Catalytic Synthesis of Segmented Carbon Filaments via Decomposition of Chlorinated Hydrocarbons on Ni-Pt Alloys | Sciact - CRIS-система Института катализа

Catalytic Synthesis of Segmented Carbon Filaments via Decomposition of Chlorinated Hydrocarbons on Ni-Pt Alloys Научная публикация

Конференция

International Conference on Applied Catalysis & Chemical Engineering
08-10 апр. 2019 , Dubai

Журнал

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

Вых. Данные

Год: 2020, Том: 348, Страницы: 102-110 Страниц : 9 DOI: 10.1016/j.cattod.2019.08.015

Ключевые слова

carbon erosion; nickel–platinum alloys; self-organizing catalysts; carbon segmented nanofilaments; 1,2-dichloroethane decomposition

Авторы

Bauman Yury I. ¹ , Mishakov Ilya V. ^1,2 , Rudneva Yuliya V. ³ , Popov Anton A. ³ , Rieder David ⁴ , Korneev Denis V. ⁵ , Serkova Alexandra N. ¹ , Shubin Yury V. ^2,3 , Vedyagin Aleksey A. ^1,6

Организации

1	Boreskov Institute of Catalysis
2	Novosibirsk State University
3	Nikolaev Institute of Inorganic Chemistry
4	Karlsruhe Institute of Technology
5	Monash University
6	National Research Tomsk Polytechnic University

Информация о финансировании (3)

1	Федеральное агентство научных организаций России	0303-2016-0014
2	Российский фонд фундаментальных исследований	18-29-19053
3	Российский фонд фундаментальных исследований	18-03-00777

A series of micro-disperse Ni1-xPtx alloys with the sponge-like structure was prepared by a simultaneous precipitation method with subsequent sintering of the sediment in H2 atmosphere at 800 °C. The formation of single-phase solid solution Ni1-xPtx was confirmed by powder XRD analysis for entire range of Pt concentrations (2.2-75.9 wt.%). The synthesized samples were studied in a process of catalytic decomposition of C2H4Cl2 at 600 °C. In situ kinetic studies of the carbon deposition process were carried out in a flow gravimetric setup equipped with McBain balances. Interaction of Ni-Pt alloys with reaction mixture is characterized by an induction period (18-32 min) followed by rapid disintegration of the bulk alloys with intensive growth of carbon fibers. The stage of the induction period was explored in detail by means of XRD and SEM techniques. According to XRD data, the interaction of Ni-Pt alloys with C2H4Cl2 vapors is accompanied by formation of Ni1-xPtxCδ interstitial solution due to entry of carbon into the crystal lattice of the alloy. The effect of Pt addition on catalytic activity of Ni in CCVD process was also studied. It was found that the yield of carbon product depends extremely on Pt concentration with a maximum at CPt =4.4 wt.% (26 g/gNi for 120 min). The impact of Pt concentration upon morphology and structural features of the produced carbon fibers was investigated by SEM and TEM techniques.

Bauman Y.I. , Mishakov I.V. , Rudneva Y.V. , Popov A.A. , Rieder D. , Korneev D.V. , Serkova A.N. , Shubin Y.V. , Vedyagin A.A.
Catalytic Synthesis of Segmented Carbon Filaments via Decomposition of Chlorinated Hydrocarbons on Ni-Pt Alloys
Catalysis Today. 2020. V.348. P.102-110. DOI: 10.1016/j.cattod.2019.08.015 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	24 мая 2019 г.
Принята к публикации:	10 авг. 2019 г.
Опубликована online:	12 авг. 2019 г.
Опубликована в печати:	15 мая 2020 г.

Web of science:	WOS:000533564400003
Scopus:	2-s2.0-85070859849
РИНЦ:	43204901
Chemical Abstracts:	2019:1634752
OpenAlex:	W2966976007

БД	Цитирований
Scopus	20
РИНЦ	16
Web of science	20
OpenAlex	19