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Ce-Zr-La/Al2O3 prepared in a continuous stirred-tank reactor: A highly thermostable support for an efficient Rh-based three-way catalyst

Publication ,  Journal Article
Wang, SN; Lan, L; Hua, WB; Shi, ZH; Chen, YQ; Gong, MC; Zhong, L
Published in: Dalton Transactions
January 1, 2015

Two Ce-Zr-La/Al2O3 composite oxides, CZLA-C and CZLA-B, were synthesized using a co-precipitation method in a continuous stirred-tank reactor (CSTR) and a batch reactor (BR), respectively. Two Rh-based three-way catalysts (TWCs), Rh/CZLA-C and Rh/CZLA-B were obtained by a wet-impregnation method using the two composites as the supports. The physicochemical properties of the samples before and after thermal treatment at 1000 °C were characterized by N2 adsorption-desorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), H2-temperature programmed reduction (H2-TPR) and CO chemisorption. The results indicated that CZLA-C shows higher thermal stability than CZLA-B due to a sparsely-agglomerated morphology. Compared with Rh/CZLA-B, Rh/CZLA-C displayed better reducibility and higher thermal stability and exhibited significantly higher activity in the catalytic removal of the simulated gasoline vehicle exhaust emission (NO, CO and C3H8). Our work can provide a facile and economical synthesis route to advanced support materials and catalysts for exhaust emission control.

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Published In

Dalton Transactions

DOI

EISSN

1477-9234

ISSN

1477-9226

Publication Date

January 1, 2015

Volume

44

Issue

47

Start / End Page

20484 / 20492

Related Subject Headings

  • Inorganic & Nuclear Chemistry
  • 0399 Other Chemical Sciences
  • 0307 Theoretical and Computational Chemistry
  • 0302 Inorganic Chemistry
 

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Wang, S. N., Lan, L., Hua, W. B., Shi, Z. H., Chen, Y. Q., Gong, M. C., & Zhong, L. (2015). Ce-Zr-La/Al2O3 prepared in a continuous stirred-tank reactor: A highly thermostable support for an efficient Rh-based three-way catalyst. Dalton Transactions, 44(47), 20484–20492. https://doi.org/10.1039/c5dt02917a
Wang, S. N., L. Lan, W. B. Hua, Z. H. Shi, Y. Q. Chen, M. C. Gong, and L. Zhong. “Ce-Zr-La/Al2O3 prepared in a continuous stirred-tank reactor: A highly thermostable support for an efficient Rh-based three-way catalyst.” Dalton Transactions 44, no. 47 (January 1, 2015): 20484–92. https://doi.org/10.1039/c5dt02917a.
Wang SN, Lan L, Hua WB, Shi ZH, Chen YQ, Gong MC, et al. Ce-Zr-La/Al2O3 prepared in a continuous stirred-tank reactor: A highly thermostable support for an efficient Rh-based three-way catalyst. Dalton Transactions. 2015 Jan 1;44(47):20484–92.
Wang, S. N., et al. “Ce-Zr-La/Al2O3 prepared in a continuous stirred-tank reactor: A highly thermostable support for an efficient Rh-based three-way catalyst.” Dalton Transactions, vol. 44, no. 47, Jan. 2015, pp. 20484–92. Scopus, doi:10.1039/c5dt02917a.
Wang SN, Lan L, Hua WB, Shi ZH, Chen YQ, Gong MC, Zhong L. Ce-Zr-La/Al2O3 prepared in a continuous stirred-tank reactor: A highly thermostable support for an efficient Rh-based three-way catalyst. Dalton Transactions. 2015 Jan 1;44(47):20484–20492.
Journal cover image

Published In

Dalton Transactions

DOI

EISSN

1477-9234

ISSN

1477-9226

Publication Date

January 1, 2015

Volume

44

Issue

47

Start / End Page

20484 / 20492

Related Subject Headings

  • Inorganic & Nuclear Chemistry
  • 0399 Other Chemical Sciences
  • 0307 Theoretical and Computational Chemistry
  • 0302 Inorganic Chemistry