Standard

Ir–Re binary alloys under extreme conditions and their electrocatalytic activity in methanol oxidation. / Yusenko, Kirill V.; Bykova, Elena; Bykov, Maxim и др.

в: Acta Materialia, Том 139, 15.10.2017, стр. 236-243.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Yusenko, KV, Bykova, E, Bykov, M, Riva, S, Crichton, WA, Yusenko, MV, Sukhikh, AS, Arnaboldi, S, Hanfland, M, Dubrovinsky, LS & Gromilov, SA 2017, 'Ir–Re binary alloys under extreme conditions and their electrocatalytic activity in methanol oxidation', Acta Materialia, Том. 139, стр. 236-243. https://doi.org/10.1016/j.actamat.2017.08.012

APA

Yusenko, K. V., Bykova, E., Bykov, M., Riva, S., Crichton, W. A., Yusenko, M. V., Sukhikh, A. S., Arnaboldi, S., Hanfland, M., Dubrovinsky, L. S., & Gromilov, S. A. (2017). Ir–Re binary alloys under extreme conditions and their electrocatalytic activity in methanol oxidation. Acta Materialia, 139, 236-243. https://doi.org/10.1016/j.actamat.2017.08.012

Vancouver

Yusenko KV, Bykova E, Bykov M, Riva S, Crichton WA, Yusenko MV и др. Ir–Re binary alloys under extreme conditions and their electrocatalytic activity in methanol oxidation. Acta Materialia. 2017 окт. 15;139:236-243. doi: 10.1016/j.actamat.2017.08.012

Author

Yusenko, Kirill V. ; Bykova, Elena ; Bykov, Maxim и др. / Ir–Re binary alloys under extreme conditions and their electrocatalytic activity in methanol oxidation. в: Acta Materialia. 2017 ; Том 139. стр. 236-243.

BibTeX

@article{00b7dc1684ca4c0887ca55fef45dd19d,
title = "Ir–Re binary alloys under extreme conditions and their electrocatalytic activity in methanol oxidation",
abstract = "The formation of the hcp-Ir0.70Re0.30 alloy from the single-source precursor (NH4)2[Ir0.70Re0.30Cl6] upon heating in hydrogen atmosphere can be associated with the formation of two intermediates: a crystalline iridium-based intermediate and a fcc-structured alloy. Ir–Re alloys show lower thermal expansion coefficients and smaller compressibility in comparison with individual metals. The high-temperature high-pressure treatment of hcp-Ir0.70Re0.30 alloy enable us to probe the Ir–Re pressure dependent phase diagram. The miscibility gap between hcp and fcc alloys slightly shifts towards the rhenium side below 4 GPa. Above 4 GPa, the miscibility gap does not drift with pressure and narrows with compression. The electrocatalytic activity of Ir–Re alloys has been tested for methanol oxidation in acidic water solution. Ir–Re alloys show higher electrocatalytic activity in comparison with pure Ir and Re, which makes them perspective candidates for fuel cells application. The highest electrocatalytic activity has been obtained for the two-phase Ir0.85Re0.15 composition.",
keywords = "Alloys, Electrocatalysis, High-pressure, High-temperature, Phase diagrams, X-ray diffraction, SYSTEM, HIGH-PRESSURE, HYDROGENOLYSIS, THERMAL-EXPANSION, STABILITY, HIGH-TEMPERATURE, COMPRESSIBILITY, RHENIUM, MODIFIED IRIDIUM CATALYST, PHASE-DIAGRAM",
author = "Yusenko, {Kirill V.} and Elena Bykova and Maxim Bykov and Sephira Riva and Crichton, {Wilson A.} and Yusenko, {Maria V.} and Sukhikh, {Aleksandr S.} and Serena Arnaboldi and Michael Hanfland and Dubrovinsky, {Leonid S.} and Gromilov, {Sergey A.}",
note = "Publisher Copyright: {\textcopyright} 2017 Acta Materialia Inc.",
year = "2017",
month = oct,
day = "15",
doi = "10.1016/j.actamat.2017.08.012",
language = "English",
volume = "139",
pages = "236--243",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Ir–Re binary alloys under extreme conditions and their electrocatalytic activity in methanol oxidation

AU - Yusenko, Kirill V.

AU - Bykova, Elena

AU - Bykov, Maxim

AU - Riva, Sephira

AU - Crichton, Wilson A.

AU - Yusenko, Maria V.

AU - Sukhikh, Aleksandr S.

AU - Arnaboldi, Serena

AU - Hanfland, Michael

AU - Dubrovinsky, Leonid S.

AU - Gromilov, Sergey A.

N1 - Publisher Copyright: © 2017 Acta Materialia Inc.

PY - 2017/10/15

Y1 - 2017/10/15

N2 - The formation of the hcp-Ir0.70Re0.30 alloy from the single-source precursor (NH4)2[Ir0.70Re0.30Cl6] upon heating in hydrogen atmosphere can be associated with the formation of two intermediates: a crystalline iridium-based intermediate and a fcc-structured alloy. Ir–Re alloys show lower thermal expansion coefficients and smaller compressibility in comparison with individual metals. The high-temperature high-pressure treatment of hcp-Ir0.70Re0.30 alloy enable us to probe the Ir–Re pressure dependent phase diagram. The miscibility gap between hcp and fcc alloys slightly shifts towards the rhenium side below 4 GPa. Above 4 GPa, the miscibility gap does not drift with pressure and narrows with compression. The electrocatalytic activity of Ir–Re alloys has been tested for methanol oxidation in acidic water solution. Ir–Re alloys show higher electrocatalytic activity in comparison with pure Ir and Re, which makes them perspective candidates for fuel cells application. The highest electrocatalytic activity has been obtained for the two-phase Ir0.85Re0.15 composition.

AB - The formation of the hcp-Ir0.70Re0.30 alloy from the single-source precursor (NH4)2[Ir0.70Re0.30Cl6] upon heating in hydrogen atmosphere can be associated with the formation of two intermediates: a crystalline iridium-based intermediate and a fcc-structured alloy. Ir–Re alloys show lower thermal expansion coefficients and smaller compressibility in comparison with individual metals. The high-temperature high-pressure treatment of hcp-Ir0.70Re0.30 alloy enable us to probe the Ir–Re pressure dependent phase diagram. The miscibility gap between hcp and fcc alloys slightly shifts towards the rhenium side below 4 GPa. Above 4 GPa, the miscibility gap does not drift with pressure and narrows with compression. The electrocatalytic activity of Ir–Re alloys has been tested for methanol oxidation in acidic water solution. Ir–Re alloys show higher electrocatalytic activity in comparison with pure Ir and Re, which makes them perspective candidates for fuel cells application. The highest electrocatalytic activity has been obtained for the two-phase Ir0.85Re0.15 composition.

KW - Alloys

KW - Electrocatalysis

KW - High-pressure

KW - High-temperature

KW - Phase diagrams

KW - X-ray diffraction

KW - SYSTEM

KW - HIGH-PRESSURE

KW - HYDROGENOLYSIS

KW - THERMAL-EXPANSION

KW - STABILITY

KW - HIGH-TEMPERATURE

KW - COMPRESSIBILITY

KW - RHENIUM

KW - MODIFIED IRIDIUM CATALYST

KW - PHASE-DIAGRAM

UR - http://www.scopus.com/inward/record.url?scp=85027417673&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2017.08.012

DO - 10.1016/j.actamat.2017.08.012

M3 - Article

AN - SCOPUS:85027417673

VL - 139

SP - 236

EP - 243

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

ER -

ID: 9076485