Sensor for hydrazine detection, nitrogen-doped porous carbon loaded copper-cobalt nano composite material and preparation method and application thereof
A technology of nitrogen-doped porous carbon and nanocomposite materials, applied in the direction of nanotechnology for sensing, nanotechnology, analytical materials, etc., can solve the complex synthesis process, narrow linear response range, electrochemical sensing sensitivity and selection It can solve the problem of low stability and achieve the effect of simple preparation process, good stability and repeatability, and excellent electrocatalysis
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0036] to combine figure 1 , the preparation method of nitrogen-doped porous carbon-loaded copper-cobalt nanocomposite material of the present invention, specifically comprises the following steps:
[0037] (1) Preparation of ZIF-8:
[0038] Weigh Zn(NO 3 ) 2 ·6H 2 O was dissolved in methanol, and the methanol solution containing 2-methylimidazole (30-40mM) was quickly added. After stirring and reacting, the solution gradually changed from colorless to white turbidity. After standing for a certain period of time, the supernatant was discarded, and the product Washing with methanol and drying in vacuo gave ZIF-8.
[0039] (2) Preparation of ZIF-8-derived nitrogen-doped porous carbon nanopolyhedra (NPC):
[0040] Weigh a certain amount of ZIF-8, grind it fully in a mortar, place it in a tube furnace, raise the temperature to 750-850°C at a rate of 4-6°C / min under a nitrogen atmosphere, and continue to react for 1-3 hours. The remaining black powder is dispersed in hydrochl...
Embodiment 1
[0048] The preparation method of the nitrogen-doped porous carbon-supported copper-cobalt nanocomposite material of this embodiment specifically includes the following steps:
[0049] (1) Weigh 1.488g Zn(NO 3 ) 2 ·6H 2 Dissolve O (5mM) in 80mL of methanol, quickly add 2.874g of 2-methylimidazole (35mM) in 40mL of methanol solution, stir and react for 20min, the solution gradually turns from colorless to white turbid, let stand for 24h, discard The supernatant and the product were washed three times with methanol, and dried in vacuum at 50° C. for 12 hours to obtain ZIF-8.
[0050] (2) Weigh a certain amount of ZIF-8 and fully grind it in a mortar for 30 minutes, then place it in a tube furnace and raise the temperature to 800°C at a rate of 5°C / min under a nitrogen atmosphere, and continue to react for 2 hours. The black powder was dispersed in 0.5M hydrochloric acid solution and stirred for 48 hours to remove residual zinc oxide or zinc. Finally, the product was washed thr...
Embodiment 2
[0067] The preparation method of the nitrogen-doped porous carbon-supported copper-cobalt nanocomposite material of this embodiment specifically includes the following steps:
[0068] (1) Weigh 1.488g Zn(NO 3 ) 2 ·6H 2 Dissolve O (5mM) in 70mL methanol, quickly add 2.463g 2-methylimidazole (30mM) in 35mL methanol solution, stir and react for 15min, the solution gradually turns from colorless to white turbid, let stand for 22h, discard The supernatant and the product were washed three times with methanol, and dried in vacuum at 40° C. for 15 hours to obtain ZIF-8.
[0069] (2) Weigh a certain amount of ZIF-8 and fully grind it in a mortar for 30 minutes, place it in a tube furnace and raise the temperature to 750°C at a rate of 5°C / min under a nitrogen atmosphere, and continue to react for 2.5 hours. The black powder was dispersed in 0.5M hydrochloric acid solution and stirred for 45 hours to remove residual zinc oxide or zinc. Finally, the product was washed three times wit...
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
particle diameter | aaaaa | aaaaa |
concentration | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com