期刊
CHEMISTRYSELECT
卷 3, 期 31, 页码 8936-8941出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201801685
关键词
bimetallic nanoparticles; nuclear reactor; radioactive nanoparticles; radiolysis; nanoparticle synthesis
资金
- NRC [NRC-HQ-12-G-38-0075, NRC-HQ-13-G-38-0008, PPR-NRC-38-10-966]
- Materials Research Center (MRC) at Missouri ST
Synthesis of radioactive, bimetallic nanoparticles was successfully accomplished using the Missouri S&T research nuclear reactor (MSTR). Aqueous solutions of 2 mM gold chloride and 2 mM silver nitrate were prepared and mixed with a solution of 1 mM polyvinylpyrrolidone and 60 mM of 2-propanol. Four different samples with volume ratios of 70/30, 50/50, 30/70, and 0/100 of Au/Ag were irradiated at a reactor thermal power of 10 kW for 3 min. The morphology, crystal structure, and chemical composition of the resulting nanoparticles were characterized with Transmission Electron Microscopy (TEM), Gatan Microscopy Suite Software and the Java-based image-processing program ImageJ. It was found that the structure obtained depended on the composition of the irradiated sample, with production of core-shell and alloyed nanoparticles obtained at different conditions.
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