One-pot functionalization of catalytically derived carbon nanostructures with heteroatoms for toxic-free environment

Maria Brzhezinskaya, Ilya V. Mishakov, Yury I. Bauman, Yury V. Shubin, Tatyana A. Maksimova, Vladimir O. Stoyanovskii, Evgeny Yu. Gerasimov, Aleksey A. Vedyagin

Research output: Contribution to journalArticlepeer-review

Abstract

Nowadays, catalytic methods of utilization of industrial organic wastes are widely developing. Chlorinated hydrocarbons represent the most important class of substances, which should be efficiently converted into value-added product, e.g., carbon nanostructures. Present work demonstrates results of comprehensive investigation and characterization of the electronic state of all elements composing the structure of functionalized carbon nanomaterials obtained via catalytic decomposition of 1,2-C2H4Cl2 and co-substrates (acetonitrile, ethanol, NH4OH) over Ni-Pd alloy using high-resolution synchrotron-based X-ray photoelectron spectroscopy along with NEXAFS spectroscopy. This study is focused on a deeper understanding of reactions proceeding on surface of catalytic particles. Obtained data make it possible for the transition from the description of the nature of chemical reactions to target and controllable tailoring of the molecular structure of carbon nanostructures emergent as a result of complex chemical process realization. The maximum content of chlorine atoms bound to carbon was observed for the sample obtained via decomposition of pure 1,2-C2H4Cl2. Presence of C2H5OH slightly decreases the proportion of Cl-atoms chemically bound to carbon. A more considerable effect was observed when CH3CN vapors were added. The strongest impact on process and defectiveness of the carbon material was ascertained for NH4OH, when the number of C-Cl atoms reached 75.1%.

Original languageEnglish
Article number153055
JournalApplied Surface Science
Volume590
DOIs
Publication statusPublished - 15 Jul 2022

Keywords

  • Core-level spectroscopies
  • Heteroatom-doped carbon nanofibers
  • Metal dusting
  • One-pot functionalization
  • Self-organizing catalyst
  • Toxic free environment

OECD FOS+WOS

  • 2.05 MATERIALS ENGINEERING
  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY
  • 1.04 CHEMICAL SCIENCES

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