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LAPSE:2023.4334

Catalytic Activity of Ni Nanotubes Covered with Nanostructured Gold

Alena Shumskaya, Larissa Panina, Alexander Rogachev, Zhanna Ihnatovich, Artem Kozlovskiy, Maxim Zdorovets, Egor Kaniukov, Ilya Korolkov

February 22, 2023

Abstract
Ni nanotubes (NTs) were produced by the template method in the pores of ion-track membranes and then were successfully functionalized with gold nanoparticles (Ni@Au NTs) using electroless wet-chemical deposition with the aim to demonstrate their high catalytic activity. The fabricated NTs were characterized using a variety of techniques in order to determine their morphology and dimensions, crystalline structure, and magnetic properties. The morphology of Au coating depended on the concentration of gold chloride aqueous solution used for Au deposition. The catalytic activity was evaluated by a model reaction of the reduction of 4-nitrophenol by borohydride ions in the presence of Ni and Ni@Au NTs. The reaction was monitored spectrophotometrically in real time by detecting the decrease in the absorption peaks. It was found that gold coating with needle-like structure formed at a higher Au-ions concentration had the strongest catalytic effect, while bare Ni NTs had little effect. The presence of a magnetic core allowed the extraction of the catalyst with the help of a magnetic field for reusable applications.

Record ID

LAPSE:2023.4334

Keywords

Au nanocatalysts1, magnetic nanotubes, Ni@Au nanocomposite, template synthesis

Subject

Materials

Suggested Citation

Shumskaya A, Panina L, Rogachev A, Ihnatovich Z, Kozlovskiy A, Zdorovets M, Kaniukov E, Korolkov I. Catalytic Activity of Ni Nanotubes Covered with Nanostructured Gold. (2023). LAPSE:2023.4334

Author Affiliations

Shumskaya A: Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus, 220004 Minsk, Belarus [ORCID]
Panina L: National University of Science and Technology MISiS, 101000 Moscow, Russia; Institute of Physics, Mathematics and Information Technology, Immanuel Kant Baltic Federal University, 236001 Kaliningrad, Russia
Rogachev A: Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus, 220004 Minsk, Belarus
Ihnatovich Z: Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus, 220004 Minsk, Belarus
Kozlovskiy A: Engineering Department, L.N. Gumilyov Eurasian National University, Astana 010000, Kazakhstan; The Institute of Nuclear Physics, Almaty 050000, Kazakhstan [ORCID]
Zdorovets M: Engineering Department, L.N. Gumilyov Eurasian National University, Astana 010000, Kazakhstan; The Institute of Nuclear Physics, Almaty 050000, Kazakhstan; Institute of New Materials and Technologies, Ural Federal University named after B.N.Yeltsin, 62000 [ORCID]
Kaniukov E: National University of Science and Technology MISiS, 101000 Moscow, Russia; Institute of New Materials and Technologies, Ural Federal University named after B.N.Yeltsin, 620000 Ekaterinburg, Russia; Laboratory of Single Crystal Ggrowth, South Ural State U
Korolkov I: Engineering Department, L.N. Gumilyov Eurasian National University, Astana 010000, Kazakhstan; The Institute of Nuclear Physics, Almaty 050000, Kazakhstan

Journal Name

Processes

Volume

Issue

First Page

2279

Year

2021

Publication Date

2021-12-20

DOI:

https://doi.org/10.3390/pr9122279