LaSrCo0.5Rh0.5O3.25 and LaSrNi0.5Rh0.5O3.25:Topochemically Reduced, Mixed Valence Rh(I)/Rh(III) Oxides

被引：4
|
作者：
Xu, Zheying [1 ]
Palgrave, Robert G. [2 ]
Hayward, Michael A. [1 ]
机构：
[1] Univ Oxford, Dept Chem, Inorgan Chem Lab, Oxford OX1 3QR, England
[2] UCL, Dept Chem, London WC1H 0AJ, England
来源：
INORGANIC CHEMISTRY | 2020年 / 59卷 / 18期
关键词：
CRYSTAL-STRUCTURE; CHARGE DISPROPORTIONATION; PD4+; PD2+;
D O I：
10.1021/acs.inorgchem.0c02131
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Topochemical reduction of the n = 1 RuddlesdenPopper phases LaSrCo(0.5)Rh0.5O4 and LaSrNi0.5Rh0.5O4 with Zr yields LaSrCo0.5Rh0.5O3.25 and LaSrN(i0.)5Rh(0.5)O(3.25), respectively. Magnetization and XPS data reveal that while the rhodium centers in LaSrCo0.5Rh0.5O3.25 and LaSrNi0.5Rh0.5O3.25 have an average oxidation state of Rh2+, these are actually mixed valence Rh(I,III) compounds, with the disproportionation of Rh2+ driven by the favorability of locating d8 Rh1+ and d6 Rh3+ cations within square-planar and square-based pyramidal coordination sites, respectively.
引用
收藏
页码：13767 / 13773
页数：7
相关论文
共 50 条
  • [1] Complex Magnetic Order in Topochemically Reduced Rh(I)/Rh(III) LaM0.5Rh0.5O2.25 (M = Co, Ni) Phases
    Xu, Zheying
    Thakur, Pardeep K.
    Lee, Tien-Lin
    Regoutz, Anna
    Suard, Emmanuelle
    Puente-Orench, Ines
    Hayward, Michael A.
    [J]. INORGANIC CHEMISTRY, 2022, 61 (39) : 15686 - 15692
  • [2] Structure and magnetism of the Rh4+-containing perovskite oxides La0.5Sr0.5Mn0.5Rh0.5O3 and La0.5Sr0.5Fe0.5Rh0.5O3
    Hasanli, Nijat
    Scrimshire, Alex
    Bingham, Paul A.
    Palgrave, Robert G.
    Hayward, Michael A.
    [J]. DALTON TRANSACTIONS, 2020, 49 (32) : 11346 - 11353
  • [3] Synthesis and Structural Studies of the Transition-Metal-Doped Rh Perovskites LaMn0.5Rh0.5O3 and LaCu0.5Rh0.5O3
    Ting, Jimmy
    Kennedy, Brendan J.
    Zhang, Zhaoming
    Avdeev, Maxim
    Johannessen, Bernt
    Jang, Ling-Yun
    [J]. CHEMISTRY OF MATERIALS, 2010, 22 (05) : 1640 - 1646
  • [4] Effect of O2, CO, and NO on Surface Segregation in a Rh0.5Pd0.5 Bulk Crystal and Comparison to Rh0.5Pd0.5 Nanoparticles
    Grass, Michael E.
    Park, Mita
    Aksoy, Fonda
    Zhang, Yawen
    Kunz, Martin
    Liu, Zhi
    Mon, Bongjin S.
    [J]. LANGMUIR, 2010, 26 (21) : 16362 - 16367
  • [5] Valence-state and spin-state transition of Co in LaCo0.5Rh0.5O3
    Liao, S-C
    Haw, S. C.
    Kuo, C. Y.
    Guo, H.
    Vasili, H. B.
    Valvidares, S. M.
    Komarek, A. C.
    Ishii, H.
    Chen, S. A.
    Lin, H. J.
    Tanaka, A.
    Chan, T. S.
    Tjeng, L. H.
    Chen, C. T.
    Hu, Z.
    Chen, J. M.
    [J]. PHYSICAL REVIEW B, 2019, 99 (07)
  • [6] Redox behavior of high surface area Rh-loaded Ce0.5Zr0.5O2 mixed oxide
    Fornasiero, P
    Kaspar, J
    Graziani, M
    [J]. JOURNAL OF CATALYSIS, 1997, 167 (02) : 576 - 580
  • [7] Structural and Transport properties of Pulsed Laser Deposited SrIr0.5Rh0.5O3 Thin Films
    Sardar, Suman
    Kinha, Monu
    Sharma, Siddharth
    Vagadia, Megha
    Rana, D. S.
    [J]. DAE SOLID STATE PHYSICS SYMPOSIUM 2018, 2019, 2115
  • [8] Morphology of rhodium particles in ex-chloride Rh/Ce0.5Zr0.5O2 catalyst
    Vlaic, G
    Fornasiero, P
    Martra, G
    Fonda, E
    Kaspar, J
    Marchese, L
    Tomat, E
    Coluccia, S
    Graziani, M
    [J]. JOURNAL OF CATALYSIS, 2000, 190 (01) : 182 - 190
  • [9] Syngas production from butane using a flame-made Rh/Ce0.5Zr0.5O2 catalyst
    Hotz, Nico
    Stutz, Michael J.
    Loher, Stefan
    Stark, Wendelin J.
    Poulikakos, Dimos
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 73 (3-4) : 336 - 344
  • [10] Autothermal reforming of methane over Rh/Ce0.5Zr0.5O2 catalyst: Effects of the crystal structure of the supports
    Cao, Lei
    Pan, Liwei
    Ni, Changjun
    Yuan, Zhongshan
    Wang, Shudong
    [J]. FUEL PROCESSING TECHNOLOGY, 2010, 91 (03) : 306 - 312
12345