The present invention relates to an ultrasonic-assisted preparation of graphene oxide Hummers method. 首先在Hummers法的低温,中温反应阶段添加超声振荡,以此来提高氧化石墨的插层效率和氧化程度,然后在高温反应开始时,把含有浓硫酸的混合液缓慢滴入低温去离子水中再升温,从而有限避免硫酸分子等插入物因为局部温度过高...
Grapheneoxide(GO) is a 2-dimensional material composed of planar and large sp2hybridized carbon domain, and is produced by vigorousoxidationof graphite by Hummers method[181–184]. GO which possesses enriched oxygen-containing groups and a high specificsurface area(2630 m2/g) is often used as...
The present invention relates to the technical field of industrial water and waste water, particularly relates to an improved method of Preparation Method Hummers graphene oxide. 改进Hummers法制备氧化石墨烯的方法,将石墨粉放进,三颈烧瓶中,并加入混合液;在冰浴条件下,加入KMnO4,将混合液,搅拌;将反应得到...
In this work, we present the effect of initial graphite particle size and shape on oxidation time in graphene oxide prepared by Hummers' method. This helps control the oxidation producer, which can be useful in large scale production of graphite oxide. 2. Experimental 2.1. Materials Experiments ...
如果是他正在反應劇烈時你把反應的空間封閉(加蓋)可能會導致內部壓力上升而爆炸這是有可能的，無論如何...
Graphene oxide/alginate beads as adsorbents: Influence of the load and the drying method on their physicochemical-mechanical properties and adsorptive perf... Shi, High-yield preparation of graphene oxide from small graphite flakes via an improved Hummers method with a simple purification process. ...
et al. Brodie’s or Hummers’ method: oxidation conditions determine the structure of graphene oxide. Chem. Eur. J. 25, 8955–8959 (2019). Article Google Scholar Chen, Z.-L. et al. Influence of graphite source on chemical oxidative reactivity. Chem. Mater. 25, 2944–2949 (2013). ...
An improved method for the preparation of graphene oxide (GO) is described. Currently, Hummers' method (KMnO(4), NaNO(3), H(2)SO(4)) is the most common method used for preparing graphene oxide. We have found that excluding the NaNO(3), increasing the amount of KMnO(4), and perfor...
It is worth noting that the total amount of water used for cleaning graphite oxide in our method (mass ratio to raw FGP, around 150, Supplementary Note2and Supplementary Fig.6) is significantly lower than those used in the Hummers methods (typically around 1000). Similar to the GO synthesize...
Feicht, P. et al. Brodie’s or Hummers’ method: oxidation conditions determine the structure of graphene oxide.Chem. Eur. J.25, 8955–8959 (2019). ArticleGoogle Scholar Chen, Z.-L. et al. Influence of graphite source on chemical oxidative reactivity.Chem. Mater.25, 2944–2949 (2013)....