Efficient oxygen storage property of Sr-Fe mixed oxide as automotive catalyst support

被引：13
作者：
Beppu, Kosuke [1 ]
Hosokawa, Saburo [1 ,2 ]
Asakura, Hiroyuki [1 ,2 ]
Teramura, Kentaro [1 ,2 ]
Tanaka, Tsunehiro [1 ,2 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Mol Engn, Nishikyo Ku, Kyoto 6158510, Japan
[2] Kyoto Univ, ESICB, Nishikyo Ku, Kyoto 6158245, Japan
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2019年 / 7卷 / 03期
关键词：
NO REDUCTION; IRON-OXIDE; SENSORS; CO;
D O I：
10.1039/c8ta08378a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The efficiency of catalytic systems for the removal of nitrogen oxides (NOx) from automotive exhaust gases is strongly affected by the oxygen concentration in the exhaust gas. To overcome this problem, an oxygen storage material has been used in the purification systems. This study demonstrates the NO reduction under various oxygen concentrations over Pd/Sr3Fe2O7-delta catalysts in which Fe is partially replaced by other transition metals (Mn, Co, Ni, and Cu). Pd/Sr-3(Fe0.8Ni0.2)(2)O7-delta with a layered perovskite structure showed the highest NO reduction activity among the examined catalysts under a wide range of oxygen concentrations. Ni3+ was found to replace Fe3+ rather than Fe4+ in Sr3Fe2O7 delta. Pd/Sr-3(Fe0.8Ni0.2)(2)O-7 delta showed significantly improved oxygen storage capacity as compared to Pd/Sr3Fe2O7-delta, which was attributed to the redox between Ni3+ and Ni2+ accompanying the Fe4+/Fe3+ redox reaction during oxygen release/storage processes. This study provides useful information for the design of novel catalysts with a perovskite-type structure.
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收藏
页码：1013 / 1021
页数：9
相关论文
共 40 条
[1]   Isolation of active adsorbates for the NO-CO reaction on Pd/Al2O3 by selective enhancement and selective poisoning [J].
Almusaiteer, K ;
Chuang, SSC .
JOURNAL OF CATALYSIS, 1998, 180 (02) :161-170
[2]   In situ infrared study of catalytic decomposition of NO on carbon-supported Rh and Pd catalysts [J].
Almusaiteer, K ;
Krishnamurthy, R ;
Chuang, SSC .
CATALYSIS TODAY, 2000, 55 (03) :291-299
[3]   Striking Oxygen-Release/Storage Properties of Fe-Site-Substituted Sr3Fe2O7-δ [J].
Beppu, Kosuke ;
Hosokawa, Saburo ;
Demizu, Akito ;
Oshino, Yudai ;
Tamai, Kazuki ;
Kato, Kazuo ;
Wada, Kenji ;
Asakura, Hiroyuki ;
Teramura, Kentaro ;
Tanaka, Tsunehiro .
JOURNAL OF PHYSICAL CHEMISTRY C, 2018, 122 (21) :11186-11193
[4]   Pd/SrFe1-xTixO3-δ as Environmental Catalyst: Purification of Automotive Exhaust Gases [J].
Beppu, Kosuke ;
Demizu, Akito ;
Hosokawa, Saburo ;
Asakura, Hiroyuki ;
Teramura, Kentaro ;
Tanake, Tsunehiro .
ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (26) :22182-22189
[5]   Role of lattice oxygen and oxygen vacancy sites in platinum group metal catalysts supported on Sr3Fe2O7-δ for NO-selective reduction [J].
Beppu, Kosuke ;
Hosokawa, Saburo ;
Asakura, Hiroyuki ;
Teramura, Kentaro ;
Tanaka, Tsunehiro .
CATALYSIS SCIENCE & TECHNOLOGY, 2018, 8 (01) :147-153
[6]   Enhanced oxygen-release/storage properties of Pd-loaded Sr3Fe2O7-δ [J].
Beppu, Kosuke ;
Hosokawa, Saburo ;
Shibano, Takuya ;
Demizu, Akito ;
Kato, Kazuo ;
Wada, Kenji ;
Asakura, Hiroyuki ;
Teramura, Kentaro ;
Tanaka, Tsunehiro .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2017, 19 (21) :14107-14113
[7]   Oxygen storage capacity of Sr3Fe2O7-δ having high structural stability [J].
Beppu, Kosuke ;
Hosokawa, Saburo ;
Teramura, Kentaro ;
Tanaka, Tsunehiro .
JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (25) :13540-13545
[8]   Redox chemistry of CaMnO3 and Ca0.8Sr0.2MnO3 oxygen storage perovskites [J].
Bulfin, B. ;
Vieten, J. ;
Starr, D. E. ;
Azarpira, A. ;
Zachaeus, C. ;
Haevecker, M. ;
Skorupska, K. ;
Schmuecker, M. ;
Roeb, M. ;
Sattler, C. .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (17) :7912-7919
[9]   On the Reactivity of Carbon Supported Pd Nanoparticles during NO Reduction: Unraveling a Metal-Support Redox Interaction [J].
Castegnaro, Marcus V. ;
Kilian, Alex S. ;
Baibich, Ione M. ;
Alves, Maria C. M. ;
Morais, Jonder .
LANGMUIR, 2013, 29 (23) :7125-7133
[10]   Oxygen Storage Property and Chemical Stability of SrFe1-xTixO3-δ with Robust Perovskite Structure [J].
Demizu, Akito ;
Beppu, Kosuke ;
Hosokawa, Saburo ;
Kato, Kazuo ;
Asakura, Hiroyuki ;
Teramura, Kentaro ;
Tanaka, Tsunehiro .
JOURNAL OF PHYSICAL CHEMISTRY C, 2017, 121 (35) :19358-19364
1234