3results about How to "Increase interplanar spacing" patented technology

This application provides an amino- and tertiary-amine-modified triazine hard carbon porous material, its preparation method, and an anode. Using tris(4-aminophenyl)amine and 4-amino-3,5-dibromobenzonitrile as raw materials, acetonitrile as solvent, and CuI as catalyst, NH2-SL is synthesized via a Ullmann reaction. The mixture is then reacted in a tube furnace at 450℃ for 40 h to synthesize CTF-NH2 containing an imine structure. Subsequently, high-temperature calcination is performed to synthesize NH2-1000. The triazine porous framework obtained in this application exhibits excellent physicochemical stability, high nitrogen content, and high porosity. Compared to the material before calcination at 1000℃, the interplanar spacing of the hard carbon porous material increases by 0.0034 nm, which is more conducive to sodium ion insertion and extraction. Therefore, the prepared NH2-1000, as a sodium-ion battery anode, demonstrates a high reversible capacity of 209.1 mAh / g in a 2A / g rate performance test, making it widely applicable as a secondary battery anode material.

This application provides an amino- and tertiary-amine-modified triazine hard carbon porous material, its preparation method, and an anode. Using tris(4-aminophenyl)amine and 4-amino-3,5-dibromobenzonitrile as raw materials, acetonitrile as solvent, and CuI as catalyst, NH2-SL is synthesized via a Ullmann reaction. The mixture is then reacted in a tube furnace at 450℃ for 40 h to synthesize CTF-NH2 containing an imine structure. Subsequently, high-temperature calcination is performed to synthesize NH2-1000. The triazine porous framework obtained in this application exhibits excellent physicochemical stability, high nitrogen content, and high porosity. Compared to the material before calcination at 1000℃, the interplanar spacing of the hard carbon porous material increases by 0.0034 nm, which is more conducive to sodium ion insertion and extraction. Therefore, the prepared NH2-1000, as a sodium-ion battery anode, demonstrates a high reversible capacity of 209.1 mAh / g in a 2A / g rate performance test, making it widely applicable as a secondary battery anode material.

The invention discloses an A-RuTiO2-xNTs composite catalyst for hydrogen production through water electrolysis of a proton exchange membrane as well as a preparation method and application of the A-RuTiO2-xNTs composite catalyst, belongs to the technical field of catalysts for hydrogen production through water electrolysis, and aims at solving the technical problem that the activity and stability of Ru-based catalysts for hydrogen production through water electrolysis without heterogeneous metal doping in the prior art need to be further improved. The composite catalyst comprises a titanium felt substrate, an anoxic TiO2 nanotube array grown on the surface of the titanium felt substrate, and Ru nanoparticles loaded on the TiO2 nanotube array. According to the invention, the anoxic TiO2 nanotube array is grown on the surface of the titanium felt, and the Ru nanoparticles are loaded on the TiO2 nanotube array, so that the A-RuTiO2-xNTs composite catalyst shows the lowest overpotential, the minimum ohmic resistance and the optimal Tafel slope under the acidic condition, and the catalytic activity and stability of hydrogen production by electro-catalytic water decomposition are greatly improved.