Visible-light driven oxygen evolution over CoTiO3 perovskites via a modified Pechini method: impact of humidity on their phase composition

被引：16

作者：

Rasalingama, Shivatharsiny ^{[1
]}

Koodali, Ranjit T. ^{[2
]}

机构：

[1] Univ Jaffna, Dept Chem, Jaffna 40000, Sri Lanka

[2] Univ S Dakota, Dept Chem, Vermillion, SD 57069 USA

来源：

CRYSTENGCOMM | 2016年 / 18卷 / 06期

关键词：

SOL-GEL METHOD; REACTION-KINETICS; NANOPARTICLES; NITIO3; OXIDE; ACID; CO;

D O I：

10.1039/c5ce02452h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A set of CoTiO3 materials were synthesized using a modified Pechini method under different relative humidity conditions. Humidity alters the structural composition of the final materials via changing the coordination and/or oxidation state of the cobalt ion (Co2+) in the precursor solution. The amount of CoTiO3 present in the composite material was found to be the key factor for the variation in the amount of oxygen evolved.

引用

页码：868 / 871

页数：4

共 26 条

[1] Novel sol-gel reversible thermochromic materials for environmental sensors [J].

Carmona, N. ;

Herrero-Hernandez, E. ;

Llopis, J. ;

Villegas, M. A. .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2008, 47 (01) :31-37

[2] New cubic perovskites for one- and two-photon water splitting using the computational materials repository [J].

Castelli, Ivano E. ;

Landis, David D. ;

Thygesen, Kristian S. ;

Dahl, Soren ;

Chorkendorff, Ib ;

Jaramillo, Thomas F. ;

Jacobsen, Karsten W. .

ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (10) :9034-9043

[3] Enhanced Surface Reaction Kinetics and Charge Separation of p-n Heterojunction Co3O4/BiVO4 Photoanodes [J].

Chang, Xiaoxia ;

Wang, Tuo ;

Zhang, Peng ;

Zhang, Jijie ;

Li, Ang ;

Gong, Jinlong .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (26) :8356-8359

[4] Preparation and gas-sensing properties of nano-CoTiO3 [J].

Chu, XF ;

Liu, XQ ;

Wang, GZ ;

Meng, GY .

MATERIALS RESEARCH BULLETIN, 1999, 34 (10-11) :1789-1795

[5] Synthesis and characterizations of CoTiO3-clay nanocomposites by sol-gel method [J].

Enhessari, M. ;

Moqhadam, S. Nazari ;

Razi, M. Kargar ;

Ghezelbashi, S. ;

Tootkani, M. Habibi .

INTERNATIONAL JOURNAL OF NANO DIMENSION, 2010, 1 (02) :125-132

[6] Magnetic properties and heat capacity of CoTiO3 nanopowders prepared by stearic acid gel method [J].

Enhessari, M. ;

Parviz, A. ;

Ozaee, K. ;

Karamali, E. .

JOURNAL OF EXPERIMENTAL NANOSCIENCE, 2010, 5 (01) :61-68

[7] CoTiO3 via cobalt oxalate-TiO2 precursor. Synthesis and characterization [J].

Gabal, M. A. ;

Hameed, S. A. ;

Obaid, A. Y. .

MATERIALS CHARACTERIZATION, 2012, 71 :87-94

[8] Effect of copper doping on CoTiO3 ilmenite type nanoparticles for removal of congo red from aqueous solution [J].

Hashemian, Saeedeh ;

Foroghimoqhadam, Asiah .

CHEMICAL ENGINEERING JOURNAL, 2014, 235 :299-306

[9] Synthesis and characterisation of CoTiO3 powders prepared via sol-gel method [J].

He, H. Y. .

POWDER METALLURGY, 2008, 51 (03) :224-226

[10] Humidity sensitivity of CoTiO3 thin film prepared by sol-gel method [J].

He, H. Y. .

MATERIALS TECHNOLOGY, 2007, 22 (02) :95-97

← 1 2 3 →