Physico-chemical and catalytic properties of effective nanostructured MnCeOx systems for environmental applications

被引：6

作者：

Arena, Francesco ^{[1
]}

Trunfio, Giuseppe ^{[1
]}

Negro, Jacopo ^{[1
]}

Saja, Cettina ^{[1
]}

Raneri, Antonino ^{[1
]}

Spadaro, Lorenzo ^{[1
]}

机构：

[1] Univ Messina, Dipartimento Chim Ind & Ingn Mat, I-98166 Messina, Italy

来源：

SCIENTIFIC BASES FOR THE PREPARATION OF HETEROGENEOUS CATALYSTS: PROCEEDINGS OF THE 10TH INTERNATIONAL SYMPOSIUM | 2010年 / 175卷

关键词：

oxide catalyst; nanostructure; dispersion; oxygen mobility; redox activity; WET OXIDATION; PHENOL;

D O I：

10.1016/S0167-2991(10)75092-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A synthesis route based on the occurrence of redox reactions between Mn-VII, Mn-II and Ce-III precursors leads to nanostructured MnCeOx systems with high surface area (120-250 m(2)/g) and a quasi-atomic dispersion of the active phase. Larger accessibility and higher oxidation state enhance the redox activity of the surface active Mn sites resulting in an improved mobility and availability of surface oxygen that greatly promotes the CO oxidation activity of the MnCeOx system at low temperature (20-150 degrees C).

引用

页码：493 / 496

页数：4

共 5 条

[1] Synthesis of highly dispersed MnCeOx catalysts via a novel "redox-precipitation" route
Arena, Francesco
Trunfio, Giuseppe
Negro, Jacopo
Spadaro, Lorenzo
[J]. MATERIALS RESEARCH BULLETIN, 2008, 43 (03) : 539 - 545
[2] Improved MnCeOx systems for the catalytic wet oxidation (CWO) of phenol in wastewater streams
Arena, Francesco
Negro, Jacopo
Parmaliana, Adolfo
Spadaro, Lorenzo
Trunfio, Giuseppe
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (21) : 6724 - 6731
[3] Basic evidence of the molecular dispersion of MnCeOx catalysts synthesized via a novel "Redox-Precipitation" route
Arena, Francesco
Trunfio, Giuseppe
Negro, Jacopo
Fazio, Barbara
Spadaro, Lorenzo
[J]. CHEMISTRY OF MATERIALS, 2007, 19 (09) : 2269 - 2276
[4] Nanosize Effects, Physicochemical Properties, And Catalytic Oxidation Pattern of the Redox-Precipitated MnCeOx System
Arena, Francesco
Trunfio, Giuseppe
Fazio, Barbara
Negro, Jacopo
Spadaro, Lorenzo
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (07) : 2822 - 2829
[5] Optimization of the MnCeOx system for the catalytic wet oxidation of phenol with oxygen (CWAO)
Arena, Francesco
Trunfio, Giuseppe
Negro, Jacopo
Spadaro, Lorenzo
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 85 (1-2) : 40 - 47

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