人工晶体学报
人工晶體學報
인공정체학보
2009年
3期
738-741
,共4页
纳米氧化铜%固相反应%微波辐照%乙醇
納米氧化銅%固相反應%微波輻照%乙醇
납미양화동%고상반응%미파복조%을순
nanopowder CuO%solid state reaction%microwave irradiation%ethanol
将固体CuSO4·5H2O和Na2CO3混合均匀后溶于适量乙醇中,然后进行微波辐照,立即反应生成泥浆状固体,将该泥浆状固体洗涤后干燥即可得到粉状前驱体.然后在600 ℃加热1 h分解该前驱体,即可制得纳米氧化铜粉体.在加热速率为10 ℃/min的条件下,对该前驱体进行表征,发现其热分解和晶体化温度约为550 ℃.对制得的纳米氧化铜粉体进行XRD、SEM、TEM和IR分析,结果表明制得的产物为纳米氧化铜粉体,其粉体粒径在30～50 nm,平均粒径约为40 nm.
將固體CuSO4·5H2O和Na2CO3混閤均勻後溶于適量乙醇中,然後進行微波輻照,立即反應生成泥漿狀固體,將該泥漿狀固體洗滌後榦燥即可得到粉狀前驅體.然後在600 ℃加熱1 h分解該前驅體,即可製得納米氧化銅粉體.在加熱速率為10 ℃/min的條件下,對該前驅體進行錶徵,髮現其熱分解和晶體化溫度約為550 ℃.對製得的納米氧化銅粉體進行XRD、SEM、TEM和IR分析,結果錶明製得的產物為納米氧化銅粉體,其粉體粒徑在30～50 nm,平均粒徑約為40 nm.
장고체CuSO4·5H2O화Na2CO3혼합균균후용우괄량을순중,연후진행미파복조,립즉반응생성니장상고체,장해니장상고체세조후간조즉가득도분상전구체.연후재600 ℃가열1 h분해해전구체,즉가제득납미양화동분체.재가열속솔위10 ℃/min적조건하,대해전구체진행표정,발현기열분해화정체화온도약위550 ℃.대제득적납미양화동분체진행XRD、SEM、TEM화IR분석,결과표명제득적산물위납미양화동분체,기분체립경재30～50 nm,평균립경약위40 nm.
Nanopowder copper oxide (CuO) crystals have been successfully prepared by decompose of the precursor which was made from the solid state reaction of CuSO4·5H2O and Na2CO3 in the solvent of ethylene glycol under microwave irradiation and then be washed. Then, the precursor was calcined at 600 ℃ for 1 h to obtain nanopowder CuO. The precursor was characterized by TG-DTA at a heating rate of 10 ℃/min in dry air to determine the thermal decomposition and crystallization temperature which was found to be at ～550 ℃. The calcined nanopowders CuO were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and fourier transmission infrared (FT-IR) spectroscopy. The results show that the nanopowder CuO consisted of the mixture of nanoparticles with particles size of 30-50 nm,and the average diameter of the particles was about 40 nm.
