详细信息
吸附在纤维素纳米晶体表面的银/钯合金纳米粒子的制备 被引量:2
Preparation of Silver/Palladium Alloy Nanoparticals on the Surface of Cellulose Nanocrystal
文献类型:期刊文献
中文题名:吸附在纤维素纳米晶体表面的银/钯合金纳米粒子的制备
英文题名:Preparation of Silver/Palladium Alloy Nanoparticals on the Surface of Cellulose Nanocrystal
第一作者:刘鹤
机构:[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室
年份:2009
卷号:29
期号:B10
起止页码:87-90
中文期刊名:林产化学与工业
外文期刊名:Chemistry and Industry of Forest Products
收录:CSTPCD;;Scopus;北大核心:【北大核心2008】;CSCD:【CSCD_E2011_2012】;
基金:中央级公益性科研院所基本科研业务费专项资金资助(CAFYBB2007030);国家863计划资助(2007AA10074)
语种:中文
中文关键词:纤维素纳米晶体;纳米粒子;Ag/Pd合金
外文关键词:cellulose nanocrystal ; nanoparticals ; Ag/Pd alloy
分类号:TQ351.0
摘要:以硼氢化钠为还原剂通过共还原金属离子,制备了吸附于纤维素纳米晶体表面的Ag/Pd合金纳米粒子。纤维素纳米晶体起到了分散剂的作用,使制备的合金纳米粒子在溶液中具有良好的分散性和稳定性。使用紫外可见分光光度计(UV)和透射电子显微镜(TEM)对Ag/Pd合金的悬浮液进行了检测,用X射线衍射(XRD)对干燥的纤维素与合金的复合物进行了表征。研究表明制备的纳米粒子粒径均小于5.5 nm,粒径随着Pd物质的量的增加而增大。
Uniform Ag/Pd alloy nanoparticles absorbed on the surface of cellulose nanocrystal (CNC) were prepared by chemical reduction of metallic cations using NaBH4. CNC played a role of a dispersant to obtain stable dispersions of alloy nanoparticles. Aqueous suspensions of Ag/Pd alloy nanoparticles was detected by UV-vis spectroscopy and transmission electron microscopy (TEM), and the dried nanocomposites was characterized by X-ray diffraction (XRD). The average sizes of alloy nanoparticles were below 5.5 nm and their average diameter was increased with an increase of Pd content.
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