Issue 11, 2015

Solvothermal synthesis of hierarchical Eu2O3 nanostructures templated by PS-b-PMAA: morphology control via simple variation of water contents

Abstract

A new method to synthesize hierarchical Eu2O3 nanostructures via a solvothermal process in N,N′-dimethyl formamide (DMF) templated by an ionic amphiphilic diblock copolymer polystyrene-block-poly (methacrylic acid) (PS-b-PMAA) has been developed. By simply varying the mass ratio of H2O over DMF from 0 to 20 wt% in the polymer–salt mixed solution, a series of Eu2O3 morphologies including worm-like nanoparticles, nanoparticulate mesoporous microspheres, staggered sheets, and sheet-built microspheres are synthesized. The mechanism of the morphology control is the combined effect of both, guiding the europium salt in the PMAA domains of the micro-phase separated/self-assembled PS-b-PMAA, and the hydrolysis–condensation process associated with the solvothermal treatment step.

Graphical abstract: Solvothermal synthesis of hierarchical Eu2O3 nanostructures templated by PS-b-PMAA: morphology control via simple variation of water contents

Supplementary files

Article information

Article type
Communication
Submitted
25 des 2014
Accepted
04 feb 2015
First published
05 feb 2015

J. Mater. Chem. A, 2015,3, 5789-5793

Author version available

Solvothermal synthesis of hierarchical Eu2O3 nanostructures templated by PS-b-PMAA: morphology control via simple variation of water contents

Y. Xiao, X. Wang, T. Wagner, J. Thiel, Y. Yao, Y. Lin, E. Metwalli, R. Liu, H. J. Butt, P. Müller-Buschbaum, J. Meng, L. Chen, L. Sun, C. Yan and Y. Cheng, J. Mater. Chem. A, 2015, 3, 5789 DOI: 10.1039/C4TA07122K

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