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Metal hydroxide hydrothermal C-composite OER material prepared by using hydrothermal method

A technology of hydroxide and hydrothermal method, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of poor stability, achieve high stability, increase specific surface area, and good catalytic performance

Pending Publication Date: 2021-11-30
江西八六三实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a metal hydroxide hydrothermal C-composite OER material prepared by a hydrothermal method, which solves the problem of poor stability of existing metal catalysts

Method used

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  • Metal hydroxide hydrothermal C-composite OER material prepared by using hydrothermal method

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Embodiment 1

[0027] Such as Figure 1-2 As shown, the embodiment of the present invention provides a metal hydroxide hydrothermal C-composite OER material prepared by a hydrothermal method, and a method for preparing a metal hydroxide hydrothermal C-composite OER material, comprising the following steps:

[0028] S1. Configuration solution

[0029] Weigh 44mL, 40mL, 32mL and 24mL of 10mmol glucose and 11mL, 10mL, 8mL and 6mL of 2.5mmol anhydrous phloroglucinol respectively into four different beakers, then slowly add metal salts into the beakers, and then Add 5mL, 10mL, 20mL, and 30mL of acetic acid into the four beakers respectively, stir the beakers at a speed of 100r / min for 30min, and prepare a 60mL aqueous solution;

[0030] S2. Hydrothermal reaction

[0031] Take out the prepared aqueous solution and put them into the hydrothermal kettle respectively, and stir the hydrothermal kettle at a speed of 400r / min for 35min, and at the same time, carry out hydroheating in the hydrothermal ...

Embodiment 2

[0041] Such as Figure 1-2 As shown, the embodiment of the present invention provides a metal hydroxide hydrothermal C-composite OER material prepared by a hydrothermal method, and a method for preparing a metal hydroxide hydrothermal C-composite OER material, comprising the following steps:

[0042] S1. Configuration solution

[0043] Weigh 32mL 10mmol of glucose and 8mL of 2.5mmol anhydrous phloroglucinol into four different beakers, then take three of them and add FeSO4·7H2O, CoSO4·7H2O and MnSO4·H2O respectively, the molar amount All were controlled at 0.25mmol, then 20mL of acetic acid was added to the four beakers, and the beakers were stirred at a speed of 50-100r / min for 25-30min to prepare 60ml of aqueous solution;

[0044] S2. Hydrothermal reaction

[0045] Take out the prepared aqueous solution and put it into the hydrothermal kettle, and stir the hydrothermal kettle at a speed of 200r / min for 30min, and at the same time, heat the hydrothermal kettle at a temperat...

Embodiment 3

[0055] Such as Figure 1-2 As shown, the embodiment of the present invention provides a metal hydroxide hydrothermal C-composite OER material prepared by a hydrothermal method, and a method for preparing a metal hydroxide hydrothermal C-composite OER material, comprising the following steps:

[0056] S1. Configuration solution

[0057] The glucose of 32ml 10mmol and the anhydrous phloroglucinol of 8ml 2.5mmol were weighed respectively and put into four different beakers, and FeSO4·7H2O of 0.25mmol, 0.5mmol, 0.75mmol and 1mmol were added respectively in the four beakers, Then add 20mL of acetic acid, stir in the beaker at a speed of 100r / min for 30min, and prepare a 60mL aqueous solution;

[0058] S2. Hydrothermal reaction

[0059] Take out the prepared aqueous solution and put it into the hydrothermal kettle, and stir the hydrothermal kettle at a speed of 200r / min for 30min, and at the same time, heat the hydrothermal kettle at a temperature of 200°C, and the hydrothermal ti...

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Abstract

The invention provides a metal hydroxide hydrothermal C-composite OER material prepared by using a hydrothermal method, and relates to the technical field of electrochemical catalysts. A preparation method of the metal hydroxide hydrothermal C-composite OER material comprises the following steps: S1, solution preparation; S2, a hydrothermal reaction; S3, product treatment; and S4, final preparation. According to the invention, metal hydroxide is selected to be combined with hydrothermal carbon; metal transition hydroxide is an excellent OER electrochemical active catalyst, and due to the fact that metal transition hydroxide has low cost, high efficiency, good catalytic performance and high stability, the surface adsorption effect of the hydrothermal carbon can be brought into full play, a hydrothermal carbon crystal form prepared from glucose treated by the hydrothermal method is not damaged, a carbon material is partially graphitized, final OER performance is also good, and stability can be kept for 8 hours or more; and moreover, the yield of the finally prepared powder material is also very high, subsequent large-scale commercial production is better facilitated, and the method is worthy of vigorous popularization.

Description

technical field [0001] The invention relates to the technical field of electrochemical catalysts, in particular to a metal hydroxide hydrothermal C-composite OER material prepared by a hydrothermal method. Background technique [0002] With the development of the economy, the consumption of coal and oil continues to increase, fossil fuel resources are gradually exhausted, and environmental pollution is becoming more and more serious. Therefore, human society urgently needs to develop an efficient, clean and renewable new energy, which is prepared by electrolysis of water Hydrogen is one of the important directions for the future development of renewable energy. Hydrogen production by electrolysis of water is almost the most common method of hydrogen production. There are two half-reactions in hydrogen production by electrolysis of water. Under different acid-base conditions, the anode process There are reactions involving four electrons, kinetic inertness, and high overpoten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/091C25B11/052C25B1/04
CPCC25B11/091C25B11/052C25B1/04Y02E60/36
Inventor 陈彦霖凌宇鑫
Owner 江西八六三实业有限公司
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