(北京科技大學(xué) 材料科學(xué)與工程學(xué)院北京市
表面納米技術(shù)工程研究中心, 北京 100083)
摘 要: 以次亞磷酸鈉為還原劑, 通過(guò)控制液相還原反應(yīng)條件, 從硫酸鎳溶液中制備出納米鎳磷合金粉。 研究了超聲波功率、 冷卻方式、 包覆劑用量等因素對(duì)鎳磷合金粉的形貌、 尺寸和分布以及包覆后的納米鎳磷合金粉的抗氧化性的影響。 激光粒度分析儀分析表明粉末粒徑分布均勻, 中值粒徑為50~65nm; TEM和XRD檢測(cè)結(jié)果顯示這種粉末粒子呈類(lèi)球形, 為非晶態(tài)結(jié)構(gòu)。
關(guān)鍵字: 納米鎳磷合金粉; 超聲波; 液相還原; 非晶態(tài)
using ultrasonic chemistry reduction in aqueous solution
MENG Hui-ming,Li Huei-qin, SUN Dong-bai
(Research Center of Nano Surface Technology Engineering BeijingMaterial Science and Engineering department, University of Science and Technology Beijing,
Beijing 100083, China)
Abstract:Nanostructured nickel-phosphorous powders were prepared using ultrasonic chemistry reduction in nickel sulfate solution. The influence of ultrasonic powder, cooling method and dosage of encapsulation on the morphological, size and distribution of Ni-P nano powders were analyzed. The average size of these powders was estimated at 50~65nm. These particles are spherical and amorphous.
Key words: Ni-P nano powder; ultrasonic; chemical reduction; amorphous


