【摘要】 为采用钯金属纳米颗粒进行有机催化反应打下良好基础 ,采用了三缩四乙二醇作溶剂 ,制备了溶剂稳定的钯金属纳米颗粒 ,得到了分布比较均匀且粒径在 2～ 3nm范围内的钯金属纳米颗粒 .在此三缩四乙二醇兼具溶剂、还原剂和稳定剂的作用 ,并用紫外 -可见光谱及透射电子显微镜对其进行了表征 .所得的颗粒无需另加保护剂可在低温下贮存几天时间 ,并可为其直接负载在载体上作催化等进一步的研究 .更多还原

【Abstract】 Solvent-stabilized palladium nanoparticles were prepared in tetraethylene glycol. Tetraethylene glycol functionate as a solvent, reactant and a stabilizer simutaneously. The nanaoparticles so-prepared were narrowly dispersed with dimension of 2~3 nm.The palladium nanoparticles were characterized by UV-vis and TEM examination.They are stable for several days under low temperature or can be immobilized on supports for further catalysis study.更多还原