Probing the chemical interaction between iridium nanoparticles and ionic liquid by XPS analysis

被引：61

作者：

Bernardi, F. ^{[1
]}

Scholten, J. D. ^{[2
]}

Fecher, G. H. ^{[3
]}

Dupont, J. ^{[2
]}

Morais, J. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Lab Mol Catalysis, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil

[3] Johannes Gutenberg Univ Mainz, Inst Anorgan & Analyt Chem, D-55099 Mainz, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 479卷 / 1-3期

关键词：

TRANSITION-METAL NANOPARTICLES; CATALYTIC-PROPERTIES; RUTHENIUM DIOXIDE; HYDROGENATION; STABILIZATION; PRECURSOR; SURFACE; NANOCLUSTERS; DISTILLATION; CHEMISTRY;

D O I：

10.1016/j.cplett.2009.07.110

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：

In situ X-ray photoelectron spectroscopy analysis of Ir(0) nanoparticles (1.6 +/- 0.3 nm) dispersed in imidazolium ionic liquid (EMI,EtSO4) shows evidences of the effective interaction between the metallic clusters and the surrounding liquid. By monitoring the C 1s signal of the ionic liquid one observes a change of the binding energy in one of its components (C2) when in the presence of Ir nanoparticles. This result was corroborated by isotope labeling experiments. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：113 / 116

页数：4

共 49 条

[1] A review of modern transition-metal nanoclusters: their synthesis, characterization, and applications in catalysis
Aiken, JD
Finke, RG
[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 1999, 145 (1-2) : 1 - 44
[2] Surface chemistry of room-temperature ionic liquids
Aliaga, Cesar
Santos, Cherry S.
Baldelli, Steven
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (28) : 3683 - 3700
[3] Preparation of nanoparticulate metal catalysts in porous supports using an ionic liquid route;: hydrogenation and C-C coupling
Anderson, K
Fernández, SC
Hardacre, C
Marr, PC
[J]. INORGANIC CHEMISTRY COMMUNICATIONS, 2004, 7 (01) : 73 - 76
[4] Ionic liquids for the convenient synthesis of functional nanoparticles and other inorganic nanostructures
Antonietti, M
Kuang, DB
Smarsly, B
Yong, Z
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (38) : 4988 - 4992
[5] Nanoparticles as recyclable catalysts: The frontier between homogeneous and heterogeneous catalysis
Astruc, D
Lu, F
Aranzaes, JR
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (48) : 7852 - 7872
[6] Rh(0) nanoparticles as catalyst precursors for the solventless hydroformylation of olefins
Bruss, Arnoldo J.
Gelesky, Marcos A.
Machado, Giovanna
Dupont, Jairton
[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 252 (1-2) : 212 - 218
[7] The role of Pd nanoparticles in ionic liquid in the Heck reaction
Cassol, CC
Umpierre, AP
Machado, G
Wolke, SI
Dupont, J
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (10) : 3298 - 3299
[8] A simple and practical method for the preparation and purity determination of halide-free imidazolium ionic liquids
Cassol, CC
Ebeling, G
Ferrera, B
Dupont, J
[J]. ADVANCED SYNTHESIS & CATALYSIS, 2006, 348 (1-2) : 243 - 248
[9] Stabilized and size-tunable gold nanoparticles formed in a quaternary ammonium-based room-temperature ionic liquid under γ-irradiation
Chen, SM
Liu, YD
Wu, GZ
[J]. NANOTECHNOLOGY, 2005, 16 (10) : 2360 - 2364
[10] Chloropalladated propargyl amine: A highly efficient phosphine-free catalyst precursor for the Heck reaction
Consorti, CS
Zanini, ML
Leal, S
Ebeling, G
Dupont, J
[J]. ORGANIC LETTERS, 2003, 5 (07) : 983 - 986

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