Solid-State Transformations in Inner Coordination Sphere of [Co(NH3)6][Fe(C2O4)3].3H2O as a Route to Access Catalytically Active Co-Fe Materials

被引：10

作者：

Domonov, Denis P. ^{[1
]}

Pechenyuk, Sophia I. ^{[1
]}

Semushina, Yulia P. ^{[1
]}

Yusenko, Kirill V. ^{[2
]}

机构：

[1] RAS, KSC ICTREMR, IV Tananaev Inst Chem & Technol Rare Elements & M, Akademgorodok 26a, Apatity 184209, Murmansk Region, Russia

[2] BAM Fed Inst Mat Res & Testing, Richard Willstatter Str 11, D-12489 Berlin, Germany

来源：

MATERIALS | 2019年 / 12卷 / 02期

关键词：

double complex salts; coordination sphere; catalyst; single-source precursor; thermal decomposition; THERMAL-DECOMPOSITION; OXIDATIVE THERMOLYSIS; AMMONIUM-PERCHLORATE; BINARY COMPLEXES; PRODUCTS; PRECURSORS; CATALYSTS;

D O I：

10.3390/ma12020221

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：

Thermal decomposition of [Co(NH3)(6)][Fe(C2O4)(3)].3H(2)O in argon atmosphere, at a low heating rate (3 degrees/min), and in large amounts of the initial complex (0.1 mole), has been studied. It was possible to distinguish four decomposition steps upon heating: In the temperature range of 50-100 degrees Cthe loss of crystal water; 100-190 degrees Cstability region of dehydrated complex; 230-270 degrees Cthe range of stability of intermediate phase with the formula CoFe(NH3)(2)(C2O4)(2); 270-350 degrees Cthermal decomposition of the intermediate with the formation of metallic products and further air oxidation with the formation of Co1.5Fe1.5O4. Catalytic properties of thermolysis products were tested in the decomposition reaction of H2O2 (inactive), oxidation of acetone (average activity), and decomposition of ammonium perchlorate (highly active).

引用

页数：10

共 21 条

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