Reactive spark plasma synthesis of Mo2C/Mo3Co3C ceramic for heterostructured electrodes used for hydrogen energy technology.
Saved in:
| Title: | Reactive spark plasma synthesis of Mo2C/Mo3Co3C ceramic for heterostructured electrodes used for hydrogen energy technology. |
|---|---|
| Authors: | Buravlev, I. Yu.1 (AUTHOR), Vornovskikh, A.A.1 (AUTHOR), Shichalin, O.O.1,2 (AUTHOR) oleg_shich@mail.ru, Lembikov, A.O.1 (AUTHOR), Simonenko, T.L.3 (AUTHOR), Seroshtan, A.I.1 (AUTHOR), Buravleva, A.A.1,2 (AUTHOR), Belov, A.A.1 (AUTHOR), Kosyanov, D. Yu1 (AUTHOR), Papynov, E.K.1 (AUTHOR) |
| Source: | Ceramics International. May2024:Part A, Vol. 50 Issue 9, p14445-14457. 13p. |
| Subjects: | Hydrogen plasmas, Hydrogen as fuel, Standard hydrogen electrode, Isothermal temperature, Ceramics, Energy consumption |
| Abstract: | The paper presents an original method for synthesizing high-density composite ceramics with a Mo 2 C/Mo 3 Co 3 C composition using the technology of high-speed Spark Plasma Sintering (SPS) of a mechanically activated powder mixture of Mo 2 C-10 wt%Co. The activated homogeneous starting mixture was obtained by wet milling/activation of the initial powders of Mo 2 C and Co in an anhydrous isopropanol medium. The ceramic samples were consolidated by SPS under vacuum (10−5 atm.) at 1000, 1100, 1150, and 1200 °C with a heating rate of 87.3 °C·min−1 under constant external uniaxial pressing pressure of 50 MPa. The sintering kinetics were studied, the twofold nature of sintering was established, and the temperature range of active densification was determined. The ceramic synthesis is accompanied by a reactive interaction of the components, resulting in the formation of the Mo 3 Co 3 C phase and a change in the crystal lattice of the non-stoichiometric Mo 2 C x compound. The ceramic obtained in the temperature interval of the isothermal sintering stage of 1150–1200 °C is homogeneous in the distribution of Mo and Co, consists of a Mo 2 C/Mo 3 Co 3 C phase mixture, has a density value of 98.13 ± 0.5 % theoretical density, and has an average Vickers hardness value of ∼1526 HV. Increasing the sintering temperature to 1200 °C results in the formation of almost monolithic structures in the samples, but also induces the formation of large defects due to the collective consolidation of pores within the bulk material and increases the susceptibility of the ceramic to cracking. The paper presents preliminary results from electrochemical testing. The proposed method for synthesizing Mo 2 C/Mo 3 Co 3 C ceramics has potential for use in optimizing the composition and production methods of electrode materials for the realization of active components in heterostructured electrodes used for hydrogen evolution. [ABSTRACT FROM AUTHOR] |
| Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 176197382 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Reactive spark plasma synthesis of Mo2C/Mo3Co3C ceramic for heterostructured electrodes used for hydrogen energy technology. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Buravlev%2C+I%2E+Yu%2E%22">Buravlev, I. Yu.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vornovskikh%2C+A%2EA%2E%22">Vornovskikh, A.A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shichalin%2C+O%2EO%2E%22">Shichalin, O.O.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> oleg_shich@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Lembikov%2C+A%2EO%2E%22">Lembikov, A.O.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Simonenko%2C+T%2EL%2E%22">Simonenko, T.L.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Seroshtan%2C+A%2EI%2E%22">Seroshtan, A.I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Buravleva%2C+A%2EA%2E%22">Buravleva, A.A.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Belov%2C+A%2EA%2E%22">Belov, A.A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kosyanov%2C+D%2E+Yu%22">Kosyanov, D. Yu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Papynov%2C+E%2EK%2E%22">Papynov, E.K.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. May2024:Part A, Vol. 50 Issue 9, p14445-14457. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Hydrogen+plasmas%22">Hydrogen plasmas</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+as+fuel%22">Hydrogen as fuel</searchLink><br /><searchLink fieldCode="DE" term="%22Standard+hydrogen+electrode%22">Standard hydrogen electrode</searchLink><br /><searchLink fieldCode="DE" term="%22Isothermal+temperature%22">Isothermal temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Ceramics%22">Ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The paper presents an original method for synthesizing high-density composite ceramics with a Mo 2 C/Mo 3 Co 3 C composition using the technology of high-speed Spark Plasma Sintering (SPS) of a mechanically activated powder mixture of Mo 2 C-10 wt%Co. The activated homogeneous starting mixture was obtained by wet milling/activation of the initial powders of Mo 2 C and Co in an anhydrous isopropanol medium. The ceramic samples were consolidated by SPS under vacuum (10−5 atm.) at 1000, 1100, 1150, and 1200 °C with a heating rate of 87.3 °C·min−1 under constant external uniaxial pressing pressure of 50 MPa. The sintering kinetics were studied, the twofold nature of sintering was established, and the temperature range of active densification was determined. The ceramic synthesis is accompanied by a reactive interaction of the components, resulting in the formation of the Mo 3 Co 3 C phase and a change in the crystal lattice of the non-stoichiometric Mo 2 C x compound. The ceramic obtained in the temperature interval of the isothermal sintering stage of 1150–1200 °C is homogeneous in the distribution of Mo and Co, consists of a Mo 2 C/Mo 3 Co 3 C phase mixture, has a density value of 98.13 ± 0.5 % theoretical density, and has an average Vickers hardness value of ∼1526 HV. Increasing the sintering temperature to 1200 °C results in the formation of almost monolithic structures in the samples, but also induces the formation of large defects due to the collective consolidation of pores within the bulk material and increases the susceptibility of the ceramic to cracking. The paper presents preliminary results from electrochemical testing. The proposed method for synthesizing Mo 2 C/Mo 3 Co 3 C ceramics has potential for use in optimizing the composition and production methods of electrode materials for the realization of active components in heterostructured electrodes used for hydrogen evolution. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=176197382 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ceramint.2024.01.357 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 14445 Subjects: – SubjectFull: Hydrogen plasmas Type: general – SubjectFull: Hydrogen as fuel Type: general – SubjectFull: Standard hydrogen electrode Type: general – SubjectFull: Isothermal temperature Type: general – SubjectFull: Ceramics Type: general – SubjectFull: Energy consumption Type: general Titles: – TitleFull: Reactive spark plasma synthesis of Mo2C/Mo3Co3C ceramic for heterostructured electrodes used for hydrogen energy technology. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Buravlev, I. Yu. – PersonEntity: Name: NameFull: Vornovskikh, A.A. – PersonEntity: Name: NameFull: Shichalin, O.O. – PersonEntity: Name: NameFull: Lembikov, A.O. – PersonEntity: Name: NameFull: Simonenko, T.L. – PersonEntity: Name: NameFull: Seroshtan, A.I. – PersonEntity: Name: NameFull: Buravleva, A.A. – PersonEntity: Name: NameFull: Belov, A.A. – PersonEntity: Name: NameFull: Kosyanov, D. Yu – PersonEntity: Name: NameFull: Papynov, E.K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2024:Part A Type: published Y: 2024 Identifiers: – Type: issn-print Value: 02728842 Numbering: – Type: volume Value: 50 – Type: issue Value: 9 Titles: – TitleFull: Ceramics International Type: main |
| ResultId | 1 |
