THE PREPARATION AND CHARACTERIZATION OF GRAPHENE BY LIQUID OXIDATION-REDUCTION METHODPreparationCharacterizationGraphite OxideGrapheneGraphene was prepared by using hydrazine hydrate to reduce the exfoliated graphite oxide nanosheets in the aqueous colloidal suspension. The prepared graphene were characterized by...
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 ...
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
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 computational a...
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...
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,...
Highly laminar graphene oxide flakes (10 to 20 μm in diameter) are fabricated. Reducing flake thickness to 10 nm enables water and organic solvent permeation, enabling the flakes to act as a highly effective organic solvent membrane. ...
Permeation of graphene oxide (GO) membranes is expected to improve significantly when epoxy groups are removed while retaining hydroxyl groups in the GO flakes. However, it is still difficult for conventional reduction methods to achieve such selective reduction of oxygen-containing groups. In this pa...
Graphene fibre is a one-dimensional macroscopic ordered assembly formed by graphene oxide (GO) liquid crystals under unidirectional shear-flow, following by chemical and thermal reduction4,11,14,16. 2D GO sheets flowing in a tubular channel become curved and distorted as a result of the mismatchin...
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, ...