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Slow-release hydrogen material as well as preparation method and application thereof

A hydrogen, slow-release technology, applied in the field of hydrogen production, can solve the problems of too fast reaction rate, skin corrosion, no hydrogen patch, etc., and achieve the effect of increasing the boiling point of the solvent, no need for high temperature, stable and long-lasting hydrogen release

Pending Publication Date: 2022-04-26
苏州清德氢能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the hydrogen-rich facial masks announced by patents CN 111870546 A and CN 111067837 A, but most of these hydrogen-rich facial masks are directly added with hydrogen by physical methods, and a small part is produced by the reaction between active metals such as Mg and Al and organic acids. The former is easy to diffuse hydrogen, while the latter generally has too fast a reaction rate and active metals have adverse effects such as corrosion and allergies on human skin.
while NaBH 4 As a hydrogen source, although hydrogen production by hydrolysis or alcoholysis is relatively stable, NaBH 4 The chemical safety data sheet (MSDS) shows that the chemical strongly irritates mucous membranes, upper respiratory tract, eyes and skin, and corrodes the digestive tract after oral administration. The acute toxicity (LD50) is 18 mg / kg (peritoneal cavity of rats)
[0004] Based on the effect of hydrogen on arthritis, psoriasis, vitiligo and other diseases and the high permeability of hydrogen molecules, hydrogen patches may be a good choice for hydrogen therapy for these diseases. There are no relevant literature or patent reports on hydrogen patches

Method used

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  • Slow-release hydrogen material as well as preparation method and application thereof
  • Slow-release hydrogen material as well as preparation method and application thereof
  • Slow-release hydrogen material as well as preparation method and application thereof

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preparation example Construction

[0038] The invention provides a slow-release hydrogen material ZnO 1-xThe preparation method of the method is a solution method, and the specific method is: a certain amount of zinc acetate, sodium borohydride, water, and ethylene glycol are mixed, and the molar ratio is 1: (5~20): (500~2000) : (150~300), then heated and refluxed at 120~140°C for 1~3 h under stirring, centrifuged after natural cooling, washed twice with water and twice with ethanol, and dried to obtain ZnO 1-x powder.

[0039] The main reactions that take place in the preparation process are:

[0040] Zn(CH 3 COO) 2 +2H 2 O=Zn(OH) 2 +CH 3 COOH;

[0041] Zn(OH) 2 =ZnO+H 2 O (120~130°C);

[0042] NaBH 4 + 4CH 3 COOH = NaOOCCH 3 + B(CH 3 COO) 3 + 4H 2 ;

[0043] NaBH 4 + 4H 2 O = NaB(OH) 4 + 4H 2 ;

[0044] NaBH 4 + 2HOCH 2 CH 2 OH = NaB(OCH 2 CH 2 O) 2 + 4H 2 ;

[0045] 4ZnO + xNaBH 4 = xNaB(OH) 4 + 4ZnO 1-x ; (Essentially NaBH 4 The active hydrogen produced by hydrolys...

Embodiment 1

[0048] Mix a certain amount of zinc acetate, sodium borohydride, water, and ethylene glycol, wherein the zinc acetate is 10 mmol, and their molar ratio is 1:8:1000:500, and then heat and reflux at 130 °C for 1 h under stirring conditions. After natural cooling, centrifuge, wash twice with water, wash twice with ethanol, and dry to obtain ZnO 1-x powder. The ZnO 1-x XRD of the powder as figure 1 As shown, XRD shows that the powder is ZnO structure.

[0049] Weigh 500 mg ZnO 1-x powder, then add 5 mL of deionized water, oscillate and mix and let it stand still, while recording the time with a stopwatch, and measure and record the dissolved hydrogen content in the liquid with a DH200 dissolved hydrogen meter. Since the dissolved hydrogen in the water will continue to diffuse into the air, the curve of the measured dissolved hydrogen content changing with time is an indirect reflection of the ZnO 1-x Reacts with water to release hydrogen. from the result ( figure 2 ) It ca...

Embodiment 2

[0051] Mix a certain amount of zinc acetate, sodium borohydride, water, and ethylene glycol, in which the zinc acetate is 10 mmol, and their molar ratio is 1:5:1111:523, and then heat and reflux at 130 °C for 2 h under stirring. After cooling, centrifuge, wash twice with water, wash twice with ethanol, and dry to obtain ZnO 1-x powder. Weigh 500 mg of the ZnO 1-x powder, then add 5 mL of deionized water, oscillate and mix and let it stand still, while recording the time with a stopwatch, and measure and record the dissolved hydrogen content in the liquid with a DH200 dissolved hydrogen meter. The measured hydrogen release curve is as image 3 As shown in the red line, the results show that the ZnO 1-x The powder can react with water to produce hydrogen stably and continuously.

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Abstract

The invention relates to the technical field of hydrogen production, the technical field of cosmetics and the technical field of patches, in particular to a slow-release hydrogen material as well as a preparation method and application thereof. The slow-release hydrogen material is oxygen-deficient zinc oxide ZnO (1-x), wherein 0 lt; xlt; the slow-release hydrogen material is prepared by reacting soluble zinc salt, a reducing agent, water and a high-boiling-point polar solvent. The oxygen-deficient zinc oxide material has the technical advantages that 1) the oxygen-deficient zinc oxide material prepared by the method can react with water to slowly release hydrogen, the hydrogen release rate is not obviously attenuated after 4 days, and the hydrogen release property of the oxygen-deficient zinc oxide material after the oxygen-deficient zinc oxide material is stored in air for one month and reacts with water is not obviously changed; and 2) the prepared slow-release hydrogen material has important application prospects in hydrogen health fields such as hydrogen masks and hydrogen patches.

Description

technical field [0001] The invention relates to the technical fields of hydrogen production, cosmetics and patches, in particular to a slow-release hydrogen material and its preparation method and application. Background technique [0002] In 1975, Dole et al. wrote in Science that they found that high-pressure hydrogen can effectively inhibit the growth of tumors in mice with squamous cell carcinoma, and proposed the possibility of hydrogen therapy to treat cancer. In 2007, Professor Shigeo Ota of Nihon Medical University reported in Nature Medicine the selective antioxidant mechanism of hydrogen in treating ischemia-reperfusion injury and inflammation, which promoted the rapid development of hydrogen biology and medicine. More than a decade later, it was discovered that hydrogen has therapeutic effects on a variety of oxidative stress / inflammation-related diseases, including cancer, atherosclerosis, ischemia-reperfusion injury, stroke, diabetes, neurodegenerative diseases,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02C01B3/06A61K33/00A61P35/00A61K8/19A61Q19/00
CPCC01G9/02C01B3/061A61K33/00A61P35/00A61K8/19A61Q19/00
Inventor 吴勇周凌虞谢镭郑捷李星国
Owner 苏州清德氢能源科技有限公司