Published July 2008 | Version v1
Journal article Metadata-only

Formation of Pt-Ru alloy nanoparticles in a carbon matrix under IR pyrolysis conditions

Creators

  • 1. RAN, Inst. Neftekhimicheskogo Sinteza im. A.V. Topchieva, Moscow (Russian Federation)
  • 2. Moskovskij Gosudarstvennyj Inst. Stali i Splavov (Tekhnologicheskij Univ.), Moscow (Russian Federation)

Description

Nano-sized Pt-Ru alloy and Pt13Ru27 intermetallic compound particles dispersed in a carbon matrix were obtained for the first time directly during the preparation of the composite. The alloying of the Pt and Ru particles occurred at IR pyrolysis intensities corresponding to temperatures above 700 deg C over the whole homogeneity range of solid solutions based on platinum. Metallic nanoparticles were round-shaped (the mean size 6-8 nm) and had a narrow particle-size distribution

Abstract (Russian)

Впервые непосредственно в процессе приготовления композита получены наноразмерные частицы сплава Pt-Ru и интерметаллида Pt13Ru27, диспергированные в углеродной матрице. Установлено, что сплавообразование частиц Pt и Ru происходит при интенсивностях ИК-пиролиза, соответствующих температурам >700 град С и во всем интервале гомогенности твердых растворов на основе платины. Металлические наночастицы имеют округлую форму (средний размер 6-8 нм) и узкое распределение по размерам

Additional details

Additional titles

Original title (Russian)
Формирование наночастиц сплава Пт-Ру в углеродной матрице в условиях IK-пиролиза

Publishing Information

Journal Title
Zhurnal Fizicheskoj Khimii
Journal Volume
82
Journal Issue
7
Journal Page Range
p. 1327-1330
ISSN
0044-4537
CODEN
ZFKHA9

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
40088742
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CARBON; CHEMICAL PREPARATION; COMPOSITE MATERIALS; INFRARED RADIATION; INTERMETALLIC COMPOUNDS; PARTICLE SIZE; PHASE STUDIES; PLATINUM ALLOYS; PYROLYSIS; RUTHENIUM ALLOYS; SOLID SOLUTIONS; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
Descriptors DEC
ALLOYS; CHEMICAL REACTIONS; COHERENT SCATTERING; DECOMPOSITION; DIFFRACTION; DISPERSIONS; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; ELEMENTS; HOMOGENEOUS MIXTURES; MATERIALS; MICROSCOPY; MIXTURES; NONMETALS; PLATINUM METAL ALLOYS; RADIATIONS; SCATTERING; SIZE; SOLUTIONS; SYNTHESIS; TEMPERATURE RANGE; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
4 refs., 6 figs., 1 tab.