Catalytic Properties of Bulk (1–x)Ni–xW Alloys in the Decomposition of 1,2-Dichloroethane with the Production of Carbon Nanomaterials Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2022, Volume: 63, Number: 1, Pages: 75-86 Pages count : 12 DOI: 10.1134/S0023158422010037 | ||||||
| Tags | nickel, tungsten, porous nanoalloys, 1,2-dichloroethane, carbon nanofibers, segmented structure, carbide cycle mechanism | ||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0010 |
| 2 | Russian Science Foundation | 21-13-00414 (121041300222-6) |
Abstract:
This work was devoted to a search for effective catalysts for the processing of chlorine-substituted hydrocarbons to obtain carbon nanomaterials. A series of porous (1–x)Ni–xW nanoalloys with tungsten concentrations from 0.5 to 10 wt % was synthesized by a coprecipitation method. All of the samples were singlephase solid solutions based on a face-centered cubic (fcc) lattice of nickel and had a spongy structure. The kinetics of carbon erosion of bulk (1–x)Ni–xW alloys in the course of interaction with a reaction atmosphere containing 1,2-dichloroethane vapor at 600C was studied. This process was accompanied by rapid disintegration of the alloys with the formation of active particles for the growth of carbon nanofibers (CNFs). The addition of tungsten led to an increase in the activity of nickel in the synthesis of CNFs by 10–70%. The highest yield of CNFs for 2 h of reaction (29.8 g/gNi) was observed with a Ni–W alloy (4 wt %). The structural and morphological features of the resulting carbon product were investigated. Electron-microscopic data indicated the formation of carbon filaments with a pronounced segmented structure. Raman spectroscopy data revealed that the addition of tungsten decreased the fraction of amorphous carbon in the product. According to the data of low-temperature nitrogen adsorption, the specific surface area of the carbon nanomaterial was 300–400 m2/g.
Cite:
Mishakov I.V.
, Bauman Y.I.
, Potylitsyna A.R.
, Shubin Y.V.
, Plyusnin P.E.
, Stoyanovskii V.O.
, Vedyagin A.A.
Catalytic Properties of Bulk (1–x)Ni–xW Alloys in the Decomposition of 1,2-Dichloroethane with the Production of Carbon Nanomaterials
Kinetics and Catalysis. 2022. V.63. N1. P.75-86. DOI: 10.1134/S0023158422010037 WOS Scopus РИНЦ AN OpenAlex
Catalytic Properties of Bulk (1–x)Ni–xW Alloys in the Decomposition of 1,2-Dichloroethane with the Production of Carbon Nanomaterials
Kinetics and Catalysis. 2022. V.63. N1. P.75-86. DOI: 10.1134/S0023158422010037 WOS Scopus РИНЦ AN OpenAlex
Original:
Мишаков И.В.
, Бауман Ю.И.
, Потылицына А.Р.
, Шубин Ю.В.
, Плюснин П.Е.
, Стояновский В.О.
, Ведягин А.А.
Каталитические свойства массивных сплавов (1-x)Ni- xW в разложении 1,2-дихлорэтана с получением углеродных наноматериалов
Кинетика и катализ. 2022. Т.63. №1. С.86-98. DOI: 10.31857/S0453881122010038 РИНЦ OpenAlex
Каталитические свойства массивных сплавов (1-x)Ni- xW в разложении 1,2-дихлорэтана с получением углеродных наноматериалов
Кинетика и катализ. 2022. Т.63. №1. С.86-98. DOI: 10.31857/S0453881122010038 РИНЦ OpenAlex
Dates:
| Submitted: | Aug 26, 2021 |
| Accepted: | Sep 7, 2021 |
| Published print: | Feb 1, 2022 |
| Published online: | Mar 23, 2022 |
Identifiers:
| Web of science: | WOS:000772546900007 |
| Scopus: | 2-s2.0-85123838005 |
| Elibrary: | 48419728 |
| Chemical Abstracts: | 2022:790301 |
| OpenAlex: | W4293222947 |