Solute diffusion of platinum in rutile titanium dioxide

被引：0
|
作者：
机构：
[1] Sheppard, Leigh R.
[2] Lamo, Marta Bello
[3] Holik, John
[4] Mayfield, Kirsty J.
[5] Nelson, David R.
来源：
Sheppard, L.R. (L.Sheppard@uws.edu.au) | 1600年 / Blackwell Publishing Inc., Postfach 10 11 61, 69451 Weinheim, Boschstrabe 12, 69469 Weinheim, Deutschland, 69469, Germany卷 / 96期
关键词：
195Pt solute diffusion coefficients in undoped single-crystal rutile TiO2 have been determined parallel to the c-axis over the temperature range of 1073-1523 K and oxygen partial pressure of 101 kPa. This has yielded the following temperature dependence: D195Pt=1.3±3.2×10-13m2s -1exp/(-122.0±13.6kJmol-1/RT) On the basis of this result; it has been concluded that 195Pt diffuses via an interstitial mechanism involving rapid transport parallel to the c-axis through open interstitial diffusion channels. While other divalent cations have also displayed diffusion via the same mechanism; and report diffusion rates that greatly exceed that for cation self-diffusion; the overall rate of 195Pt diffusion is slow. This has been attributed to the size of Pt2+ (0.80 Å) which is comparative to the dimension of interstitial channels (0.77 Å) through which transport is believed to be taking place. © 2012 The American Ceramic Society;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 50 条
  • [41] A COMMENT ON THE INTERACTION OF BENZENE WITH THE SURFACE OF TITANIUM-DIOXIDE (RUTILE)
    RIVESARNAU, V
    LANGMUIR, 1988, 4 (06) : 1375 - 1376
  • [42] HEAT CAPACITIES AT LOW TEMPERATURES OF TITANIUM DIOXIDE (RUTILE AND ANATASE)
    SHOMATE, CH
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1947, 69 (02) : 218 - 219
  • [43] Niobium Segregation in Niobium-Doped Titanium Dioxide (Rutile)
    Atanacio, Armand J.
    Bak, Tadeusz
    Nowotny, Janusz
    JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (21): : 11174 - 11185
  • [44] In vitro effects of titanium dioxide (rutile and anatase) on bovine alveolar
    Schimmelpfeng, J., 1600, (21):
  • [45] {110}-exposed rutile titanium dioxide nanorods in photocatalytic performance
    Ke, Tsung-Ying
    Peng, Chih-Wei
    Lee, Chi-Young
    Chiu, Hsin-Tien
    Sheu, Hwo-Shuenn
    CRYSTENGCOMM, 2009, 11 (08): : 1691 - 1695
  • [46] Synthesis of few-to-monolayer graphene on rutile titanium dioxide
    Bansal, Tanesh
    Durcan, Christopher A.
    Jain, Nikhil
    Jacobs-Gedrim, Robin B.
    Xu, Yang
    Yu, Bin
    CARBON, 2013, 55 : 168 - 175
  • [47] THE MEASUREMENT OF EXCHANGEABLE HYDROGEN ASSOCIATED WITH TITANIUM-DIOXIDE (RUTILE)
    BROOKES, BI
    KEMBALL, C
    LEACH, HF
    JOURNAL OF CHEMICAL RESEARCH-S, 1988, (04): : 112 - 113
  • [48] Synthesis of rutile titanium dioxide from Russian raw materials
    Gerasimova L.G.
    Shchukina E.S.
    Maslova M.V.
    Gladkikh S.N.
    Garaeva G.R.
    Kolobkova V.M.
    Polymer Science, Series D, 2017, 10 (1) : 23 - 27
  • [49] Dielectric and conductivity investigations of Rutile Titanium dioxide single crystals
    Ben Omar, M.
    Matoussi, A.
    2012 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (CEIDP), 2012, : 467 - 470
  • [50] Improving the Activity of Rutile Titanium Dioxide with Reduced Graphene Oxide
    Yuliati, Leny
    Alim, Nor Shuhada
    Lintang, Hendrik O.
    PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON APPLIED CHEMISTRY (ISAC) 2017, 2017, 1904
12345