前一篇博文讲述了二次电池资源化的问题，我们的研究正在向该文指出的方向迈进。正好 Elsevier提供的论文分享服务可以使任何读者阅读我们发表的一篇文章。以下是链接： http://elsarticle.com/18ARrU4 如有兴趣，请读者自行前往，下载阅读。如有问题，请留言。 文章摘要：PbO 2 和PbSO 2 的混合物在用碳酸盐脱硫后，在密闭容器中140 o C甲醇中处理可以得到PbO·PbCO 3 和 PbCO 3 。后者经450 o C灼烧可以得到高活性的PbO。其电化学性能超过现有工业上用金属铅制备的含铅氧化铅，可用于生产铅酸电池。 论文的英文摘要如下： We have developed a novel route to make new batteries from spent ones, in which we obtain and regenerate the active materials of positive electrode and negative electrode respectively. For the spent lead acid batteries, the positive electrode active materials contain both PbSO 4 and PbO 2 . To make full use of them, we have to investigate the treatment of the mixtures rather than only PbO 2 , which we have reported previously. Here we report our investigation on three mixtures of PbSO 4 and PbO 2 in different mole ratios, as well as the electrode materials directly from the spent batteries. The mixtures are firstly desulphated, and then solvothermally processed in methanol at 140 °C for 24 h. The as-obtained solids contain both PbO·PbCO 3 and PbCO 3 , which have been calcined to form α-PbO. The α-PbO powders are similar irregular particles and highly electrochemically active, which discharge around 170 mAh g −1 at 5 mA g −1 , 80 mAh g −1 at 200 mA g −1 and 60 mAh g −1 at 400 mA g −1 with excellent cyclic stability in 50 cycles.
在东非裂谷有一座坦桑尼亚Oldoinyo Lengai火山，可以看到碳酸岩的熔岩流。它是世界上唯一的碳酸岩喷发。以下是2张照片，请大家欣赏！ Carbonatite lava that erupted a week before this photo was taken flows from Oldoinyo Lengai volcano. Credit: Tobias Fischer, UNM Volcanic gases are sampled in the crater of Oldoinyo Lengai. Credit: Tobias Fischer, UNM http://geology.com/press-release/carbonatite-lava-at-oldoinyo-lengai/
标签: 碳酸盐
