduction reaction originated from 2,6-diaminopyridine》.Quality Control of 2,6-Diaminopyridine The article contains the following contents:
Fe-N-C electrocatalysts have been intensively studied due to their extraordinary catalytic activity toward oxygen reduction reaction (ORR). Here we prepare a Fe-N-C electrocatalyst through cost-effective and nontoxic precursors of 2,6-diaminopyridine (DAP) and FeCl3, where iron ions react with DAP to formed Fe-Nx species first, followed by polymerization and pyrolysis. X-ray diffraction patterns display no obvious Fe2O3 peaks observed in the catalyst as the nominal content of iron addition is less than 10 wt%. XPS spectra indicate that the catalyst has rich pyridinic nitrogen, graphitic nitrogen and Fe-Nx species, which are considered as active sites for ORR. Therefore the catalyst demonstrates an excellent catalytic activity with an onset potential of about 0.96 V, half-wave potential of about 0.84 V, and a limiting c.d. of 5.8 mA cm-2, better than com. Pt/C catalyst in an alk. medium. Furthermore its stability is also much more excellent than that of Pt/C. This work provides a strategy to synthesize universal M-N-C catalysts.2,6-Diaminopyridine(cas: 141-86-6Quality Control of 2,6-Diaminopyridine) was used in this study.
2,6-Diaminopyridine(cas: 141-86-6) belongs to pyridine. Pyridine and its simple derivatives are stable and relatively unreactive liquids, with strong penetrating odours that are unpleasant.Quality Control of 2,6-Diaminopyridine