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Preparation method and application of a derivatized functional porous wood for electrolyzing water to produce hydrogen

A technology of aquatic hydrogen production and functional pores, applied in electrolysis components, electrolysis process, electrodes, etc., can solve the problems of poor bonding between transition metal phosphide and wood substrate, complex process of transition metal phosphide, unstable interface, etc., and achieve good stability properties, improve efficiency, and reduce overpotential effects

Active Publication Date: 2021-04-09
QINGDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of complex process of transition metal phosphide prepared by the existing method, poor combination of transition metal phosphide and wood substrate, and unstable interface in the process of hydrogen production by electrolysis of water, and provide a NiP / wood heterogeneous Preparation method and application of porous composite material

Method used

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  • Preparation method and application of a derivatized functional porous wood for electrolyzing water to produce hydrogen
  • Preparation method and application of a derivatized functional porous wood for electrolyzing water to produce hydrogen
  • Preparation method and application of a derivatized functional porous wood for electrolyzing water to produce hydrogen

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specific Embodiment approach 1

[0034] Specific implementation mode 1: This implementation mode is a preparation method of a derivatized functional porous wood used for electrolyzing water to produce hydrogen, which is completed according to the following steps:

[0035] 1. First remove the rough fibers on the surface of the natural porous wood, then ultrasonically clean it in deionized water, absolute ethanol and acetone in turn, and finally vacuum dry to obtain the natural porous wood with the rough fibers removed from the surface;

[0036] 2. Immerse the natural porous wood with surface rough fibers removed into PdCl with a concentration of 0.1g / L~0.3g / L 2 In hydrochloric acid solution for 10min to 20min, take it out and dry it with hot air to get loaded Pd 2+ porous wood;

[0037] 3. Immerse the porous wood loaded with Pd ions into NaBH with a concentration of 4g / L~6g / L 4 Sodium hydroxide solution for 5min to 15min, take it out and dry it with hot air to get loaded Pd 0 porous wood;

[0038] Fourth, ...

specific Embodiment approach 2

[0043] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the natural porous wood described in step 1 is poplar, Ash or larch, and the size is 1.5cm×1.0cm×0.1cm. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0044] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: in step 1, first use 80 mesh sandpaper to polish the natural porous wood for 10min~20min, then use 240 mesh sandpaper to polish the natural porous wood for 10min~ 20min, to obtain the natural porous wood with surface coarse fibers removed. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method and application of a derivative functional porous wood used for electrolyzing water to produce hydrogen, and relates to a preparation method and application of a wood functional porous composite material. The purpose of the present invention is to solve the problems of complex process of the transition metal phosphide prepared by the existing method, poor combination of the transition metal phosphide and the wood substrate, and unstable interface in the hydrogen production process of electrolyzed water. Methods: 1. Remove coarse fibers from the surface of natural porous wood; 2. Load Pd 2+ ; 3. Load Pd 0 ; 4. Ni-P alloy loading; 5. Vacuum drying. The derivatized functional porous wood for electrolyzing water to produce hydrogen prepared by the invention is used for electrolyzing water to produce hydrogen. The derivatized functional pore wood for hydrogen production by electrolysis of water prepared by the present invention has good stability under alkaline conditions, and the ‑2 Under the current density for up to 40 hours, the current hardly decays. The derivatized functional porous wood for electrolyzing water to produce hydrogen prepared by the invention is suitable for electrolyzing water to produce hydrogen.

Description

technical field [0001] The invention relates to a preparation method and application of a wood functional hole composite material. Background technique [0002] Hydrogen energy is an ideal energy carrier, and the development of large-scale, cheap, clean and efficient hydrogen production technology is the key to the effective utilization of hydrogen energy. Hydrogen production by electrolysis of water is an important energy technology for realizing sustainable hydrogen. It can be driven by electric energy converted from a variety of renewable energy sources to achieve clean, rapid, and concentrated production of high-purity hydrogen, thereby realizing the transformation of renewable energy sources that are unevenly distributed in time and space into stable chemical energy. The most important bottleneck restricting the large-scale application of hydrogen production from electrolyzed water is how to greatly reduce its power consumption, thereby greatly reducing the cost of hyd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/50C25B1/04C25B11/031C25B11/069
CPCC23C18/50C25B1/04C25B11/031C25B11/051C25B11/055C25B11/075Y02E60/36
Inventor 惠彬夏延致杨东江耿存珍全凤玉
Owner QINGDAO UNIV
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