Kinetic Features of the Carbon Erosion of a Bulk NiCr Alloy during the Catalytic Decomposition of 1,2-Dichloroethane Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
||||
|---|---|---|---|---|---|
| Output data | Year: 2017, Volume: 58, Number: 4, Pages: 448-454 Pages count : 7 DOI: 10.1134/S0023158417040036 | ||||
| Tags | 1,2-dichloroethane decomposition, carbon erosion, carbon nanofibers, nickel alloys, self-organizing catalysts, temperature regime | ||||
| Authors |
|
||||
| Affiliations |
|
Funding (1)
| 1 | Russian Science Foundation | 16-19-10316 |
Abstract:
Kinetic features for the carbon erosion (CE) of bulk NiCr alloy (NiCrA, nichrome wire 0.1 mm in diameter) were studied at 450–750 °C under conditions of the catalytic decomposition of 1,2-dichloroethane vapor in a reductive atmosphere (H2). It was found that the CE process takes place more efficiently in the temperature range from 550 to 720 °C, leading to the disintegration of the bulk alloy with the formation of a fibrous carbon product. The apparent activation energy of the process was estimated to be 16.8 ± 0.9 kJ/mol. The realization of CE is hampered outside the optimal temperature range because of chlorination (T < 500 °C) or blocking of the alloy’s surface by carbonaceous deposits (T > 720 °C). The kinetics of the process is characterized by the existence of an induction period, whose duration decreases with an increasing temperature (from 40 min at 550 °C to 6 min at 710 °C). According to scanning and transmission electron microscopy data, the submicron metallic particles (0.2–0.4 µm) catalyzing the growth of carbon fibers with disordered structure result from the disintegration of the NiCr alloy.
Cite:
Bauman Y.I.
, Mishakov I.V.
, Vedyagin A.A.
, Serkova A.N.
, Gromov A.A.
Kinetic Features of the Carbon Erosion of a Bulk NiCr Alloy during the Catalytic Decomposition of 1,2-Dichloroethane
Kinetics and Catalysis. 2017. V.58. N4. P.448-454. DOI: 10.1134/S0023158417040036 WOS Scopus РИНЦ AN OpenAlex
Kinetic Features of the Carbon Erosion of a Bulk NiCr Alloy during the Catalytic Decomposition of 1,2-Dichloroethane
Kinetics and Catalysis. 2017. V.58. N4. P.448-454. DOI: 10.1134/S0023158417040036 WOS Scopus РИНЦ AN OpenAlex
Original:
Бауман Ю.И.
, Мишаков И.В.
, Ведягин А.А.
, Серкова А.Н.
, Громов А.А.
Кинетические особенности углеродной эрозии массивного NiCr-сплава при каталитическом разложении 1,2-дихлорэтана
Кинетика и катализ. 2017. Т.58. №4. С.473-480. DOI: 10.7868/S0453881117040049 РИНЦ OpenAlex
Кинетические особенности углеродной эрозии массивного NiCr-сплава при каталитическом разложении 1,2-дихлорэтана
Кинетика и катализ. 2017. Т.58. №4. С.473-480. DOI: 10.7868/S0453881117040049 РИНЦ OpenAlex
Dates:
| Submitted: | Oct 25, 2016 |
| Published print: | Jul 1, 2017 |
| Published online: | Aug 2, 2017 |
Identifiers:
| Web of science: | WOS:000407057400015 |
| Scopus: | 2-s2.0-85026751841 |
| Elibrary: | 31083519 |
| Chemical Abstracts: | 2017:1262857 |
| OpenAlex: | W2741724711 |