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nio-y nanocomposite material and its preparation method and application

A technology of nano-composite materials and raw materials, applied in the field of Y molecular sieves loaded with NiO, can solve the problems of low gas production and small surface area, etc.

Active Publication Date: 2021-09-14
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its relatively small surface area, its gas production in MEC is low

Method used

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  • nio-y nanocomposite material and its preparation method and application
  • nio-y nanocomposite material and its preparation method and application
  • nio-y nanocomposite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Add 35 mL of deionized water and 3.16 g of glucose into a polytetrafluoroethylene container, stir at room temperature for 30 min, put it in a reaction kettle, seal it, place it in a constant temperature box, and heat it to 180 °C for a static crystallization reaction for 12 h. Take out the reaction kettle, quickly cool it to room temperature in a quenching tank, take out the reaction product, wash three times with deionized water and absolute ethanol respectively, filter with suction, dry in a vacuum drying box at 70°C for 12 hours, and grind to obtain carbon microsphere powder .

[0042] Take 30 mL of deionized water, 2.33 g of sodium hydroxide, 1.99 g of sodium metaaluminate, and 2.33 g of white carbon black, add them together into a polytetrafluoroethylene container, and stir at room temperature to form a sol solution. Add 0.5 g of carbon microspheres to the sol solution, adjust the pH to 13.5 with 98 wt% concentrated sulfuric acid, stir vigorously at 800 r / min for 2...

Embodiment 2

[0051] Carbon microspheres were prepared according to the method of Example 1.

[0052] Take 32 mL of deionized water, 1.185 g of sodium hydroxide, 3.41 g of sodium metaaluminate, and 1.78 g of white carbon black, add them together into a polytetrafluoroethylene container, and stir at room temperature to form a sol solution. Add 0.8 g of carbon microspheres to the sol solution, adjust the pH to 13.5 with 98 wt% concentrated sulfuric acid, stir vigorously at 1000 r / min for 2 h, and let it stand for 1 d in an airtight condition at room temperature. Then put it into a stainless steel reaction kettle, and heat it in a constant temperature oven to 90°C for constant temperature crystallization reaction for 12 hours. The reaction kettle was taken out, quenched, and the reaction product was taken out. After washing, suction filtration, drying, and calcination in a muffle furnace at 500°C for 5 hours, the nano-Y molecular sieve was prepared.

[0053] Weigh 0.12g Ni (NO 3 ) 2 ·6H 2 ...

Embodiment 3

[0055] Carbon microsphere powder was prepared according to the method of Example 1.

[0056] Take 34 mL of deionized water, 1.30 g of sodium hydroxide, 3.54 g of sodium metaaluminate, and 1.62 g of white carbon black, add them together into a polytetrafluoroethylene container, and stir at room temperature to form a sol solution. 1.25 g of carbon microspheres were added to the sol solution, the pH value was adjusted to 13.5 with 98wt% concentrated sulfuric acid, vigorously stirred at 1200 r / min for 3 h, and aged for 6 d at room temperature. Then put it into a stainless steel reaction kettle and heat it in a constant temperature oven to 90°C for constant temperature crystallization reaction for 16h. The reaction kettle was taken out, quenched, and the reaction product was taken out. After washing, suction filtration, drying, and roasting in a muffle furnace at 550 °C for 5 hours, the nano-Y molecular sieve was prepared.

[0057] Weigh 0.06g Ni (NO 3 ) 2 ·6H 2 O, 5 mL of deio...

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Abstract

The invention discloses a NiO-Y nanocomposite material. Carbon microspheres are added to a sol reaction system for preparing Y molecular sieve, and after airtight aging, a hydrothermal static crystallization reaction is carried out to obtain nano Y molecular sieve, which is impregnated with an aqueous solution of a nickel salt precursor and prepared Prepared after calcination. The NiO-Y nanocomposite material of the invention has a micro-mesoporous multi-level pore structure, and the total specific surface area and pore volume are significantly increased, and can be used for preparing a cathode electrode of a microbial electrolysis cell, and can improve its electrocatalytic hydrogen production performance.

Description

technical field [0001] The invention relates to a NiO-loaded Y molecular sieve, in particular to a nano-composite material loaded with NiO by a Y molecular sieve with a hierarchical pore structure, and a preparation method of the nano-composite material. The nanocomposite material prepared by the invention can be used as a cathode material for catalytic hydrogen production in a microbial electrolysis cell. Background technique [0002] The exhaustion of traditional energy and serious environmental pollution have become two major dilemmas facing the world. Fossil fuels (such as oil, coal, and natural gas) are non-renewable energy sources, and people are increasingly concerned about the impact of these energy sources on the global climate, human health, and ecosystems, leading to continuous development of renewable and clean energy. [0003] Among various new energy sources, hydrogen energy has a high energy density (H 2 120MJ / kg, gasoline 44MJ / kg, CH 4 50MJ / kg, ethanol is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/14B01J35/10B01J37/02B01J37/10B01J37/08B82Y30/00B82Y40/00C25B1/04C25B11/091
CPCB01J29/146B01J35/1023B01J35/1061B01J37/0018B01J37/0201B01J37/10B01J2229/18B82Y30/00B82Y40/00C25B1/04C25B11/091Y02E60/36
Inventor 杨冬花王改薄琼樊兆忠李玉鹏赵煜李晓峰窦涛
Owner TAIYUAN UNIV OF TECH
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