PREPARATION OF NANOALLOYS OF THE Pt–Pd–Cr SYSTEM UNDER THERMAL DECOMPOSITION OF [(Pt(NH3)4)x(Pd(NH3)4)1

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PREPARATION OF NANOALLOYS OF THE Pt–Pd–Cr SYSTEM UNDER THERMAL DECOMPOSITION OF [(Pt(NH3)4)x(Pd(NH3)4)1–x]CrO4 COMPLEX SALTS. / Serebrennikova, P. S.; Lagunova, V. I.; Zadesenets, A. V. et al.

In: Journal of Structural Chemistry, Vol. 64, No. 9, 09.2023, p. 1686-1701.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{0c8f9506997641ef8b0985d004582193,

title = "PREPARATION OF NANOALLOYS OF THE Pt–Pd–Cr SYSTEM UNDER THERMAL DECOMPOSITION OF [(Pt(NH3)4)x(Pd(NH3)4)1–x]CrO4 COMPLEX SALTS",

abstract = "The [(Pt(NH3)4)x(Pd(NH3)4)1–x]CrO4 single-phase solid solution (x = 0.5-0.6) is prepared by the cocrystallization of [Pt(NH3)4](NO3)2 and [Pd(NH3)4](NO3)2 aqueous solutions with ammoniac (NH4)2CrO4. The structure and parameters of the tetragonal (I41/amd, Z = 4) unit cell (a = 7.3091(1) {\AA}, c = 15.2720(6) {\AA}) of this compound and the molar fraction of Pt (x = 0.568(7)) are determined using the single-crystal X-ray diffraction method. The unit cell parameters of the studied crystal are additionally refined by an original method (a = 7.3207(9) {\AA}, c = 15.2527(19) {\AA}, V = 817.4(3) {\AA}3) and are further utilized to refine also the molar fraction of Pt using Zen′s law (x = 0.57(1)). A single crystal of [(Pt(NH3)4)0.57(Pd(NH3)4)0.43]CrO4 and two samples of the synthesized product selected from the total mass are thermally decomposed in hydrogen. A study of thermolysis products by XRD, scanning and transmission electron microscopy methods demonstrates the formation of a Pt0.49Pd0.38Cr0.13 nanoalloy included in the Cr2O3 matrix in the form of blocks (~1 µm) and smaller (>2 nm) spherical formations.",

keywords = "X-ray diffraction, accuracy, complex salts, multicomponent nanoalloys, single-component precursor, thermal decomposition",

author = "Serebrennikova, {P. S.} and Lagunova, {V. I.} and Zadesenets, {A. V.} and Mironova, {M. I.} and Gromilov, {S. A.}",

note = "The synthesis of the samples was funded by the Russian Science Foundation (project No. 22-23-00672, https://rscf. ru/project/22-23-00672/). The authors thank the Ministry of Science and Higher Education of the Russian Federation and the Priority 2030 program.",

year = "2023",

month = sep,

doi = "10.1134/S0022476623090123",

language = "English",

volume = "64",

pages = "1686--1701",

journal = "Journal of Structural Chemistry",

issn = "0022-4766",

publisher = "Springer GmbH & Co, Auslieferungs-Gesellschaf",

number = "9",

}

RIS

TY - JOUR

T1 - PREPARATION OF NANOALLOYS OF THE Pt–Pd–Cr SYSTEM UNDER THERMAL DECOMPOSITION OF [(Pt(NH3)4)x(Pd(NH3)4)1–x]CrO4 COMPLEX SALTS

AU - Serebrennikova, P. S.

AU - Lagunova, V. I.

AU - Zadesenets, A. V.

AU - Mironova, M. I.

AU - Gromilov, S. A.

N1 - The synthesis of the samples was funded by the Russian Science Foundation (project No. 22-23-00672, https://rscf. ru/project/22-23-00672/). The authors thank the Ministry of Science and Higher Education of the Russian Federation and the Priority 2030 program.

PY - 2023/9

Y1 - 2023/9

N2 - The [(Pt(NH3)4)x(Pd(NH3)4)1–x]CrO4 single-phase solid solution (x = 0.5-0.6) is prepared by the cocrystallization of [Pt(NH3)4](NO3)2 and [Pd(NH3)4](NO3)2 aqueous solutions with ammoniac (NH4)2CrO4. The structure and parameters of the tetragonal (I41/amd, Z = 4) unit cell (a = 7.3091(1) Å, c = 15.2720(6) Å) of this compound and the molar fraction of Pt (x = 0.568(7)) are determined using the single-crystal X-ray diffraction method. The unit cell parameters of the studied crystal are additionally refined by an original method (a = 7.3207(9) Å, c = 15.2527(19) Å, V = 817.4(3) Å3) and are further utilized to refine also the molar fraction of Pt using Zen′s law (x = 0.57(1)). A single crystal of [(Pt(NH3)4)0.57(Pd(NH3)4)0.43]CrO4 and two samples of the synthesized product selected from the total mass are thermally decomposed in hydrogen. A study of thermolysis products by XRD, scanning and transmission electron microscopy methods demonstrates the formation of a Pt0.49Pd0.38Cr0.13 nanoalloy included in the Cr2O3 matrix in the form of blocks (~1 µm) and smaller (>2 nm) spherical formations.

AB - The [(Pt(NH3)4)x(Pd(NH3)4)1–x]CrO4 single-phase solid solution (x = 0.5-0.6) is prepared by the cocrystallization of [Pt(NH3)4](NO3)2 and [Pd(NH3)4](NO3)2 aqueous solutions with ammoniac (NH4)2CrO4. The structure and parameters of the tetragonal (I41/amd, Z = 4) unit cell (a = 7.3091(1) Å, c = 15.2720(6) Å) of this compound and the molar fraction of Pt (x = 0.568(7)) are determined using the single-crystal X-ray diffraction method. The unit cell parameters of the studied crystal are additionally refined by an original method (a = 7.3207(9) Å, c = 15.2527(19) Å, V = 817.4(3) Å3) and are further utilized to refine also the molar fraction of Pt using Zen′s law (x = 0.57(1)). A single crystal of [(Pt(NH3)4)0.57(Pd(NH3)4)0.43]CrO4 and two samples of the synthesized product selected from the total mass are thermally decomposed in hydrogen. A study of thermolysis products by XRD, scanning and transmission electron microscopy methods demonstrates the formation of a Pt0.49Pd0.38Cr0.13 nanoalloy included in the Cr2O3 matrix in the form of blocks (~1 µm) and smaller (>2 nm) spherical formations.

KW - X-ray diffraction

KW - accuracy

KW - complex salts

KW - multicomponent nanoalloys

KW - single-component precursor

KW - thermal decomposition

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85173725536&origin=inward&txGid=b65392fa45f04f6d83b3ea37b5e2973d

UR - https://www.mendeley.com/catalogue/b772d24b-9d91-3592-a75f-32471311110e/

U2 - 10.1134/S0022476623090123

DO - 10.1134/S0022476623090123

M3 - Article

VL - 64

SP - 1686

EP - 1701

JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

SN - 0022-4766

IS - 9

ER -

ID: 59235328

PREPARATION OF NANOALLOYS OF THE Pt–Pd–Cr SYSTEM UNDER THERMAL DECOMPOSITION OF [(Pt(NH3)4)x(Pd(NH3)4)1–x]CrO4 COMPLEX SALTS

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