PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O₂ catalysts

Highlights

• Pt/CZL exhibits the optimum catalytic performance for HC and NO_x elimination.

• The strong PM-Ce interaction favors the oxygen mobility and DOSC.

• Pd/CZL shows higher catalytic activity for CO conversion due to more O_latt species.

• Great oxygen mobility at high temperature broadens the dynamic operation window.

• The relationship between DOSC and catalytic performance is revealed.

Abstract

The physicochemical properties of Pt-, Pd- and Rh- loaded (Ce,Zr,La)O₂ (shorted for CZL) catalysts before/after aging treatment were systematically characterized by various techniques to illustrate the relationship of the dynamic oxygen storage/release capacity and redox ability with their catalytic performances for HC, NO_x and CO conversions. Pt/CZL catalyst exhibits the optimum catalytic performance for HC and NO_x elimination, which mainly contribute to its excellent redox ability and dynamic oxygen storage/release capacity (DOSC) at lower temperature due to the stronger PM (precious metals)-support interaction. However, the worse stability of Pt-O-Ce species and volatile Pt oxides easily result in the dramatical decline in catalytic activity after aging. Pd/CZL shows higher catalytic activity for CO conversion by reason of more O_latt species as the active oxygen for CO oxidation reaction. Rh/CZL catalyst displays the widest dynamic operation window for NO_x elimination as a result of greater oxygen mobility at high temperature, and the ability to retain more Rh-O-Ce species after calcined at 1100°C effectively restrains sintering of active RhO_x species, improving the thermal stability of Rh/CZL catalyst.

Graphical abstract

Keywords

Precious metal-loaded (Ce,Zr,La)O₂ catalysts / Oxygen mobility / Catalytic performance

References

[1] Azambre B, Atribak I, Bueno-Lopez A, Garcia-Garcia A (2010). Probing the surface of Ceria-Zirconia catalysts using NO_x adsorption/desorption: A first step toward the investigation of crystallite heterogeneity. Journal of Physical Chemistry C, 114(31): 13300–13312

[2] Ding Y, Wu Q, Lin B, Guo Y, Guo Y, Wang Y, Wang L, Zhan W (2020). Superior catalytic activity of a Pd catalyst in methane combustion by fine-tuning the phase of Ceria-Zirconia support. Applied Catalysis B: Environmental, 266: 118631–118642

[3] Dong F, Meng Y, Han W, Zhao H, Tang Z (2019). Morphology effects on surface chemical properties and lattice defects of Cu/CeO₂ catalysts applied for low-temperature CO oxidation. Scientific Reports, 9(1): 12056–12070

[4] Farrauto R J, Deeba M, Alerasool S (2019). Gasoline automobile catalysis and its historical journey to cleaner air. Nature Catalysis, 2(7): 603–613

[5] Fornasiero P, Kašpar J, Sergo V, Graziani M (1999). Redox behavior of high-surface-area Rh-, Pt-, and Pd-Loaded Ce_0.5Zr_0.5O₂ mixed oxide. Journal of Catalysis, 182(1): 56–69

[6] Gandhi H S, Graham G W, McCabe R W (2003). Automotive exhaust catalysis. Journal of Catalysis, 241: 273–287

[7] Gatica J, Baker R, Fornasiero P, Bernal S, Blanco G, Kašpar J (2000). Rhodium dispersion in a Rh/Ce_0.68Zr_0.32O₂ catalyst investigated by HR-TEM and H₂ chemisorption. Journal of Physical Chemistry B, 104(19): 4667–4672

[8] Gu Y, Shao S, Sun W, Xia H, Gao X, Dai Q, Zhan W, Wang X (2019). The oxidation of chlorinated organic compounds over W-modified Pt/CeO₂ catalysts. Journal of Catalysis, 380: 375–386

[9] Haneda M, Suzuki K, Sasaki M, Hamada H, Ozawa M (2014). Catalytic performance of bimetallic PtPd/Al₂O₃ for diesel hydrocarbon oxidation and its implementation by acidic additives. Applied Catalysis A, General, 475: 109–115

