以次磷酸钠为还原剂制备纳米铜粉_姜雄华.pdfVIP

无机盐工业 第 38卷第 5期 34 INORGANI HEM I ALS INDUSTRY 2006年 5月 , , , (, 530004) : : 0. 08~ 0. 5 mol/L, 0. 4 ~ 1 mol/L, 35 /m in, 0. 3% , 50 e , pH= 2. 0, 0. 5~ 2 g XRDTEM , ,, u O 2 : ; ; : TQ131. 2 : A : 1006- 4990( 2006) 05- 0034- 03 T he preparation of nanom eter copper powders by using NaH PO as reduc tan t 2 2 Jiang X ionghua, L i henghai, Dong L ihu,i QiuYounan (College of Chemical ChemicalEng ineering, Guangxi University, GuangxiN anning 530004, China) A bstrac :t The preparation of nanometer copper pow der by chem ical reduction combined w ith homogeneous precipitat-i onmethod is studied. The NaH PO is used as reductant in the expermi ent. The optmi um conditions are obtained as follow- 2 4 ing: the concentration of uSO andNaH PO 0. 08~ 0. 5mol/L and0. 4~ 1mol/L respectively, the adding speed of reduc- 4 2 2 tant 35 drop/m in, the ratio of surfactant to raw material 0. 3% , reaction temperature 50 e , pH 2. 0 and the amount of (N aPO ) 0. 5~ 2 g. The productprepared isproved to be nanometer copper pow der through the analysis ofXRD andTEM. 3 6 It is unstable in the air and easy to be oxidated into u O. 2 K ey w ord s: copper powder; liquid phase reductionmethod; homogeneous precipitationmethod , , , , SXJQ- 1, , , XMT - 102, , H - 300