Influence of the method of platinum deposition on activity and stability of Pt/TiO2 photocatalysts in the photocatalytic oxidation of dimethyl methylphosphonate

Ekaterina A. Kozlova; Tatyana P. Lyubina; Maxim A. Nasalevich; Alexander V. Vorontsov; Alexander V. Miller; Vasily V. Kaichev; Valentin N. Parmon

doi:10.1016/j.catcom.2010.12.007

Influence of the method of platinum deposition on activity and stability of Pt/TiO₂ photocatalysts in the photocatalytic oxidation of dimethyl methylphosphonate

Ekaterina A. Kozlova
, Tatyana P. Lyubina
, Maxim A. Nasalevich
, Alexander V. Vorontsov
, Alexander V. Miller
, Vasily V. Kaichev
, Valentin N. Parmon

نتاج البحث: نشر في مجلة › مقالة › مراجعة النظراء

65 اقتباسات (Scopus)

ملخص

Gas-phase photocatalytic oxidation of organophosphorous compound dimethyl methylphosphonate was carried out in a flow reactor on platinized TiO ₂ Degussa P25. Platinization was performed by soft chemical reduction (SCR) and photodeposition (PD) techniques. Dispersion and chemical state of platinum were studied by X-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HRTEM). It was found that SCR gave mostly metallic platinum, whereas PD gave only Pt²⁺ form. During the oxidation, the state of platinum on a SCR catalyst remained unchanged, which determined its good stability. The catalyst with PD platinum deactivated quite fast due to aggregation of Pt particles. The SCR technique was found to provide better stability and activity.

اللغة الأصلية	الإنجليزيّة
الصفحات (من إلى)	597-601
عدد الصفحات	5
دورية	Catalysis Communications
مستوى الصوت	12
رقم الإصدار	7
المعرِّفات الرقمية للأشياء	https://doi.org/10.1016/j.catcom.2010.12.007
حالة النشر	نُشِر - 10 مارس 2011
منشور خارجيًا	نعم

الوصول إلى المستند

10.1016/j.catcom.2010.12.007

الملفات والروابط الأخرى

Link to publication in Scopus

قم بذكر هذا

Kozlova, E. A., Lyubina, T. P., Nasalevich, M. A., Vorontsov, A. V., Miller, A. V., Kaichev, V. V., & Parmon, V. N. (2011). Influence of the method of platinum deposition on activity and stability of Pt/TiO₂ photocatalysts in the photocatalytic oxidation of dimethyl methylphosphonate. Catalysis Communications, 12(7), 597-601. https://doi.org/10.1016/j.catcom.2010.12.007

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title = "Influence of the method of platinum deposition on activity and stability of Pt/TiO2 photocatalysts in the photocatalytic oxidation of dimethyl methylphosphonate",

abstract = "Gas-phase photocatalytic oxidation of organophosphorous compound dimethyl methylphosphonate was carried out in a flow reactor on platinized TiO 2 Degussa P25. Platinization was performed by soft chemical reduction (SCR) and photodeposition (PD) techniques. Dispersion and chemical state of platinum were studied by X-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HRTEM). It was found that SCR gave mostly metallic platinum, whereas PD gave only Pt2+ form. During the oxidation, the state of platinum on a SCR catalyst remained unchanged, which determined its good stability. The catalyst with PD platinum deactivated quite fast due to aggregation of Pt particles. The SCR technique was found to provide better stability and activity.",

keywords = "CWA, Organophosphorous compounds, Photocatalytic oxidation, Pt/TiO",

author = "Kozlova, \{Ekaterina A.\} and Lyubina, \{Tatyana P.\} and Nasalevich, \{Maxim A.\} and Vorontsov, \{Alexander V.\} and Miller, \{Alexander V.\} and Kaichev, \{Vasily V.\} and Parmon, \{Valentin N.\}",

year = "2011",

month = mar,

day = "10",

doi = "10.1016/j.catcom.2010.12.007",

language = "אנגלית",

volume = "12",

pages = "597--601",

journal = "Catalysis Communications",

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number = "7",

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Kozlova, EA, Lyubina, TP, Nasalevich, MA, Vorontsov, AV, Miller, AV, Kaichev, VV & Parmon, VN 2011, 'Influence of the method of platinum deposition on activity and stability of Pt/TiO₂ photocatalysts in the photocatalytic oxidation of dimethyl methylphosphonate', Catalysis Communications, المجلد 12, رقم 7, الصفحات 597-601. https://doi.org/10.1016/j.catcom.2010.12.007

Influence of the method of platinum deposition on activity and stability of Pt/TiO₂ photocatalysts in the photocatalytic oxidation of dimethyl methylphosphonate. / Kozlova, Ekaterina A.; Lyubina, Tatyana P.; Nasalevich, Maxim A. وآخرون.
في: Catalysis Communications, المجلد 12, رقم 7, 10.03.2011, صفحة 597-601.

نتاج البحث: نشر في مجلة › مقالة › مراجعة النظراء

TY - JOUR

T1 - Influence of the method of platinum deposition on activity and stability of Pt/TiO2 photocatalysts in the photocatalytic oxidation of dimethyl methylphosphonate

AU - Kozlova, Ekaterina A.

AU - Lyubina, Tatyana P.

AU - Nasalevich, Maxim A.

AU - Vorontsov, Alexander V.

AU - Miller, Alexander V.

AU - Kaichev, Vasily V.

AU - Parmon, Valentin N.

PY - 2011/3/10

Y1 - 2011/3/10

N2 - Gas-phase photocatalytic oxidation of organophosphorous compound dimethyl methylphosphonate was carried out in a flow reactor on platinized TiO 2 Degussa P25. Platinization was performed by soft chemical reduction (SCR) and photodeposition (PD) techniques. Dispersion and chemical state of platinum were studied by X-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HRTEM). It was found that SCR gave mostly metallic platinum, whereas PD gave only Pt2+ form. During the oxidation, the state of platinum on a SCR catalyst remained unchanged, which determined its good stability. The catalyst with PD platinum deactivated quite fast due to aggregation of Pt particles. The SCR technique was found to provide better stability and activity.

AB - Gas-phase photocatalytic oxidation of organophosphorous compound dimethyl methylphosphonate was carried out in a flow reactor on platinized TiO 2 Degussa P25. Platinization was performed by soft chemical reduction (SCR) and photodeposition (PD) techniques. Dispersion and chemical state of platinum were studied by X-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HRTEM). It was found that SCR gave mostly metallic platinum, whereas PD gave only Pt2+ form. During the oxidation, the state of platinum on a SCR catalyst remained unchanged, which determined its good stability. The catalyst with PD platinum deactivated quite fast due to aggregation of Pt particles. The SCR technique was found to provide better stability and activity.

KW - CWA

KW - Organophosphorous compounds

KW - Photocatalytic oxidation

KW - Pt/TiO

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SN - 1566-7367

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