Water oxidation catalysis by using nano-manganese ferrite supported 1D-(tunnelled), 2D-(layered) and 3D-(spinel) manganese oxides

被引：61

作者：

Elmaci, Gokhan ^{[1
,3
]}

Frey, Carolin E. ^{[2
]}

Kurz, Philipp ^{[2
]}

Zumreoglu-Karan, Birgul ^{[1
]}

机构：

[1] Hacettepe Univ, Dept Chem, Beytepe Campus, TR-06800 Ankara, Turkey

[2] Univ Freiburg, Freiburger Mat Forschungszentrum FMF, Inst Anorgan & Analyt Chem, Albertstr 21, D-79104 Freiburg, Germany

[3] Adiyaman Univ, Dept Chem, TR-02040 Adiyaman, Turkey

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 22期

关键词：

OXYGEN EVOLUTION; BIRNESSITE; COMPLEX;

D O I：

10.1039/c6ta00593d

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：

We report a new series of core-shell composite catalysts obtained by supporting 1D-(tunnelled), 2D-(layered) and 3D-(spinel) manganese oxides on nano-manganese ferrite. All other factors being equal, magnetic 2D-MnOx structures carried out the chemical water oxidation reaction with Ce4+ at a higher efficiency than their 1D-, 3D- and non-magnetic counterparts. Ca-birnessite, when supported on a ferrite core, produced the highest amount of O-2 [3900 mmol (O-2) per mot (Mn) per hl normalized per mot of manganese in the catalysts. The composition and morphology parameters of the magnetic core-shell structures appeared to be important in determining the observed activity while no direct correlation was noted with the surface area.

引用

页码：8812 / 8821

页数：10

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