The behaviour of an old catalyst revisited in a wet environment: Co ions in APO-5 split water under mild conditions

被引：8

作者：

Bonelli, Barbara ^{[1
,2
]}

Armandi, Marco ^{[1
,2
,3
]}

Hernandez, Simelys ^{[3
]}

Vankova, Svetoslava ^{[1
,2
]}

Celasco, Edvige ^{[1
,2
,4
]}

Tomatis, Maura ^{[5
,6
]}

Saracco, Guido ^{[1
,2
]}

Garrone, Edoardo ^{[1
,2
]}

机构：

[1] Politecn Torino, Dept Appl Sci & Technol, I-10129 Turin, Italy

[2] Politecn Torino, INSTM Unit Torino Politecn, I-10129 Turin, Italy

[3] Ist Italiano Tecnol, IIT Polito, Ctr Space Human Robot, I-10129 Turin, Italy

[4] Univ Genoa, Dept Phys, I-16146 Genoa, Italy

[5] Univ Turin, Dept Chem, I-10125 Turin, Italy

[6] Univ Turin, G Scansetti Interdept Ctr Studies Asbestos & Othe, I-10125 Turin, Italy

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2014年 / 16卷 / 15期

关键词：

OXYGEN-EVOLVING CENTER; X-RAY PHOTOELECTRON; MOLECULAR-SIEVES; OXIDATION CATALYST; COBALT; ZEOLITES; COAPO-5; DECOMPOSITION; SPECTROSCOPY; SENSITIZER;

D O I：

10.1039/c4cp00320a

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：

Samples of the activated microporous aluminophosphate Co-APO-5, featuring ca. 20% of Co3+ cations, when immersed in water evolve molecular oxygen at room temperature in an endothermic process, without the need for either light or a sacrificial reactant. Successive drying of the sample at temperatures around 520 K releases molecular hydrogen, with recovery of the initial conditions. Several hydration-dehydration cycles may be performed without loss of activity, i.e. water is split in a thermal cycle under relatively mild conditions.

引用

页码：7074 / 7082

页数：9

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