Abstract
Gold nanoclusters stabilized by high-viscosity hydrophilic polymers such as poly(N-vinyl-2-pyrrolidone) (K-90) (Au:PVP K-90) and star-shaped polymers (Au:star poly(MOVE)200) were prepared in a continuous flowing process using a microflow reactor. Two types of metal/stainless steel-free microflow reactors (techno-applications COMET X-1 and Sigma-Aldrich type S02) were selected to avoid contamination with other metals. The resultant Au:PVP(K-90) and Au:star poly(MOVE)200 clusters were significantly smaller with a narrower size distribution than those prepared by the batch process.
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Acknowledgments
This work was supported by the JENESYS Program (Japan–East Asia Network of Exchange for Students and Youths) (from the Japan Society for the Promotion of Science (JSPS): WK and from Japan Student Services Organization (JASSO): VLM). We also thank Ms. Noriko Kai for technical assistance. Weeranuch Karuehanon supported by JSPS-JENESYS Programme. Vijay Laksami Mishra was supported by JASSO-JENESYS Programme.
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Haesuwannakij, S., Karuehanon, W., Mishra, V.L. et al. Size-controlled preparation of gold nanoclusters stabilized by high-viscosity hydrophilic polymers using a microflow reactor. Monatsh Chem 145, 23–28 (2014). https://doi.org/10.1007/s00706-013-1001-z
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DOI: https://doi.org/10.1007/s00706-013-1001-z