oxidation-reduction methodGraphite oxide was prepared by Hummers method, then it was obtained by ultrasound. Finally, graphene was prepared by using hydrazine hydrate as reducing agent. We can get the influences of oxidation time on the graphene structure by different reacting times. Ultrasonication ...
Graphene Oxide Membranes for Liquid Separationdoi:10.1002/9781119468455.ch86Graphene oxideliquid separationcrosslinkingpartial reductionnanosized spacersZhiqian JiaCollege of Chemistry Beijing Normal University Beijing PR ChinaJohn Wiley & Sons, Ltd
the nanofluids prepared by graphene oxide sheets and base fluids of the water, liquid paraffin, and propyl glycol. At a concentration of 5%, the enhancements of thermal conductivity were 30.2%, 62.3% and 76.8% as the base liquids were the water, propyl glycol and liquid paraffin, respectively...
Introduction There is a rapidly emerging need for thermal management at cryogenic temperatures. It is driven by several trends and developments. There is a strong motivation to run conventional semiconductor electronics at low temperatures to implement “cold computing,” which allows one to increase co...
large scope. The controllable optical and electronic properties enable graphene oxide to be used in many fields. The major concern about graphene oxide is mainly focused on itschemical structure[355–357], electronic properties[358,359], reduction reaction[360,361]and chemical functionalization[362,...
Graphene oxide is highly desired for printing electronics, catalysis, energy storage, separation membranes, biomedicine, and composites. However, the present synthesis methods depend on the reactions of graphite with mixed strong oxidants, which suffer from explosion risk, serious environmental pollution, ...
Graphene oxide based in‐tube solid‐phase microextraction combined with liquid chromatography tandem mass spectrometry for the determination of triazine herbicides in water 来自 Semantic Scholar 喜欢 0 阅读量: 37 摘要: A novel in-tube solid-phase microextraction method based on a graphene oxide coated...
Yanjun Liu, and Peiyi Wu*.Chirally Reversed Graphene Oxide Liquid Crystals.Adv. Sci.2020, 7, 2001269. Abstract Colloidal liquid crystals (LCs) formed by nanoparticles hold great promise for creating new structures and topologies. However, achieving highly ordered hierarchical architectures and stable ...
Fig. 5: Synthesis of graphene oxide. Full size image Another method using liquid-phase exfoliation of graphite in surfactant solutions or water produced 40% of 2D graphene sheets with thickness <5 layers and ~3% single layers of graphene48. Chemical methods for the synthesis of graphene are mor...
Although there remain many obstacles for graphene and its derivatives (e.g., graphene oxide, functionalized graphene) for real membrane applications, graphene will continue to make rapid progress in membrane applications, particularly, such as gas and liquid separations. This article will cover ...