[10] He H, Dai H X, Ng L H, Wong K W, Au C T (2002). Pd-, Pt-, and Rh-Loaded Ce_0.6Zr_0.35Y_0.05O₂ three-way catalysts: an investigation on performance and redox properties. Journal of Catalysis, 206(1): 1–13

[11] Holmgren A, Andersson B, Duprez D (1999). Interactions of CO with Pt/Ceria catalysts. Applied Catalysis B: Environmental, 22(3): 215–230

[12] Hori C E, Brenner A, Simon Ng K Y, Rahmoeller K M, Belton D (1999). Studies of the oxygen release reaction in the Platinum±Ceria±Zirconia system. Catalysis Today, 50(2): 299–308

[13] Hosokawa S, Taniguchi M, Utani K, Kanai H, Imamura S (2005). Affinity order among noble metals and CeO₂. Applied Catalysis A, General, 289(2): 115–120

[14] Ikryannikova L, Markaryan G, Kharlanov A, Lunina E (2003). Electron-accepting surface properties of Ceria-(Praseodymia)-Zirconia solids modified by Y³⁺ or La³⁺ studied by paramagnetic probe method. Applied Surface Science, 207(1–4): 100–114

[15] Ilayaraja N, Prabu N, Lakshminarasimhan N, Murugan P, Jeyakumar D (2013). Au-Pt graded nano-alloy formation and its manifestation in small organics oxidation reaction. Journal of Materials Chemistry. A, Materials for Energy and Sustainability, 1(12): 4048–4056

[16] Jeong H, Kwon O, Kim B S, Bae J, Shin S, Kim H E, Kim J, Lee H (2020). Highly durable metal ensemble catalysts with full dispersion for automotive applications beyond single-atom catalysts. Nature Catalysis, 3(4): 368–375

[17] Jiang W, Xu B, Xiang Z, Liu X, Liu F (2016). Preparation and reactivity of UV light-reduced Pd/A-Fe₂O₃ catalyst towards the hydrogenation of O^- chloronitrobenzene. Applied Catalysis A, General, 520: 65–72

[18] Jin H, You R, Zhou S, Ma K, Meng M, Zheng L R, Hu T D (2015). In-situ DRIFTS and XANES identification of copper species in the ternary composite oxide catalysts CuMnCeO during CO preferential oxidation. International Journal of Hydrogen Energy, 40: 3919–3931

[19] Li K, Wang X, Zhou Z, Wu X, Weng D (2007). Oxygen storage capacity of Pt-, Pd-, Rh/CeO₂-based oxide catalyst. Journal of Rare Earths, 25(1): 6–10

[20] Li Z H, Geng Y, Ma L, Chen X Y, Li J H, Chang H Z, Schwank J W (2020). Catalytic oxidation of CO over Pt/Fe3O4 catalysts: Tuning O2 activation and CO adsorption. Frontiers of Environmental Science and Engineering, 14(4): 65

[21] Lin W, Zhu Y, Wu N, Xie Y, Murwani I, Kemnitz E (2004). Total oxidation of methane at low temperature over Pd/TiO₂/Al₂O₃: effects of the support and residual chlorine ions. Applied Catalysis B: Environmental, 50(1): 59–66

[22] López J M, Gilbank A L, García T, Solsona B, Agouram S, Torrente-Murciano L (2015). The prevalence of surface oxygen vacancies over the mobility of bulk oxygen in nanostructured ceria for the total toluene oxidation. Applied Catalysis B: Environmental, 174–175: 403–412

[23] Lu Z S, Yang Z X (2010). Interfacial properties of NM/CeO₂ (111) (NM=noble metal atoms or clusters of Pd, Pt and Rh): A first principle study. Journal of Physics Condensed Matter, 22(47): 475003–475012

[24] Luo J, Meng M, Li X, Li X, Zha Y, Hu T, Xie Y, Zhang J (2008). Mesoporous Co₃O₄-CeO₂ and Pd/Co₃O₄-CeO₂ catalysts: Synthesis, characterization and mechanistic study of their catalytic properties for low-temperature CO oxidation. Journal of Catalysis, 254(2): 310–324

