Low-cost ZnNCN material preparation method

A low-cost, TRD-ZIF-8 technology, applied in the direction of hybrid capacitor electrodes, etc., can solve the problems of large particle size, small specific surface area and high production cost of nanoparticles, and achieve small particle size, large specific surface area and electrochemical performance. stable effect

Pending Publication Date: 2020-08-04
JIAXING UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the ubiquitous production cost higher in the existing nano-scale ZnNCN preparation technology, the productive rate is lower, the prepared nano-particle size is larger, the s...

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  • Low-cost ZnNCN material preparation method
  • Low-cost ZnNCN material preparation method
  • Low-cost ZnNCN material preparation method

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them.

[0023] refer to Figure 1-5 , a low-cost ZnNCN material preparation method, comprising the following steps:

[0024] S1: Synthesis of truncated rhombohedral dodecahedral zeolite imidazolate framework-8 (TRD-ZIF-8) nanoparticles: Zn(CH 3 COO) 2 2H 2 O (600 mg) in 10 ml of aqueous solution was added to 10 ml of aqueous solution of 2-methylimidazole (0.54 mM) and CTAB (2.58 mM), stirred slowly for a few seconds, and after 10 minutes, the original transparent solution turned white Solution, after standing at room temperature for 3h, centrifuged at 9000r.p.m, enriched in a 50mL centrifuge tube, then the resulting TRD-ZIF-8 nanoparticles were washed 3 times...

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Abstract

The invention belongs to the field of preparation of ZnNCN materials, in particular to a low-cost ZnNCN material preparation method. The method comprises the following step of synthesizing truncated rhombic dodecahedral zeolite imidazole ester skeleton-8 (TRD-ZIF-8) nanoparticles, concretely, adding 10ml of an aqueous solution in which Zn (CH3COO) 2.2 H2O (600mg) is dissolved into 10ml of an aqueous solution in which 2-methylimidazole (0.54 mM) and CTAB (2.58 mM) are dissolved, slowly stirring the solution for several seconds, after 10 minutes, changing the original transparent solution into awhite solution, standing the solution at room temperature for 3 hours, carrying out centrifuging at 9000r.p.m, enriching the solution in a 50mL centrifuge tube, and then washing the obtained TRD-ZIF-8 nanoparticles with deionized water for three times. The ZnNCN material disclosed by the invention is relatively high in yield, and the nanoparticles are relatively small in particle size, relativelylarge in specific surface area and stable in electrochemical performance.

Description

technical field [0001] The invention relates to the technical field of ZnNCN material preparation, in particular to a low-cost ZnNCN material preparation method. Background technique [0002] As a new generation of energy storage devices, supercapacitors due to such as high power density (>10,000W kg -1 ), long cycle life (>10 5 ), low maintenance cost and environmental friendliness have attracted widespread attention. Among the numerous candidate classes of supercapacitors, pseudocapacitors have shown great potential due to their high energy density and fast reversible surface redox reactions. Currently, transition metal oxides (FeO x , NiO x , CoO x etc.) as a common pseudocapacitive electrode material, which is mainly due to its low cost, environmental friendliness and high abundance. However, transition metal oxide materials usually suffer from poor electrical conductivity, fast capacity fading, and poor cycling stability during energy storage, which severely...

Claims

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Application Information

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IPC IPC(8): H01G11/34H01G11/24H01G11/28H01G11/30
CPCH01G11/30H01G11/28H01G11/24H01G11/34
Inventor 王鹏
Owner JIAXING UNIV
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