Preparation method of high-current-density water electrolysis hydrogen production catalyst
A catalyst, high current technology, applied in the electrolysis process, electrolysis components, electrodes and other directions, can solve the problems of low electrolysis efficiency, high energy consumption, low catalyst activity, etc., to improve the activity and efficiency of hydrogen production, easy to control the dispersion, The effect of reducing the energy consumption of hydrogen production
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0037] Embodiment 1
[0038] The present embodiment provides a preparation method containing Co and carbon nanotube catalyst, the main steps are:
[0039] (1) 5 g of melamine, 0.5 g of carbon nanotubes and 4.9 g of cobalt nitrate were ball-milled (600 rpm / 6 h, and the mass ratio of zirconia ceramic balls to the mixture was 5:1.
[0040] (2) The ball-milled mixture was placed in a crucible and pyrolyzed with nitrogen at 550 degrees for 4 hours, and the obtained sample 1 was used for the evaluation of the reaction performance of electrolysis of water for hydrogen production.
[0041] (3) To achieve 1000mA / cm2, an overvoltage of 0.48V needs to be applied; under the overvoltage of 0.3V, the normalized hydrogen production rate reaches 0.5mL / min·g.
Example Embodiment
[0042] Example 2
[0043] The present embodiment provides the preparation of a catalyst containing Ni and carbon nanotubes:
[0044] (1) 5 g of melamine, 0.5 g of carbon nanotubes and 4.9 g of nickel nitrate are ball-milled (600 rpm / 6 h, the mass ratio of zirconia ceramic balls to the mixture is 5:1).
[0045] (2) The ball-milled mixture was placed in a crucible and pyrolyzed with nitrogen at 550 degrees for 4 hours, and the obtained sample 2 was used for the evaluation of the reaction performance of electrolysis of water for hydrogen production.
[0046] (3) Realize 1000mA / cm 2 An overvoltage of 0.65 V needs to be applied; at 0.3 V overvoltage, the normalized hydrogen production rate reaches 0.2 mL / min g.
Example Embodiment
[0047] Example 3
[0048] The present embodiment provides a preparation method containing Co, Ni and carbon nanotube catalyst, the main steps are:
[0049](1) 5 g of melamine, 0.5 g of carbon nanotubes, 2.45 g of cobalt nitrate and 2.45 g of nickel nitrate were ball-milled (600 rpm / 6 h, and the mass ratio of zirconia ceramic balls to the mixture was 5:1.
[0050] (2) The ball-milled mixture was placed in a crucible and pyrolyzed with nitrogen at 550 degrees for 4 hours, and the obtained sample 3 was used for the evaluation of the reaction performance of electrolysis of water for hydrogen production. The electron microscope image of the sample (ME-Co / Ni(1:1)@CNT in Example 3, see image 3 .
[0051] (3) Realize 1000mA / cm 2 An overvoltage of 0.39 V needs to be applied; at 0.3 V overvoltage, the normalized hydrogen production rate reaches 6.5 mL / min g.
PUM
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.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap