Formation of Nanostructured Carbon from [Ni(NH3)6]3[Fe(CN)6]2

Denis P Domonov; Sophiya I Pechenyuk; Alexander T Belyaevskii; Kirill V Yusenko

doi:10.3390/nano10020389

Formation of Nanostructured Carbon from [Ni(NH₃)₆]₃[Fe(CN)₆]₂

Nanomaterials (Basel). 2020 Feb 23;10(2):389. doi: 10.3390/nano10020389.

Authors

Denis P Domonov¹, Sophiya I Pechenyuk¹, Alexander T Belyaevskii¹, Kirill V Yusenko²

Affiliations

¹ Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials of RAS KSC (ICTREMR), Akademgorodok, 26a, Apatity, 184209 Murmansk Region, Russia.
² Bundesanstalt für Materialforschung und -prüfung BAM, Richard-Willstätter Str. 11, D-12489 Berlin, Germany.

Abstract

The products of thermal decomposition in an argon atmosphere of [Ni(NH₃)₆]₃[Fe(CN)₆]₂ as a precursor has been studied. Decomposition products were studied up to 800 °C. Above 600 °C, all coordination bonds in the residues are broken with a formation of Ni₃Fe, Fe, and free carbon with a small admixture of nitrogen. Elementary carbon can be easily separated from metals by treatment with a water solution of hydrochloric acid. Only carbon is responsible for the specific surface of the composite products. The released carbon has a high degree of graphitization and begins to oxidize in air above 500 °C and is completely oxidized above 700 °C.

Keywords: carbon materials; double complex compound; thermal decomposition.