Issue 9, 2011
From the journal:

Nanoscale

Dual lanthanide role in the designed synthesis of hollow metal coordination (Prussian Blue analogue) nanocages with large internal cavity and mesoporous cage†

Ronan McHale,a   Yibo Liu,a   Negar Ghasdian,a   Nicole S. Hondow,b   Sunjie Ye,c   Yun Lu,c   Rik Brydsonb  and  Xiaosong Wang*ad  

* Corresponding authors

a Department of Colour Science, School of Chemistry, University of Leeds, UK
E-mail: xiaosong.wang@uwaterloo.ca

b Institute for Materials Research (SPEME), University of Leeds, UK

c Department of Polymer Science and Engineering, State Key Lab of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China

d Department of Chemistry, Waterloo Institute of Nanotechology, University of Waterloo, 200 University Avenue West Waterloo, ON, Canada

Abstract

Prussian Blue (PB) analogue metal coordination nanocages comprised of mesoporous walls (ca. 3.5 nm pore width) encapsulating a cavity approaching ca. 100 nm in diameter (surfactant free) are presented as an advance in rational metal coordination polymer nanostructure design. The synthesis employs lanthanide ions (Gd3+ or Er3+) which function initially as peripheral coordination crosslinkers of metallo-surfactant templated miniemulsion droplets, and, subsequently, as promoters in the removal of the organic component of those surfactantsvia metal-assisted ester hydrolysis. The success of this synthetic strategy relies entirely on the periphery coordination event occurring prior to the ester hydrolysis surfactant removal step. Crucially, this one-pot sequential synthesis was achieved using a newly developed metallo-surfactant designed to have a reduced ester hydrolysis rate. Syntheses of this innovative metallo-surfactant, intermediary PB analogue coordination polymer organo-nanoshells and the subsequent conversion to hollow metal coordination nanocages are fully characterised using a wide variety of techniques, including TEM, SEM, EFTEM, EDX, TGA, WAXD, NMR, N2 adsorption, etc., and represent the first designed synthesis of hollow metal coordination nanocages containing a large nanoscale cavity (wall of hollow nanosphere is mesoporous; hence nanocage).

Graphical abstract: Dual lanthanide role in the designed synthesis of hollow metal coordination (Prussian Blue analogue) nanocages with large internal cavity and mesoporous cage

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Article information

DOI
https://doi.org/10.1039/C1NR10337G
Article type
Paper
Submitted
30 Mar 2011
Accepted
02 Jun 2011
First published
29 Jul 2011

Nanoscale, 2011,3, 3685-3694

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Dual lanthanide role in the designed synthesis of hollow metal coordination (Prussian Blue analogue) nanocages with large internal cavity and mesoporous cage

R. McHale, Y. Liu, N. Ghasdian, N. S. Hondow, S. Ye, Y. Lu, R. Brydson and X. Wang, Nanoscale, 2011, 3, 3685 DOI: 10.1039/C1NR10337G

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