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微波辅助-水相共沉淀法纳米ITO粉体的制备及其表征朱协彬1,2,姜涛2,邱冠周2,黄伯云21. 安徽工程大学安徽高性能有色金属材料重点实验室2. 中南大学资源加工与生物工程学院摘 要:利用微波辅助-水相共沉淀法,在InCl3和SnCl4混和溶液中添加PEG-6000,并滴加体积比1∶4浓度的氨水,并在不同反应温度(35~75℃)下制备了ITO前驱体,在温度800℃煅烧1h后得到纳米ITO粉体.利用SEM对纳米ITO粉体的形貌进行表征,用XRD对其结构,晶粒度和堆垛层数进行了表征,同时用纳米粒度Zeta电位分析仪对相应颗粒度进行了测试.讨论了微波辅助下不同反应体系温度对制备的纳米ITO粉体的形貌和尺寸的影响,并探讨了其机理,研究结果表明,随着反应体系温度的上升,纳米ITO粉体形貌由球形转为棒形,其晶体结......
Dynamic test on waste heat recovery system with organic Rankine cycleWANG Zhi-qi(王志奇)1, 2, LIU Li-wen(刘力文)1, XIA Xiao-xia(夏小霞)1, ZHOU Nai-jun(周乃君)2(1. Institute of Mechanical Engineering, Xiang Tan... and monitoring of the organic Rankine cycle(ORC) system so to avoid the occurrence of unwanted conditions. A small scale waste heat recovery system with organic Rankine cycle was constructed and the dynamic......
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Effect of inoculation during different phases ofagricultural waste composting on spectroscopic characteristics of humic acidHUANG Hong-li(黄红丽)1, ZENG Guang-ming(曾光明)2, 3, LUO Lin(罗琳)1, ZHANG Jia... phases of agricultural waste composting and its effect on the spectroscopic characterization of humic acid (HA) was studied. Three runs were used in this study: Run A was the control without inoculating......
Biosorption behaviors of Cu2+, Zn2+, Cd2+ and mixture by waste activated sludge LUO Sheng-lian(罗胜联)1, 2, YUAN Lin(袁 林)1, CHAI Li-yuan(柴立元)1, MIN Xiao-bo(闵小波)1, WANG Yun-yan(王云燕)1, FANG Yan(方 艳)1... 410082, China Received 27 April 2006; accepted 12 September 2006 Abstract: Biosorption of heavy metal ions, such as Cu2+, Cd2+ and Zn2+, was carried out using waste activated sludge from municipal......
溶胶凝胶模板法合成ITO纳米管及其氢敏性能 孙银弟1,孙超1,叶枫1,张海礁1,周玉1,孟庆昌1,徐慧芳1 (1.哈尔滨工业大学,黑龙江,哈尔滨,150001) 摘要:采用简单的溶胶凝胶阳极氧化铝模板法制备了ITO纳米管.通过FE-SEM,HRTEM,XRD对其微观形貌,结构,相组成等进行了表征和分析,并测试了其对H_2的气敏特性.结果表明,所得纳米管是由10~20 nm晶粒组成的多晶结构,壁厚约为25 nm,平均直径约250 nm,与AAO (Anodic Aluminum Oxide)模板的直径相同.产物在550 ℃热处理后为立方铁锰矿结构的In_2O_3,Sn~(4+)已经掺杂到In_2O_3的晶格中.所得ITO纳米管常温下对氢气具有较好的敏感性及稳定性. 关键词:ITO纳米管; 溶胶-凝胶; 模板法; 氢敏性能; ITO nanotubes; sol-gel; AAO......
淀积温度和氧含量对ITO膜结构及性能的影响 林钰1,辛荣生2,贾晓林2 (1.河南教育学院化学系,河南,郑州,450003;2.郑州大学材料工程学院,河南,郑州,450052) 摘要:在玻璃衬底上用直流磁控溅射的方法镀制ITO透明半导体膜, 采用X射线衍射技术分析了膜层晶体结构与温度和氧含量的关系, 并测量分析了薄膜电阻率及透光率分别随温度和氧含量的变化情况. 所镀制的ITO膜电阻率已降到＜2×10-4 Ω*cm, 可见光透过率达80%以上. 关键词:半导体; ITO膜; 磁控溅射; [全文内容正在添加中] ......
络盐法制备纳米晶铟锡氧化物(ITO)粉末陈林,吴伯麟摘 要:以纯铟,SnCl4.5H2O为原料,采用络盐法制备了一次晶粒平均尺寸小于15 nm,费氏粒度为148.5 nm,粒径分布较窄,在8003 600 cm-1间对红外光的吸收或反射率在90%以上的纳米晶铟锡氧化物(ITO)粉末.通过制备络合盐晶体(NH4)2InCl5.H2O和(NH4)2SnCl6,证实反应初始溶液中有络离子存在.研究了络离子本身以及分散剂聚乙烯吡咯烷酮对ITO粒径的影响.用XRD,红外光谱仪和激光粒度仪对ITO粉末进行了表征.结果表明:络离子浓度的增加有利于ITO粉末粒径的变小,分散剂的加入有利于ITO费氏粒度的减小.关键词:铟锡氧化物(ITO);纳米晶;络盐法;分散剂;络离子;......
纳米ITO粉体制备中试剂及影响因素的研究 刘大春1,冯同春1,杨斌1,郭亚琴1,徐宝强1 (1.昆明理工大学材料与冶金工程学院,昆明,650093) 摘要:铟锡氧化物(Indium tin oxide)是一种优良的透明导电氧化物材料.叙述并对比了目前制备ITO粉体的几种方法的优缺点.对其中的化学共沉淀法和化学滴定法,讨论了从铟锡化合物的物理化学性质来选择原料和沉淀剂,分析了制备过程中各种离子的浓度,沉淀时的温度,终点pH值,煅烧温度的范围及时间,分散剂等影响因素. 关键词:ITO粉体; 制备; 铟锡化合物; 影响因素; [全文内容正在添加中] ......
In open pit mines, sufficient quantity of waste must be removed each year to expose enough ore to meet the ore production target. Figure 1 shows an illustration of the relationship between waste...; (2) Comparing Wbt with Wt, one of the following three cases will occur. Case 1: Wbt=Wt. The capacity of Fbt exactly matches the waste removal target......
