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Efficient Preparation of Silver Nanoplates Assisted by Non-polar Solvents by Lijian Huang; Yueming Zhai; Shaojun Dong; Jin Wang is a Chemistry article available to read on EtoBox.

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In the paper, we report an efficient method to prepare high yield (up to 97%) of silver nanoplates. Synthesis of silver nanoplates was carried out in a binary solvent system of N,N-dimethylformamide (DMF) and toluene, in which DMF served as the reductant and polyvinylpyrrolidone (PVP) as the capping agent. By increasing the ratio of toluene to DMF to 7:6, silver nanoplates can be successfully synthesized; otherwise other shaped nanoparticles would be the major products. The nanoplate sample was characterized by TEM, HRTEM, SAED, XRD, AFM and UV-visible spectroscopy, proving the high nanoplate purity of this sample. The influence of toluene content, other solvents, AgNO(3) concentration, preparation temperature and chloride ions was also examined, which suggests that the function of non-polar solvents in this system is to enhance the PVP coverage on silver surface and, furthermore, to facilitate the preferential adsorption of PVP on two (111) facets of silver nanoplates.

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Author

Lijian Huang; Yueming Zhai; Shaojun Dong; Jin Wang

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0021-9797)

Published

2009

Language

EN

Field

Chemistry (Physical Sciences)