纺锤状CuO微结构的可控合成与表征

发布时间：2018-07-06 10:18

本文选题：氧化铜 + 水热法　；参考：《人工晶体学报》2017年08期

【摘要】：以NaOH、尿素为沉淀剂,Cu(NO_3)_2·3H_2O为铜源,采用水热法控制合成了一种纺锤状CuO微结构。采用XRD、SEM、TEM和HRTEM等手段对产物进行了表征和分析,结果表明该CuO呈单斜晶相且具有很高的结晶性。研究了反应体系p H值、尿素浓度、反应温度、反应时间等因素对CuO形貌的影响,结果表明改变NaOH与尿素的相对浓度能显著调变CuO的形貌,使其呈现出空心微球、花状以及纺锤状等结构。提出了纺锤状CuO微结构可能的生长机理。
[Abstract]:Using NaOH and urea as precipitant Cu (no _ 3) _ 2H _ 2O as copper source, a spindle-like CuO microstructure was synthesized by hydrothermal method. The products were characterized and analyzed by means of XRDX SEM TEM and HRTEM. The results show that the CuO is monoclinic and has high crystallinity. The effects of reaction system pH value, urea concentration, reaction temperature and reaction time on the morphology of CuO were studied. The results showed that the morphology of CuO could be changed significantly by changing the relative concentration of NaOH and urea. Flowers and spindles, etc. The possible growth mechanism of spindle-like CuO microstructures was proposed.
【作者单位】：遵义师范学院化学化工学院;中国科学院山西煤炭化学研究所煤转化国家重点实验室;
【基金】：贵州省科技厅项目(QKHJZ[2015]2145,QKHJC[2017]1208) 贵州省教育厅项目(QJHKYZ[2015]394,QJHKYZ[2016]093)
【分类号】：TQ131.21

【相似文献】