The nature of phase separation in a Ru-Sn-O ternary oxide electrocatalyst - Details

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Abstract：

A　phase　stability　diagram　of　ruthenium-zirconium　oxide　(Ru-Sn-O)　was　constructed　by　a　combination　of　ab　initio　density　functional　theory　and　thermodynamic　calculations.　Results　suggest　that　the　phase　separation/　segregation　that　has　been　reported　in　the　literature　for　the　RuO　2-SnO2　system　is　through　a　typical　spinodal　decomposition　mechanism.　Ru0.45Sn0.55O2　films　were　prepared　by　thermal　co-decomposition　of　precursors　at　500　°C　for　varied　duration.　Quantitative　phase　analyses　of　the　prepared　films　based　on　X-ray　diffraction　and　high-resolution　transmission　electron　microscopy　confirmed　the　spinodal　nature　of　the　phase　separation.　The　present　fundamental　study　provides　a　theoretical　guideline　for　the　phase　and　microstructure　design　of　Ru-Sn-O　based　mixed　oxides　for　electrocatalysis　applications.　©　the　Owner　Societies　2013.

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[ 1 ] [Wang, X.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
[ 2 ] [Deng, F.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
[ 3 ] [Tang, Z.]Institute of Materials Research, Fuzhou University, Fuzhou, Fujian 350108, China
[ 4 ] [Wu, B.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
[ 5 ] [Tang, D.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
[ 6 ] [Tang, D.]Institute of Materials Research, Fuzhou University, Fuzhou, Fujian 350108, China
[ 7 ] [Lin, W.]Institute of Materials Research, Fuzhou University, Fuzhou, Fujian 350108, China
[ 8 ] [Lin, W.]School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States
[ 9 ] [Lin, W.]International Business Machines (IBM), Albany Nanotechnology Center, Albany, NY 12203, United States

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[Tang, D.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China

Email：

tangdian@fzu.edu.cn

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Physical Chemistry Chemical Physics

ISSN： 1463-9076

Year： 2013

Issue： 11

Volume： 15

Page： 3977-3984

4 . 1 9 8

JCR@2013

2 . 9 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：2

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ESI Highly Cited Papers on the List： 0 Unfold All

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