H2-induced structural evolution in non-crystalline rhodium nanoparticles

被引：29

作者：

Choukroun, R

de Caro, D

Chaudret, B

Lecante, P

Snoeck, E

机构：

[1] CNRS, Chim Coordinat Lab, UPR 8241, F-31077 Toulouse 4, France

[2] CNRS, CEMES, LOE, F-31055 Toulouse, France

来源：

NEW JOURNAL OF CHEMISTRY | 2001年 / 25卷 / 04期

关键词：

D O I：

10.1039/b009192h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A THF solution of [Rh(mu -Cl)(C(2)H(4))(2)](2) reacts in the presence of poly(vinylpyrrolidone) (PVP) with the 15-electron complex vanadocene, [V(C(5)H(5))(2)], to give PVP-protected native rhodium particles. High resolution electron microscopy (HREM) and wide angle X-ray scattering ((WAXS) experiments confirm the presence of a non-periodic structure (polytetrahedral atomic organization); when exposed to hydrogen, the rhodium particles exhibit a pattern consistent with the signature of a fcc lattice.

引用

页码：525 / 527

页数：3

共 22 条

[1]

Bardaji M, 1997, NEW J CHEM, V21, P1243

[2] Nanoscale colloidal metals and alloys stabilized by solvents and surfactants - Preparation and use as catalyst precursors [J].

Bonnemann, H ;

Braun, G ;

Brijoux, W ;

Brinkmann, R ;

Tilling, AS ;

Seevogel, K ;

Siepen, K .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1996, 520 (1-2) :143-162

[3]

Bonnemann H, 1996, ACTIVE METALS, P339, DOI DOI 10.1002/9783527615179.CH09

[4] HREM and WAXS study of the structure of metallic nanoparticles [J].

Casanove, MJ ;

Lecante, P ;

Snoeck, E ;

Mosset, A ;

Roucau, C .

JOURNAL DE PHYSIQUE III, 1997, 7 (03) :505-515

[5] Use of vanadocene as an organometallic reducing agent for the preparation of ultrafine magnetic iron powder and organized iron particles from iron salts [J].

Choukroun, R ;

de Caro, D ;

Matéo, S ;

Amiens, C ;

Chaudret, B ;

Snoeck, E ;

Respaud, M .

NEW JOURNAL OF CHEMISTRY, 1998, 22 (11) :1295-1299

[6]

Cramer R., 1974, Inorg. Synth, V15, P14, DOI [10.1002/9780470132463.ch4, DOI 10.1002/9780470132463.CH4]

[7] Platinum nanoparticles stabilized by CO and octanethiol ligands or polymers: FT-IR, NMR, HREM and WAXS studies [J].

Dassenoy, F ;

Philippot, K ;

Ould-Ely, T ;

Amiens, C ;

Lecante, P ;

Snoeck, E ;

Mosset, A ;

Casanove, MJ ;

Chaudret, B .

NEW JOURNAL OF CHEMISTRY, 1998, 22 (07) :703-711

[8]

DASSENOY F, 2000, J CHEM PHYS B, V104, P695

[9]

DOYLE JPK, 1997, J CHEM SOC FARADAY T, V93, P4233

[10] PREPARATION OF COLLOIDAL TRANSITION-METALS IN POLYMERS BY REDUCTION WITH ALCOHOLS OR ETHERS [J].

HIRAI, H ;

NAKAO, Y ;

TOSHIMA, N .

JOURNAL OF MACROMOLECULAR SCIENCE-CHEMISTRY, 1979, A13 (06) :727-750

← 1 2 3 →