Nano-sized carboxylates as anode materials for rechargeable lithium-ion batteries

Nano-sized caiboxylales Na2C7H3NO4 and Na2C6H2N2O4 were prepared and investigated as anode materials for lithium-ion batteries.Both carboxylates exhibit high reversible capacities around 190 mAh/g above a cut-off voltage of 0.8 V vs.Li＋/Li.potentially improving the safety of the batteries.In addition,good rate performance and long cycle life of these carboxylates make them promising candidates as anode materials for lithium-ion batteries.     

氨羧螯合树脂的合成及性能研究

合成了带有甲基、丙基、异丙基及苄基的四种仲胺树脂,并进一步与氯乙酸或丙烯酸反应得到氨羧乙酸及氨羧丙酸树脂,考察了所得十二种树脂对铜等十一种离子的选择吸附性能。     

新显色剂二溴甲基偶氮羧胂光度法测定铅

研究了用新显色剂二溴甲基偶氮羧肿光度法测定铅。在0.4mol.L~(-1)硫酸介质中,铅与试剂形成1:2蓝色配合物,最大吸收在620nm处,摩尔吸光系数为4.2×10~4,铅的含量在0～50μg/25ml范围内符合比耳定律。方法灵敏,选择性高,应用于铜合金中的铅测定,获得满意结果。     

电导滴定法对苯乙烯/丙烯酸无皂乳液共聚微球表面性质的研究

本文主要叙述用电导滴定法对羧化微球表面的羧基含量进行了测定,以便了解其表面特性与IgG吸附的关系,进而获得满意的微球产品。     

Triphenylphosphine Stabilized Silver Carboxylates

A series of novel triphenylphosphine stabilized silver carboxylates, potential precursors for CVD growth of ultrafast interconnection link in microelectronic devices, have been prepared and characterized.     

油田采出液中微量羧酸盐表面活性剂分析方法研究

油田采出液中化学剂浓度的检测是三元复合驱动态评价的重要指标之一。本文针对现场提出的对微量羧酸盐表面活性剂的检测问题,建立了一种用紫外分光光度法测定微量羧酸盐表面活性剂分析的新方法。该法简便、准确快速,线性范围宽,回收率在94.4-103.1%之间,相对标准偏差为1.38%。并根据油田生产的实际情况,探论了碱、聚合物、原油等干扰因素对测定的影响,结果满意。