https://www.selleckchem.com/pr....oducts/Rapamycin.htm
71 to 2.16 nm were all ultra-small (more than half were nanoclusters less then 2 nm) and highly dispersed, owing to the high electrostatic attraction of the negatively charged hydroxyls and the anchoring effect of the micropores on the hydroxylated surface of the Janus SiNSs. Therefore, the Ag/xSn-SiNSs nanocomposites displayed better catalytic properties for 4-nitrophenol reduction than most Ag-based supported catalysts, and the optimal Ag/2.4Sn-SiNSs catalyst exhibited quick reaction within 80 s and turnover frequency (TOF) of 3.34
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