Synthesis of Nitrogen Doped Segmented Carbon Nanofibers via Metal Dusting of Ni-Pd Alloy | Sciact - CRIS-система Института катализа

Synthesis of Nitrogen Doped Segmented Carbon Nanofibers via Metal Dusting of Ni-Pd Alloy Научная публикация

Конференция

4th International Conference on Catalysis and Chemical Engineering
24-26 февр. 2020 , Los Angeles, CA

Журнал

Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308

Вых. Данные

Год: 2022, Том: 388–389, Страницы: 312-322 Страниц : 11 DOI: 10.1016/j.cattod.2020.06.024

Ключевые слова

nickel–palladium alloy; metal dusting; self-organizing catalyst; N-doped carbon nanofibers; acetonitrile; 1,2-dichloroethane

Авторы

Mishakov Ilya V. ^1,2 , Bauman Yury I. ¹ , Shubin Yury V. ³ , Kibis Lidiya S. ^1,2 , Gerasimov Evgenii Yu. ^1,2 , Mel’gunov Maksim S. ^1,2 , Stoyanovskii Vladimir O. ¹ , Korenev Sergey V. ³ , Vedyagin Aleksey A. ^1,4

Организации

1	Boreskov Institute of Catalysis
2	Novosibirsk State University
3	Nikolaev Institute of Inorganic Chemistry
4	National Research Tomsk Polytechnic University

Информация о финансировании (2)

1	Российский фонд фундаментальных исследований	18-29-19053
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	FSWW-2020-0011

A single-phase micro-disperse Ni-Pd (5 wt.%) alloy prepared by coprecipitation technique was studied as a catalyst precursor for the synthesis of the nanostructured carbon product. Catalytic synthesis of N-doped carbon nanofibers was implemented by the joint decomposition of C2H4Cl2 and CH3CN vapors in H2 excess at 600 °C. The in situ kinetic experiments performed in a flow gravimetric setup with McBain balances showed that the carbon deposition process is characterized by an induction period (18-20 min). The intensive metal dusting of the Ni-Pd alloyed precursor in reaction conditions was found to lead to its complete disintegration. The obtained submicron-sized Ni-Pd particles were shown by XRD to have the same composition as the starting Ni-Pd (5%) precursor. The growth of carbon filaments accompanied the rapid disintegration of Ni-Pd alloy. The addition of acetonitrile vapors into the reaction mixture was found to enhance carbon yield from 24 (0%) to 40.5 (5 vol.%) and 50.9 (8 vol.%) grams per 1 g of catalyst for 2 h of reaction. Joint catalytic processing of C2H4Cl2 and CH3CN was shown to be sufficient for the production of carbon nanofibers doped with nitrogen. According to XPS and EDX data, the average amount of nitrogen within the obtained N-CNF was about 1.8 wt.%. It was revealed by microscopic studies (SEM, TEM) that the produced N-doped carbon filaments are characterized with a rather regular segmental structure similar to that observed for a reference sample of N-free CNF. The synthesized N-CNF samples are characterized by ID/IG ∼ 1.3 (Raman spectroscopy) and high textural parameters (SBET ∼ 390-450 m2/g, Vpore ∼ 0.6 cm3/g).

Mishakov I.V. , Bauman Y.I. , Shubin Y.V. , Kibis L.S. , Gerasimov E.Y. , Mel’gunov M.S. , Stoyanovskii V.O. , Korenev S.V. , Vedyagin A.A.
Synthesis of Nitrogen Doped Segmented Carbon Nanofibers via Metal Dusting of Ni-Pd Alloy
Catalysis Today. 2022. V.388–389. P.312-322. DOI: 10.1016/j.cattod.2020.06.024 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	2 мар. 2020 г.
Принята к публикации:	5 июн. 2020 г.
Опубликована online:	12 июн. 2020 г.
Опубликована в печати:	20 февр. 2022 г.

Web of science:	WOS:000760356900003
Scopus:	2-s2.0-85086942326
РИНЦ:	43302922
Chemical Abstracts:	2020:1285055
OpenAlex:	W3035746088

БД	Цитирований
Scopus	6
РИНЦ	5
Web of science	5
OpenAlex	7