[25] Ma J, Lou Y, Cai Y F, Zhao Z Y, Wang L, Zhan W C, Guo Y L, Guo Y (2018). The relationship between the chemical state of Pd species and the catalytic activity for methane combustion on Pd/CeO₂. Catalysis Science & Technology, 8(10): 2567–2577

[26] Martínez-Arias A, Fernández-García M, Hungría A B, Iglesias-Juez A, Duncan K, Smith R, Anderson J A, Conesa J C, Soria J (2001). Effect of thermal sintering on light-off performance of Pd/(Ce,Zr)O_x/Al₂O₃ three-way catalysts: Model gas and engine tests. Journal of Catalysis, 204(1): 238–248

[27] Nagao Y, Nakahara Y, Sato T, Iwakura H, Takeshita S, Minami S, Yoshida H, Machida M (2015). Rh/ZrP₂O₇ as an efficient automotive catalyst for NO_x reduction under slightly lean conditions. ACS Catalysis, 5(3): 1986–1994

[28] Ozawa M, Takahashi-Morita M, Kobayashi K, Haneda M (2017). Core-Shell type Ceria Zirconia support for Platinum and Rhodium three-way catalysts. Catalysis Today, 281: 482–489

[29] Piumetti M, Bensaid S, Russo N, Fino D (2015). Nanostructured Ceria-based catalysts for soot combustion: investigations on the surface sensitivity. Applied Catalysis B: Environmental, 165: 742–751

[30] Shelef M, Graham G W (1994). Why Rhodium in automotive three-way catalysts. Catalysis Reviews, 36(3): 433–457

[31] Song S, Wu Y, Ge S, Wang L, Wang Y, Guo Y, Zhan W, Guo Y (2019). A facile way to improve Pt atom efficiency for CO oxidation at low temperature: modification by transition metal oxides. ACS Catalysis, 9(7): 6177–6187

[32] Wang J Q, Zhang B Y, Shen M Q, Wang J, Wang W L, Ma J, Liu S X, Jia L W (2011). Effects of Fe-doping of ceria-based materials on their microstructural and dynamic oxygen storage and release properties. Journal of Sol-Gel Science and Technology, 58(1): 259–268

[33] Wang Q Y, Li G F, Zhao B, Shen M Q, Zhou R X (2010). The effect of La doping on the structure of Ce_0.2Zr_0.8O₂ and the catalytic performance of its supported Pd-only three-way catalyst. Applied Catalysis B: Environmental, 101(1–2): 150–159

[34] Wang T, Zhou R (2020). Oxygen mobility and microstructure properties-redox performance relationship of Rh/(Ce,Zr,La)O₂ catalyst. Environmental Pollution, 258: 113782–113791

[35] Yang L Y, Yang X, Lin S Y, Zhou R X (2015). Insight into the role of a structural promoter (Ba) in three-way catalyst Pd/CeO₂-ZrO₂ using in situ DRIFTS. Catalysis Science & Technology, 5(5): 2688–2695

[36] Zhao B, Yang C, Wang Q, Li G, Zhou R (2010). Influence of thermal treatment on catalytic performance of Pd/(Ce,Zr)O_x-Al₂O₃ three-way catalysts. Journal of Alloys and Compounds, 494(1–2): 340–346

[37] Zhu H, Qin Z, Shan W, Wang J (2004). Pd/CeO₂-TiO₂ catalyst for CO oxidation at low temperature: A TPR study with H₂ and CO as reducing agents. Journal of Catalysis, 225(2): 267–277

Acknowledgements

This work was supported by Key Program of Science Technology Department of Zhejiang Province (No.2018C03037).

Conflict of Interest

The authors declare that they have no conflict of interest.

Electronic Supplementary Material

Supplementary material is available in the online version of this article at https://doi.org/10.1007/s11783-020-1369-z and is accessible for authorized users.

RIGHTS & PERMISSIONS

2020 Higher Education Press