Yin Haixu, Yin Hengbo, Wang Aili, Shen Lingqin, Liu Ye, Zheng Yu
J Nanosci Nanotechnol. 2017 Feb;17(2):1255-266. doi: 10.1166/jnn.2017.12573.
Different-sized metallic Cu⁰ nanoparticles were prepared by the wet chemical reduction method with organic modifiers. The small-sized Cu⁰ nanoparticles (Cu(PEG)) prepared by using polyethylene glycol as the organic modifier exhibited high catalytic activity for the hydrothermal conversion of glycerol to lactic acid. When the reaction was carried out with the initial glycerol and NaOH concentrations of 1.0 and 1.1 mol L⁻¹ at 230 °C for 4 h, the lactic acid selectivity reached 91.9% at the glycerol conversion of 98.0%. Over CuPEG (36.9 nm) and Cublank (118.3 nm) catalysts, the reaction activation energies were 76.3 and 86.5 kJ mol⁻¹, respectively.
采用湿化学还原法并使用有机改性剂制备了不同尺寸的金属零价铜纳米颗粒。以聚乙二醇作为有机改性剂制备的小尺寸零价铜纳米颗粒（Cu(PEG)）对甘油水热转化为乳酸表现出高催化活性。当反应在初始甘油浓度为1.0 mol L⁻¹、氢氧化钠浓度为1.1 mol L⁻¹、230 °C下进行4小时时，甘油转化率为98.0%时乳酸选择性达到91.9%。在CuPEG（36.9 nm）和Cublank（118.3 nm）催化剂上，反应活化能分别为76.3和86.5 kJ mol⁻¹。
