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Partner: Marianna Gniadek

University of Warsaw (PL)
Recent publications
1.Pietrzyk P., Borowska E.♦, Hejduk P.♦, Camargo Cury B.♦, Warczak M.♦, Nguyen Thu P.♦, Pregowska A., Gniadek M.♦, Szczytko J.♦, Wilczewski S.♦, Osial M., Green composites based on volcanic red algae Cyanidiales, cellulose, and coffee waste biomass modified with magnetic nanoparticles for the removal of methylene blue, Environmental Science and Pollution Research, ISSN: 1614-7499, DOI: 10.1007/s11356-023-26425-3, pp.1-15, 2023
2.Warczak M.♦, Gniadek M.♦, Hermanowski K.♦, Osial M., Well-defined polyindole–Au NPs nanobrush as a platform for electrochemical oxidation of ethanol, Pure and Applied Chemistry, ISSN: 1365-3075, DOI: 10.1515/pac-2020-1101, Vol.93, No.4, pp.497-507, 2021
Keywords:

ChemRAWN,electrocatalysis,electrochemical oxidation,ethanol,gold nanoparticles,nanobrush,nanowires,polyindole

Affiliations:
Warczak M.-Institute of Physical Chemistry, Polish Academy of Sciences (PL)
Gniadek M.-University of Warsaw (PL)
Hermanowski K.-other affiliation
Osial M.-IPPT PAN
3.Jarząbek D.M., Harvey C.♦, Levintant-Zayonts N., Wojciechowski T.♦, Gniadek M.♦, Krajewski M., Pathak S.♦, Enhancement of mechanical properties of vertically aligned carbon nanotube arrays due to N+ ion irradiation, NANOTECHNOLOGY, ISSN: 0957-4484, DOI: 10.1088/1361-6528/ab8665, Vol.31, No.28, pp.285703-1-9, 2020
Abstract:

In this work we apply N+ ion irradiation on vertically aligned carbon nanotube (VACNT) arrays in order to increase the number of connections and joints in the CNT network. The ions energy was 50 keV and fluence 5 × 10^17 ions cm^−2. The film was 160 μm thick. SEM images revealed the ion irradiation altered the carbon bonding and created a sponge-like, brittle structure at the surface of the film, with the ion irradiation damage region extending ~4 μm in depth. TEM images showed the brittle structure consists of amorphous carbon forming between nanotubes. The significant enhancement of mechanical properties of the irradiated sample studied by the cyclic nanoindentation with a flat punch indenter was observed. Irradiation on the VACNT film made the structure stiffer, resulted in a higher percentage recovery, and reduced the energy dissipation under compression. The results are encouraging for further studies which will lead to create a class of materials - ion-irradiated VACNT films - which after further research may find application in storage or harvesting energy at the micro/nanoscale.

Keywords:

vertically aligned carbon nanotubes, ion irradiation, nanoindentation

Affiliations:
Jarząbek D.M.-IPPT PAN
Harvey C.-University of Nevada (US)
Levintant-Zayonts N.-IPPT PAN
Wojciechowski T.-Institute of Physics, Polish Academy of Sciences (PL)
Gniadek M.-University of Warsaw (PL)
Krajewski M.-IPPT PAN
Pathak S.-University of Nevada (US)
4.Osial M.♦, Warczak M.♦, Kulesza P.♦, Krysiński P.♦, Gniadek M.♦, Hybrid polyindole‑gold nanobrush for electrochemical oxidation of ascorbic acid, Journal of Electroanalytical Chemistry, ISSN: 1572-6657, DOI: 10.1016/j.jelechem.2020.114664, Vol.877, No.114664, pp.1-10, 2020
Keywords:

Electrocatalysis, Ascorbic acid, Polyindole, Gold nanoparticles, Nanobrush, Hard-template synthesis

Affiliations:
Osial M.-other affiliation
Warczak M.-Institute of Physical Chemistry, Polish Academy of Sciences (PL)
Kulesza P.-other affiliation
Krysiński P.-other affiliation
Gniadek M.-University of Warsaw (PL)
Conference abstracts
1.Jarząbek D.M., Harvey C.♦, Levintant-Zayonts N., Daraio C.♦, Dziekoński C., Wojciechowski T.♦, Gniadek M.♦, Pathak S.♦, Mechanical properties of N+ion irradiated vertically aligned carbon nanotube arrays studied by nanoindentation, EUROMAT 2019, European Congress and Exhibition on Advanced Materials and Processes 2019, 2019-09-01/09-05, Stockholm (SE), No.PM6-5, pp.464, 2019
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