Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Catalytic Abatement of VOC Over Novel Pt Fiberglass Catalysts. / Bal’zhinimaev, Bair S.; Kovalyov, Eugenii V.; Kaichev, Vasily V. и др.
в: Topics in Catalysis, Том 60, № 1-2, 02.2017, стр. 73-82.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Catalytic Abatement of VOC Over Novel Pt Fiberglass Catalysts
AU - Bal’zhinimaev, Bair S.
AU - Kovalyov, Eugenii V.
AU - Kaichev, Vasily V.
AU - Suknev, Alexey P.
AU - Zaikovskii, Vladimir I.
PY - 2017/2
Y1 - 2017/2
N2 - Nanostructured fiberglass based catalysts containing extra-low amount of Pt demonstrate high activity in the deep oxidation of propane. According to XPS and HAADF-STEM, highly dispersed 1–1.5 nm partially charged platinum species are confined in the bulk of fiberglass apparently as Pt2+–Pt0composites. Due to formation of Pt2+–Pt0species and involvement of molecular oxygen species in the reaction, which was proved by SSITKA studies with labeled oxygen, turnover frequency (TOF) of the deep oxidation of propane is 1–2 orders of magnitude higher than those for conventional supported Pt catalysts. It was also demonstrated that activity of fiberglass catalysts can be enhanced essentially when Pt is confined in the N-containing layer formed on the fiber surface via glass pretreatment with TMA hydroxide. The presence of TMA cations leads to the formation of more dispersed Pt species as compared to non-modified fiberglass and, as a consequence, to a twofold increase in the TOF of propane oxidation.
AB - Nanostructured fiberglass based catalysts containing extra-low amount of Pt demonstrate high activity in the deep oxidation of propane. According to XPS and HAADF-STEM, highly dispersed 1–1.5 nm partially charged platinum species are confined in the bulk of fiberglass apparently as Pt2+–Pt0composites. Due to formation of Pt2+–Pt0species and involvement of molecular oxygen species in the reaction, which was proved by SSITKA studies with labeled oxygen, turnover frequency (TOF) of the deep oxidation of propane is 1–2 orders of magnitude higher than those for conventional supported Pt catalysts. It was also demonstrated that activity of fiberglass catalysts can be enhanced essentially when Pt is confined in the N-containing layer formed on the fiber surface via glass pretreatment with TMA hydroxide. The presence of TMA cations leads to the formation of more dispersed Pt species as compared to non-modified fiberglass and, as a consequence, to a twofold increase in the TOF of propane oxidation.
KW - Deep propane oxidation
KW - Fiberglass
KW - Nanodispersed platinum
KW - SULFUR-DIOXIDE
KW - PLATINUM
KW - METHANE OXIDATION
KW - DEEP OXIDATION
KW - GLASS
KW - SUPPORT
KW - PD/FIBERGLASS CATALYSTS
KW - SELECTIVE HYDROGENATION
KW - RAY PHOTOELECTRON-SPECTROSCOPY
KW - PROPANE OXIDATION
UR - http://www.scopus.com/inward/record.url?scp=85013911217&partnerID=8YFLogxK
U2 - 10.1007/s11244-016-0718-4
DO - 10.1007/s11244-016-0718-4
M3 - Article
AN - SCOPUS:85013911217
VL - 60
SP - 73
EP - 82
JO - Topics in Catalysis
JF - Topics in Catalysis
SN - 1022-5528
IS - 1-2
ER -
ID: 10278875