Рубрики:
NANOPARTICLES
PALLADIUM
FULLERENE
ELECTRODE
NANOTUBES
OXIDATION
Кл.слова (ненормированные):
carbon nanomaterials -- platinum metal nanoparticles -- in situ one-step method
NANOPARTICLES
PALLADIUM
FULLERENE
ELECTRODE
NANOTUBES
OXIDATION
Кл.слова (ненормированные):
carbon nanomaterials -- platinum metal nanoparticles -- in situ one-step method
Аннотация: Carbon nanomaterials (fullerite, detonation nanodiamonds, Taunit, fullerenol, fullerene-containing black) were decorated with platinum group metal nanoparticles in situ in one step by low-temperature combustion (~250–270°С) of a powdered mixture of platinum metal acetylacetonate [Pt-M(асас)n, Pt-М = Pt(II), Pd(II), Rh(III), Ir(III), acac = CH3COCHCOCH3, n is the oxidation state of Pt-М] with carbon nanomaterials in air. As shown by thermal analysis, the process is based on thermal oxidative degradation of the organometallic complex, catalyzed by carbon nanomaterials, with oxidation (combustion) of the organic moiety and release of the metal into the condensed phase. The thermal process in an open system occurs in the glowing mode (210–250°С); the size of the nanoparticles formed is 7–30 nm. Under the conditions restricting the air access to the reaction mixture and free outflow of gaseous products formed by oxidation of acac ligands, the nanoparticle size decreases to 3–10 nm. The particle size depends on the metal amount in the initial powder mixture and on the support morphology.
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Держатели документа:
Russian Acad Sci, Kirenksy Inst Phys, Separate Dept, Fed Res Ctr,Krasnoyarsk Sci Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Isakova, V. G.; Исакова, Виктория Гавриловна; Osipova, I. V.; Осипова, Ирина Владимировна; Dudnik, A. I.; Дудник, Александр Иванович; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Zharikova, N. V.; Nemtsev, I. V.; Volochaev, M. N.; Center for Shared Use of the Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences