Mixed layered Ni-Mn-Co hydroxides: Crystal structure, electronic state of ions, and thermal decomposition

被引：132

作者：

Kosova, N. V. ^{[1
]}

Devyatkina, E. T. ^{[1
]}

Kaichev, V. V. ^{[2
]}

机构：

[1] SB RAS, Inst Solid State Chem & Mechanochem, Novosibirsk 630128, Russia

[2] SB RAS, Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

Ni-Co-Mn layered hydroxides; LDHs; mixed-valence materials; crystal structure; XPS; thermal decomposition;

D O I：

10.1016/j.jpowsour.2007.06.109

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

It has been shown that varying conditions of co-precipitation processes, two types of mixed Ni-Mn-Co hydroxides: either brucite, or hydrotalcite-like (LDHs)-with different Ni/Mn/Co ratio can be prepared. According to XPS study, these hydroxides are mixed-valence materials: Ni ions present in 2(+) oxidation state, whereas Mn and Co ions are in 3(+)/4(+) and 2(+)/3(+) state, respectively; their oxidation state increases with an increase of their content in hydroxides. For Ni-rich hydroxides, a strong effect of nickel segregation is observed indicating that chemistry of the surface and of the bulk is different. Mixed Ni-Mn-Co hydroxides decompose in two steps resulting in fort-nation of NiO bunsenite and (Ni,Co,Mn)(3)O-4 spinel. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：735 / 740

页数：6

共 31 条

[1] Rotor blade grinding and re-annealing of LiCoO2:: SEM, XPS, EIS and electrochemical study [J].

Alcántara, R ;

Ortiz, GF ;

Lavela, P ;

Tirado, JL ;

Jaegermann, W ;

Thissen, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 584 (02) :147-156

[2] Valence-band x-ray photoelectron spectroscopic studies of manganese and its oxides interpreted by cluster and band structure calculations [J].

Audi, AA ;

Sherwood, PMA .

SURFACE AND INTERFACE ANALYSIS, 2002, 33 (03) :274-282

[3] Synthesis and characterization of new hydrotalcite-like compounds containing Ni(II) and Mn(III) in the hydroxide layers and of their calcination [J].

Barriga, C ;

Fernandez, JM ;

Ulibarri, MA ;

Labajos, FM ;

Rives, V .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 124 (02) :205-213

[4] The formation and characterisation of Ni3+ -: an X-ray photoelectron spectroscopic investigation of potassium-doped Ni(110)-O [J].

Carley, AF ;

Jackson, SD ;

O'Shea, JN ;

Roberts, MW .

SURFACE SCIENCE, 1999, 440 (03) :L868-L874

[5] Synthesis and characterization of LiCoxMnyNi1-x-yO2 as a cathode material for secondary lithium batteries [J].

Chen, Y ;

Wang, GX ;

Konstantinov, K ;

Liu, HK ;

Dou, S .

JOURNAL OF POWER SOURCES, 2003, 119 :184-188

[6] Synthesis, thermal, and electrochemical properties of AlPO4-coated LiNi0.8Co0.1Mn0.1O2 cathode materials for a Li-ion cell [J].

Cho, J ;

Kim, TJ ;

Kim, J ;

Noh, M ;

Park, B .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (11) :A1899-A1904

[7] IRON-SUBSTITUTED NICKEL OXYHYDROXIDES AND HYDROXIDES OBTAINED BY CHIMIE-DOUCE [J].

DEMOURGUESGUERLOU, L ;

BRACONNIER, JJ ;

DELMAS, C .

JOURNAL OF SOLID STATE CHEMISTRY, 1993, 104 (02) :359-367

[8] PREPARATION AND CHARACTERIZATION OF COBALT-SUBSTITUTED ALPHA-NICKEL HYDROXIDES STABLE IN KOH MEDIUM .1. ALPHA'-HYDROXIDE WITH AN ORDERED PACKING [J].

FAURE, C ;

DELMAS, C ;

FOUASSIER, M ;

WILLMANN, P .

JOURNAL OF POWER SOURCES, 1991, 35 (03) :249-261

[9] NEW MANGANESE-SUBSTITUTED NICKEL HYDROXIDES .2. INTERSTRATIFICATION PROCESS UPON AGING [J].

GUERLOUDEMOURGUES, L ;

DELMAS, C .

JOURNAL OF POWER SOURCES, 1994, 52 (02) :275-281

[10] NEW MANGANESE-SUBSTITUTED NICKEL HYDROXIDES .1. CRYSTAL-CHEMISTRY AND PHYSICAL CHARACTERIZATION [J].

GUERLOUDEMOURGUES, L ;

DENAGE, C ;

DELMAS, C .

JOURNAL OF POWER SOURCES, 1994, 52 (02) :269-274

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