Nanoscale structural disorder in manganese oxide particles embedded in Nafion

被引：24

作者：

Chang, Shery L. Y. ^{[1
,2
,3
]}

Singh, Archana ^{[1
]}

Hocking, Rosalie K. ^{[4
]}

Dwyer, Christian ^{[2
,3
]}

Spiccia, Leone ^{[1
]}

机构：

[1] Monash Univ, Sch Chem, Clayton, Vic, Australia

[2] Forschungszentrum Juelich, Ernst Ruska Ctr, Julich, Germany

[3] Forschungszentrum Juelich, Peter Gruenberg Inst, Julich, Germany

[4] James Cook Univ, Sch Pharm & Molecula Sci, Discipline Chem, Townsville, Qld 4811, Australia

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 11期

基金：

澳大利亚研究理事会;

关键词：

WATER-OXIDATION CATALYSIS; OXYGEN; NANOPARTICLES; NANOSHEETS; MNO2; PH;

D O I：

10.1039/c3ta14738j

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：

Earlier studies have shown that manganese oxide particles derived from a manganese molecular complex embedded in a Nafion film have one order of magnitude higher water-oxidation catalytic activity per manganese compared to many unsupported solid-state manganese oxide particles. Using transmission electron microscopy and electron scattering simulations, we have shown that the sodium-birnessite phase particles in Nafion exhibit an exceptionally high degree of layer mis-registration, and a high concentration of Mn vacancies, compared to the synthetic birnessite nanoparticles. It is therefore proposed that the differences in the activities correlate with the degree of disorder in the manganese oxide particles.

引用

收藏

页码：3730 / 3733

页数：4

相关论文

共 32 条

[1] Splitting Water with Cobalt [J].

Artero, Vincent ;

Chavarot-Kerlidou, Murielle ;

Fontecave, Marc .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (32) :7238-7266

[2] Nanostructured MnO2: an efficient and robust water oxidation catalyst [J].

Boppana, Venkata Bharat Ram ;

Jiao, Feng .

CHEMICAL COMMUNICATIONS, 2011, 47 (31) :8973-8975

[3] Molecular water-oxidation catalysts for photoelectrochemical cells [J].

Brimblecombe, Robin ;

Dismukes, G. Charles ;

Swiegers, Gerhard F. ;

Spiccia, Leone .

DALTON TRANSACTIONS, 2009, (43) :9374-9384

[4] Catalytic water oxidation at single metal sites [J].

Cao, Rui ;

Lai, Wenzhen ;

Du, Pingwu .

ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (08) :8134-8157

[5] Nickel-borate oxygen-evolving catalyst that functions under benign conditions [J].

Dinca, Mircea ;

Surendranath, Yogesh ;

Nocera, Daniel G. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2010, 107 (23) :10337-10341

[6] Nonaqueous synthesis of manganese oxide nanoparticles, structural characterization, and magnetic properties [J].

Djerdj, Igor ;

Arcon, Denis ;

Jaglicic, Zvonko ;

Niederberger, Markus .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (09) :3614-3623

[7] Highly active screen-printed electrocatalysts for water oxidation based on β-manganese oxide [J].

Fekete, Monika ;

Hocking, Rosalie K. ;

Chang, Shery L. Y. ;

Italiano, Cristina ;

Patti, Antonio F. ;

Arena, Francesco ;

Spiccia, Leone .

ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (07) :2222-2232

[8] Structure of synthetic K-rich birnessite obtained by high-temperature decomposition of KMnO4.: I.: Two-layer polytype from 800°C experiment [J].

Gaillot, AC ;

Flot, D ;

Drits, VA ;

Manceau, A ;

Burghammer, M ;

Lanson, B .

CHEMISTRY OF MATERIALS, 2003, 15 (24) :4666-4678

[9] A Bifunctional Nonprecious Metal Catalyst for Oxygen Reduction and Water Oxidation [J].

Gorlin, Yelena ;

Jaramillo, Thomas F. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (39) :13612-13614

[10]

Hocking RK, 2011, NAT CHEM, V3, P461, DOI [10.1038/nchem.1049, 10.1038/NCHEM.1049]

← 1 2 3 4 →