AN XPS STUDY OF THE INTERACTION OF MODEL Ba/TiO_2 AND Ba/ZrO_2 NSR CATALYSTS WITH NO_2

M. Yu. Smirnov; A. V. Kalinkin; D. A. Nazimov; V. I. Bukhtiyarov; E. I. Vovk; E. Ozensoy

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AN XPS STUDY OF THE INTERACTION OF MODEL Ba/TiO_2 AND Ba/ZrO_2 NSR CATALYSTS WITH NO_2

机译：Ba / TiO_2和Ba / ZrO_2型NSR催化剂与NO_2相互作用的XPS研究。

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X-ray photoelectron spectroscopy is used to study the interaction of model NO_2 storage-reduction catalysts (NSR catalysts) Ba/TiO_2 and Ba/ZrO_2 with NO_2. The catalysts are prepared on the surface of ultrathin Al_2O_3 film substrates obtained by the FeCrAl alloy oxidation. It is shown that at room temperature the model catalysts react with NO_2 with the successive formation of surface barium nitrite and nitrate. The NO_2 reduction with the formation of barium nitrite at the initial step of the interaction is assumed to be accompanied by the oxidation of residual metallic barium and amorphous carbon impurity. It is found that the formation of barium nitrate proceeds more efficiently on Ba/ZrO_2 rather than on Ba/TiO_2.

机译：利用X射线光电子能谱研究了NO_2模型还原存储催化剂Ba / TiO_2和Ba / ZrO_2与NO_2的相互作用。在通过FeCrAl合金氧化获得的超薄Al_2O_3薄膜基材的表面上制备催化剂。结果表明，在室温下，模型催化剂与NO_2反应，依次形成表面亚硝酸钡和硝酸钡。相互作用的初始步骤中，随着亚硝酸钡的形成而导致的NO_2还原被认为伴随着残余金属钡和无定形碳杂质的氧化。发现硝酸钡的形成在Ba / ZrO_2上比在Ba / TiO_2上更有效地进行。

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《Journal of structural chemistry》 |2014年第4期|共7页
作者
M. Yu. Smirnov; A. V. Kalinkin; D. A. Nazimov; V. I. Bukhtiyarov; E. I. Vovk; E. Ozensoy;
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正文语种 eng
中图分类结构化学;
关键词
model NSR catalysts; reaction with NO_2; barium nitrite; barium nitrate; X-ray photoelectron spectroscopy.;

机译：NSR模型;与NO_2的反应;亚硝酸钡;硝酸钡;X射线光电子能谱;

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1. AN XPS STUDY OF THE INTERACTION OF MODEL Ba/TiO_2 AND Ba/ZrO_2 NSR CATALYSTS WITH NO_2 [J] . M. Yu. Smirnov, A. V. Kalinkin, D. A. Nazimov, Journal of structural chemistry . 2014,第4期

机译：Ba / TiO_2和Ba / ZrO_2型NSR催化剂与NO_2相互作用的XPS研究。
2. TiO_2 and ZrO_2 crystals in SB A-15 silica: performance of Pt/TiO_2(ZrO_2)/SBA-15 catalysts in ethyl acetate combustion [J] . Xueguang Wang, M.V.Landau, H.Rotter, Journal of Catalysis . 2004,第2期

机译：SB A-15二氧化硅中的TiO_2和ZrO_2晶体：乙酸乙酯燃烧中Pt / TiO_2（ZrO_2）/ SBA-15催化剂的性能
3. A comparative study of Pt/Ba/Al2O3 and Pt/Fe-Ba/Al2O3 NSR catalysts: New insights into the interaction of Pt-Ba and the function of Fe [J] . Luo JY, Meng M, Zha YQ, Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications . 2008,第1a2期

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4. Catalytic functionailities of TiO_2 based SiO_2, Al_2O_3, ZrO_2 mixed oxide hydroprocessing catalysts [C] . M.S. Rana, B.N. Srinivas, S.K. Maity, International symposium on hydrotreatment and hydrocracking of oil fractions . 1999

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5. Mechanistic and microkinetic studies of Nitrogen Oxide Storage and Reduction (NSR) on Platinum/Barium Oxide/AIuminum Trioxide Catalysts using Temporal Analysis of Products (TAP). [D] . Kumar, Ashok. 2010

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7. AN XPS study of the interaction of model Ba/TiO2 and Ba/ZrO2 NSR catalysts with NO2 [O] . Smirnov M.Y., Kalinkin A.V., Nazimov D.A., Bukhtiyarov V.I., Vovk E.I., Ozensoy E. 2014

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AN XPS STUDY OF THE INTERACTION OF MODEL Ba/TiO_2 AND Ba/ZrO_2 NSR CATALYSTS WITH NO_2

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