Solid solutions Ru x Ir1−x synthesized by thermolysis of coordination compounds

Martynova, S. A.; Yusenko, K. V.; Korolkov, Ilya V.; Gromilov, S. A.

doi:10.1134/s0036023607110162

Cited by 3 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Details can be found elsewhere. 9,14 Typically, aqueous solutions of [M(NH 3 ) 5 Cl]Cl 2 (M = Cr, Co, Ru, Rh, and Ir) prepared according to the published procedures 9,15 were mixed with (NH 4 ) 2 [IrCl 6 ] aqueous solution at room temperature. After 10-15 minutes, fine brown precipitates were filtered, washed with 5-10 mL of ice-cold water, acetone and air dried.…”

Section: Methodsmentioning

confidence: 99%

“…The average MÁ Á ÁM distances in their crystal structures are 5.7-5.7 Å. Co-crystallisation of individual salts results in the formation of mixed [M 0 (NH 3 ) 5 Cl] x [M 00 (NH 3 ) 5 Cl] 1Àx [IrCl 6 ], which can be crystallized in the whole concentration interval and can be used for the preparation of alloys in a broad range of compositions. 14 Detailed investigation using a number of complementary techniques on a complete set of possible isostructural salts can shed light on very general tendencies in coordination chemistry. In the early days, thermal decomposition investigations were fragmented and based on thermal analysis and mainly ex situ IR or PXRD.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Exothermal effects in the thermal decomposition of [IrCl₆]²⁻-containing salts with [M(NH₃)₅Cl]²⁺ cations: [M(NH₃)₅Cl][IrCl₆] (M = Co, Cr, Ru, Rh, Ir)

et al. 2018

Self Cite

View full text Add to dashboard Cite

M(NH 3 ) 5 Cl][IrCl 6 ], M = Co, Cr, Ru, Rh, and Ir, were proposed as single-source precursors for bimetallic alloys. Their thermal decomposition in inert and reductive atmospheres below 700 1C results in the formation of nanostructured porous Ir 0.5 M 0.5 alloys. Salts decompose with a significant exothermal effect during the first stage of their thermal breakdown in an inert atmosphere above 200 1C. The exothermal effect gradually decreases in the series: [Co(NH 3 ) 5 Cl][IrCl 6 ] (1) 4 [Cr(NH 3 ) 5 Cl][IrCl 6 ] (2) 4 [Ru(NH 3 ) 5 Cl][IrCl 6 ] (3) 4 [Rh(NH 3 ) 5 Cl][IrCl 6 ] (4); [Ir(NH 3 ) 5 Cl][IrCl 6 ] (5) does not exhibit any thermal effects and decomposes at much higher temperatures. To shed light on their thermal decomposition and the nature of the exothermal effect, DSC-EGA, in situ and ex situ IR, Raman, XPS and XAFS studies were performed. A combination of complementary techniques suggests a simultaneous ligand exchange and a reduction of central atoms as key processes. In [Co(NH 3 ) 5 Cl][IrCl 6 ], Co(III) and Ir(IV) simultaneously oxidise coordinated ammonia, which can be detected due to a significant exothermal effect and the presence of Co(II) and Ir(III) in the intermediate product. The appearance of Ir-N frequencies demonstrates a ligand exchange between cations and the [IrCl 6 ] 2À anion. Salts with Cr(III), Ru(III), and Rh(III) show a much lower exothermal effect due to the stability of their oxidation states. Salts with Rh(III) and Ir(III) demonstrate a high thermal stability and a low tendency for ligand exchange as well as decomposition with exothermal effects.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exothermal effects in the thermal decomposition of [IrCl₆]²⁻-containing salts with [M(NH₃)₅Cl]²⁺ cations: [M(NH₃)₅Cl][IrCl₆] (M = Co, Cr, Ru, Rh, Ir)

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Single-phase fcc-and hcp-structured Ir-Os [7,8], Ir-Ru [11], and Ir-Os-Ru alloys can be considered as synthetic analogous to obtain thermal expansion and pressure compressibility curves for iridosmine minerals (Figures 5 and 6). 6).…”

Section: Thermal Expansion and Pressure Compressibility Of Ir-ru Bina...mentioning

confidence: 99%

High compressibility of synthetic analogous of binary iridium–ruthenium and ternary iridium–osmium–ruthenium minerals

et al. 2020

View full text Add to dashboard Cite

Transition metal atoms (Fe, Co, Ni, Cu, Zn) doped RuIr surface for the hydrogen evolution reaction: A first-principles study

Ren

Guo

Huang

2021

Applied Surface Science

View full text Add to dashboard Cite

Solid solutions Ru x Ir1−x synthesized by thermolysis of coordination compounds

Cited by 3 publications

References 3 publications

Exothermal effects in the thermal decomposition of [IrCl₆]²⁻-containing salts with [M(NH₃)₅Cl]²⁺ cations: [M(NH₃)₅Cl][IrCl₆] (M = Co, Cr, Ru, Rh, Ir)

Exothermal effects in the thermal decomposition of [IrCl₆]²⁻-containing salts with [M(NH₃)₅Cl]²⁺ cations: [M(NH₃)₅Cl][IrCl₆] (M = Co, Cr, Ru, Rh, Ir)

High compressibility of synthetic analogous of binary iridium–ruthenium and ternary iridium–osmium–ruthenium minerals

Transition metal atoms (Fe, Co, Ni, Cu, Zn) doped RuIr surface for the hydrogen evolution reaction: A first-principles study

Contact Info

Product

Resources

About

Solid solutions Ru x Ir1−x synthesized by thermolysis of coordination compounds

Cited by 3 publications

References 3 publications

Exothermal effects in the thermal decomposition of [IrCl6]2−-containing salts with [M(NH3)5Cl]2+ cations: [M(NH3)5Cl][IrCl6] (M = Co, Cr, Ru, Rh, Ir)

Exothermal effects in the thermal decomposition of [IrCl6]2−-containing salts with [M(NH3)5Cl]2+ cations: [M(NH3)5Cl][IrCl6] (M = Co, Cr, Ru, Rh, Ir)

High compressibility of synthetic analogous of binary iridium–ruthenium and ternary iridium–osmium–ruthenium minerals

Transition metal atoms (Fe, Co, Ni, Cu, Zn) doped RuIr surface for the hydrogen evolution reaction: A first-principles study

Contact Info

Product

Resources

About

Exothermal effects in the thermal decomposition of [IrCl₆]²⁻-containing salts with [M(NH₃)₅Cl]²⁺ cations: [M(NH₃)₅Cl][IrCl₆] (M = Co, Cr, Ru, Rh, Ir)

Exothermal effects in the thermal decomposition of [IrCl₆]²⁻-containing salts with [M(NH₃)₅Cl]²⁺ cations: [M(NH₃)₅Cl][IrCl₆] (M = Co, Cr, Ru, Rh, Ir)