PT-RU ANODES FOR METHANOL ELECTROOXIDATION - A RU-99 MOSSBAUER STUDY

被引：40

作者：

HAMNETT, A ^{[1
]}

KENNEDY, BJ ^{[1
]}

WAGNER, FE ^{[1
]}

机构：

[1] TECH UNIV MUNICH,DEPT PHYS E15,W-8046 GARCHING,GERMANY

来源：

JOURNAL OF CATALYSIS | 1990年 / 124卷 / 01期

关键词：

D O I：

10.1016/0021-9517(90)90101-O

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

99Ru Mössbauer spectra have been obtained for a series of PtRu methanol oxidation anodes. For the most catalytically active sample, XPS and Mössbauer data indicate the presence of Ru(IV) species with a small quadrupole splitting. For highly dispersed samples the Mössbauer data indicate that the Ru is present as a mixture of rutile-phase RuO2 and a second Ru(IV) species. Comparison with electrocatalytic results suggests that the second Ru(IV) species is the active catalytic copromoter. The possible identity of this species is discussed. © 1990.

引用

页码：30 / 40

页数：11

共 50 条

[31] Carbon supported and unsupported Pt-Ru anodes for liquid feed direct methanol fuel cells
Liu, L
Pu, G
Viswanathan, R
Fan, QB
Liu, RX
Smotkin, ES
ELECTROCHIMICA ACTA, 1998, 43 (24) : 3657 - 3663
[32] RU-99 MOSSBAUER STUDY OF THE LOCAL ENVIRONMENTS OF RHODIUM AND RUTHENIUM IN BETA-PDHX
KARGER, M
WAGNER, FE
JOURNAL OF THE LESS-COMMON METALS, 1980, 73 (02): : 282 - 282
[33] Bimetallic Pt/Ru complexes as catalysts for the electrooxidation of methanol
Tess, ME
Hill, PL
Torraca, KE
Kerr, ME
Abboud, KA
McElwee-White, L
INORGANIC CHEMISTRY, 2000, 39 (17) : 3942 - +
[34] Facile Fabrication of Pt-Ru Nanoparticles Immobilized on Reduced Graphene Oxide Support for the Electrooxidation of Methanol and Ethanol
Raghavendra, P.
Reddy, Gajulapalli Vishwakshan
Sivasubramanian, Ramanathan
Chandana, Panchangam Sri
Sarma, Loka Subramanyam
CHEMISTRYSELECT, 2017, 2 (35): : 11762 - 11770
[35] The chemical state of Ru in Pt-Ru direct methanol fuel cell anode electrocatalysts
Hagans, PL
Swider, KE
Rolison, DR
PROCEEDINGS OF THE SYMPOSIUM ON ELECTRODE MATERIALS AND PROCESSES FOR ENERGY CONVERSION AND STORAGE IV, 1997, 97 (13): : 86 - 105
[36] Electrochemical and XRD characterization of Pt-Ru blacks for DMFC anodes
Eickes, C
Brosha, E
Garzon, F
Purdy, G
Zelenay, P
Morita, T
Thompsett, D
Proton Conducting Membrane Fuel Cells III, Proceedings, 2005, 2002 (31): : 450 - 467
[37] On the reaction pathway for methanol and carbon monoxide electrooxidation on Pt-Sn alloy versus Pt-Ru alloy surfaces
Wang, K
Gasteiger, HA
Markovic, NM
Ross, PN
ELECTROCHIMICA ACTA, 1996, 41 (16) : 2587 - 2593
[38] Carbon monoxide electrooxidation on porous Pt-Ru electrodes in sulphuric acid
Arico, AS
Modica, E
Passalacqua, E
Antonucci, V
Antonucci, PL
JOURNAL OF APPLIED ELECTROCHEMISTRY, 1997, 27 (11) : 1275 - 1282
[39] ALIGNMENTS AND BAND TERMINATION IN RU-99,RU-100
GIZON, J
JERRESTAM, D
GIZON, A
JOZSA, M
BARK, R
FOGELBERG, B
IDEGUCHI, E
KLAMRA, W
LINDBLAD, T
MITARAI, S
NYBERG, J
PIIPARINEN, M
SLETTEN, G
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1993, 345 (03): : 335 - 336
[40] MEDIUM SPIN STATES IN RU-99 AND RU-101
KAJRYS, G
LECOMTE, R
LANDSBERGER, S
MONARO, S
PHYSICAL REVIEW C, 1983, 28 (04): : 1504 - 1518

← 1 2 3 4 5 →