TY - JOUR
T1 - Layer-by-Layer Synthesis of Conformal Metal-Organic Framework Shells on Gold Nanorods
AU - Hinman, Joshua G.
AU - Turner, Jacob G.
AU - Hofmann, Daniel M.
AU - Murphy, Catherine J.
N1 - Funding Information:
The authors thank the National Science Foundation for its support of this work under Grant 1608743. The authors also thank Dr. Yurun Miao for his help with N2 adsorption measurements as well as Dr. Nathan Burrows, Christian Franco, and Shabana Malik for their help with synthesis. Powder XRD was performed in the George L. Clark X-ray Facility and 3M Materials Laboratory. N2 adsorption measurements were collected in the Microanalysis Laboratory, School of Chemical Sciences, University of Illinois at Urbana-Champaign. TEM was performed in the Frederick Seitz Materials Research Laboratory Central Research Facilities, University of Illinois at Urbana-Champaign.
Publisher Copyright:
Copyright © 2018 American Chemical Society.
PY - 2018/10/23
Y1 - 2018/10/23
N2 - Because of their possible use in a number of applications such as sensing and catalysis, hybrid materials of metal-organic frameworks (MOFs) with plasmonic nanoparticles have attracted the attention of many researchers. While there have been reports of the synthesis of MOF shells on colloidal metallic nanoparticles, they often provide little control over the thickness and morphology of the MOF shell. This report presents a layer-by-layer technique for synthesizing conformal shells of the MOF HKUST-1 on gold nanorods. The method described deposits the components of the MOF in a truly layer-by-layer fashion, which allows for subnanometer control over shell thickness. To synthesize conformal MOF shells, it is crucial to control the surface chemistry of the gold nanorods. By using the conjugate base of the organic linker, the surface charge could be controlled during synthesis, helping prevent nanorod aggregation.
AB - Because of their possible use in a number of applications such as sensing and catalysis, hybrid materials of metal-organic frameworks (MOFs) with plasmonic nanoparticles have attracted the attention of many researchers. While there have been reports of the synthesis of MOF shells on colloidal metallic nanoparticles, they often provide little control over the thickness and morphology of the MOF shell. This report presents a layer-by-layer technique for synthesizing conformal shells of the MOF HKUST-1 on gold nanorods. The method described deposits the components of the MOF in a truly layer-by-layer fashion, which allows for subnanometer control over shell thickness. To synthesize conformal MOF shells, it is crucial to control the surface chemistry of the gold nanorods. By using the conjugate base of the organic linker, the surface charge could be controlled during synthesis, helping prevent nanorod aggregation.
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U2 - 10.1021/acs.chemmater.8b03341
DO - 10.1021/acs.chemmater.8b03341
M3 - Article
AN - SCOPUS:85053605341
SN - 0897-4756
VL - 30
SP - 7255
EP - 7261
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 20
ER -