碳纳米管金修饰电极?金修饰 碳纳米管 采用的这篇文献做的One-step synthesis of multiwalled carbon nanotubes-gold nanocomposites forfabricating amperometric acetylcholinesterase biosensor,具体步骤是 the 2.5 mg puri?ed carbon nanotubes were suspended in 500 L of 1% HAuCl4·4H2O solution by sonication for 10 min to make nanotubes dispersed equably. The suspended solution was then diluted to 25 mL with puri?ed water containing 0.03 M sodium citrate. 500 L of freshly prepared 0.1 M NaBH4??was added drop- wise, and kept stirring for 10 min until the color of the solution did not change。然后过滤烘干。 ? ?? ?? ?烘干后的固体溶在DMF中配成1mg/ml溶液,滴涂3微升到玻碳电极上,在0.1M 硫酸 中测的图是这样的,0.8v左右的峰是金的还原峰,,但是比文献中的小很多,文献中一般都达到毫安,我的只是微安,是不是说明金负载量不够或者说负载的不均匀导致的,还有我的操作步骤有没有问题啊 ? ?? ???谢谢各位了! 图片1.png查看更多3个回答 . 6人已关注