39results about How to "Good potential application prospects" patented technology

The invention relates to a lignin-based two-dimensional carbon nano-material as well as a preparing method and an application thereof and belongs to the technical field of carbon materials. The two-dimensional carbon nano-material is prepared by the following steps of: after mixing lignin and a nitrogen-containing compound, carrying out pyrolysis and carbonization at an atmosphere, and then, washing and drying a pyrolysed and carbonized product. The two-dimensional carbon nano-material is of a curly flaky-layer structure, the lateral dimension of the flaky layer is 0.5-5mum, the thickness of the flaky layer is 10-50nm, and the specific surface area is larger than 400m<2> / g. By utilizing the regulating function of the nitrogen-containing compound on a carbonization process, a two-dimensional carbon nanometer structure is directly pyrolysed and synthesized without using additives, such as a catalyst, a hard template and an activating agent, or complicated instruments and equipment, the preparing process is simple, and industrial production and application can be realized. Besides, the prepared lignin-based two-dimensional carbon nano-material is stable in structure, and when is applied to the aspect of electromechanical energy storage, has a remarkable double-electric-layer capacitance property. A prepared supercapacitor has the advantages of being high in energy density, great in cycling property and the like.

The invention discloses titanium dioxide nanoribbons exposing a {010} crystal face and a preparation method thereof; an exposed crystal face, except two end faces, of the titanium dioxide nanoribbons is the {010} crystal face (the exposure rate of the {010} crystal face is close to 100%). The preparation method comprises titanate nanoribbons mainly exposing a {010} crystal face are used as raw material and are roasted at high temperature to prepare the product. The preparation processes of the titanate nanoribbons mainly exposing the {010} crystal face mainly includes four processes: hydrothermal reaction, alcohol assisting self-assembly reaction, water washing and drying. With adopting of the preparation method, not only is the exposure rate of the high-activity {010} crystal face improved, but also the specific surface area of titanium dioxide is increased. The preparation process has no need of use of fluorine-containing reagents and is an environmental-friendly green preparation method. With adopting of the preparation method, the preparation temperature of the titanium dioxide nanoribbons is reduced, and the production energy consumption and the production cost are effectively reduced. At the same time, because the titanium dioxide nanoribbons prepared by the method and exposing nearly 100% of the {010} crystal face have excellent photocatalytic activity, the titanium dioxide nanoribbons can be widely applied in the fields such as photolysis of water, environmental restoration, sensors and nano devices building.

The invention discloses a π-conjugated polycyclic aminoisoquinoline compound, a synthesis method and application thereof, and belongs to the fields of organic chemistry and materials science. The invention provides an economical, efficient and green method for synthesizing the novel π-conjugated polycyclic aminoisoquinoline compounds with good atom and reaction steps, and the synthesized novel π-conjugated polycyclic aminoisoquinoline The structure of quinoline compounds has strong fluorescence quantum yield and long photoluminescence lifetime, and can be used in the fields of small molecule fluorescent markers, new optoelectronic materials, etc., and has good application prospects.

The invention discloses an amphiphilic high-temperature-resistant silicon-based fiber plugging agent and a preparation method thereof, belonging to the technical field of oil field engineering plugging; the amphiphilic high-temperature resistant silicon-based fiber plugging agent described in the invention is based Based on ethyl acetate, mixed with high-temperature-resistant inorganic fillers and molding aids, prepared into an aqueous solution with a suitable viscosity, and then sprayed it into a solidification bath of sodium hydroxide aqueous solution through the spinneret hole, solidified and formed, and obtained high-temperature-resistant silicon base fiber; then use cyclodextrin with amphiphilic structure to carry out surface grafting treatment on the prepared high-temperature resistant silicon-based fiber to obtain amphiphilic high-temperature resistant silicon-based fiber; the obtained product can be used in oil-based drilling fluid or It can be used in water-based drilling fluid with excellent plugging effect, and can be used in high-temperature and harsh environments such as plugging in deep layers of drilling.

The invention relates to a three-dimensional 4f-5d coordination polymer and a preparation method and application thereof. The three-dimensional 4f-5d coordination polymer Ln(H2O)4(pyrazine)0.5W(CN)8 is prepared by using a mixing method which takes a neutral two-dimensional layered coordination polymer as a building block and taking pyrazine as a columnar ligand and puts the neutral two-dimensional layered coordination polymer and the pyrazine into acetonitrile, wherein Ln is any one of La, Ce, Pr, Nd, Sm, Eu, Gd and Tb. The coordination polymer has a ferromagnetic coupling mutual effect and has a significant application prospect in the field of magnetics.