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author:

Li, Y. (Li, Y..) [1] | Wang, X. (Wang, X..) [2] | Shao, Y. (Shao, Y..) [3] | Tang, D. (Tang, D..) [4] | Wu, B. (Wu, B..) [5] | Tang, Z. (Tang, Z..) [6] | Lin, W. (Lin, W..) [7]

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Abstract:

The phase diagram of Ru-Ce-O was calculated by a combination of ab initio density functional theory and thermodynamic calculations. The phase diagram indicates that the solubility between ruthenium oxide and cerium oxide is very low at temperatures below 1100 K. Solid solution phases, if existing under normal experimental conditions, are metastable and subject to a quasi-spinodal decomposition to form a mixture of a Ru-rich rutile oxide phase and a Ce-rich fluorite oxide phase. To study the spinodal decomposition of Ru-Ce-O, Ru0.6Ce0.4O2 samples were prepared at 280°C and 450°C. XRD and in situ TEM characterization provide proof of the quasi-spinodal decomposition of Ru0.6Ce0.4O2. The present study provides a fundamental reference for the phase design of the Ru-Ce-O electro-catalyst. © the Owner Societies 2015.

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  • [ 1 ] [Li, Y.]College of Material Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
  • [ 2 ] [Wang, X.]College of Material Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
  • [ 3 ] [Shao, Y.]College of Material Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
  • [ 4 ] [Tang, D.]College of Material Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
  • [ 5 ] [Tang, D.]Institute of Materials Research, Fuzhou University, Fuzhou, Fujian 350108, China
  • [ 6 ] [Wu, B.]Institute of Materials Research, Fuzhou University, Fuzhou, Fujian 350108, China
  • [ 7 ] [Tang, Z.]Institute of Materials Research, Fuzhou University, Fuzhou, Fujian 350108, China
  • [ 8 ] [Lin, W.]Institute of Materials Research, Fuzhou University, Fuzhou, Fujian 350108, China
  • [ 9 ] [Lin, W.]International Business Machines (IBM), Albany Nanotechnology Center, Albany, NY 12203, United States

Reprint 's Address:

  • [Wang, X.]College of Material Science and Engineering, Fuzhou UniversityChina

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Source :

Physical Chemistry Chemical Physics

ISSN: 1463-9076

Year: 2015

Issue: 2

Volume: 17

Page: 1156-1164

4 . 4 4 9

JCR@2015

2 . 9 0 0

JCR@2023

ESI HC Threshold:265

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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