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Vermicular Sb2Se3 hydrogen storage material and preparation method thereof

A hydrogen storage material and worm-like technology, applied in the field of hydrogen storage materials and preparation, can solve the problems of product purification, high energy consumption, strict equipment requirements, etc., and achieve the effect of simple device, low price and uniform particle size

Inactive Publication Date: 2012-07-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention is to solve the technical problems that the existing method for preparing carbon nanotube hydrogen storage materials has strict requirements on equipment, high energy consumption, and the product needs to be purified, and provides worm-like Sb 2 Se 3 Hydrogen storage material and preparation method thereof

Method used

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  • Vermicular Sb2Se3 hydrogen storage material and preparation method thereof
  • Vermicular Sb2Se3 hydrogen storage material and preparation method thereof
  • Vermicular Sb2Se3 hydrogen storage material and preparation method thereof

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specific Embodiment approach 1

[0015] Specific embodiment 1: This embodiment The worm-like Sb of the present invention 2 Se 3 The hydrogen storage material is made of potassium antimony tartrate (K(SbO)C 4 H 4 O 6 ·0.5H 2 O), sodium selenite (Na 2 SeO 3 ·5H 2 O) Worm-like Sb made by solvothermal synthesis of glucose and mixed solvents 2 Se 3 ; Among them, the molar ratio of potassium antimony tartrate and sodium selenite is 2:2.9~3.1, the mass ratio of potassium antimony tartrate and glucose is 1:1.1~4.5, and the mass-volume ratio of potassium antimony tartrate and mixed solvent is 1g:230~ 250 mL, the mixed solvent is formed by mixing ethylenediamine and ethylene glycol in a volume ratio of 1:2 to 3.

[0016] Worm-shaped Sb of this embodiment 2 Se 3 The preparation method of the hydrogen storage material adopts low raw material price, simple device and simple operation. The worm-like Sb 2 Se 3 The microscopic appearance of the hydrogen storage material is worm-like, with a diameter of 1 to 2 μm and a length of ...

specific Embodiment approach 2

[0017] The second embodiment: the worm-like Sb of this embodiment 2 Se 3 The preparation method of hydrogen storage material is carried out according to the following steps:

[0018] 1. The molar ratio of potassium antimony tartrate to sodium selenite is 2:2.9~3.1, the mass ratio of potassium antimony tartrate to glucose is 1:1.1~4.5, and the mass-volume ratio of potassium antimony tartrate to mixed solvent is 1g:230 Weigh antimony potassium tartrate (K(SbO)C 4 H 4 O 6 ·0.5H 2 O), sodium selenite (Na 2 SeO 3 ·5H 2 O), glucose and mixed solvent are mixed uniformly to obtain a mixed solution; the mixed solvent is made by mixing ethylenediamine and ethylene glycol in a volume ratio of 1:2~3;

[0019] 2. Transfer the mixed solution obtained in step 1 to a reaction kettle, and place it in an oven at a temperature of 140-200°C for 1.5-18 hours;

[0020] 3. Take out the reaction kettle, cool it to room temperature naturally, pour out the product and wash it with absolute ethanol and distill...

specific Embodiment approach 3

[0022] Specific embodiment three: This embodiment is different from specific embodiment two in that in step one, the molar ratio of potassium antimony tartrate to sodium selenite is 2:2.95~3.05, and the mass ratio of potassium antimony tartrate to glucose is 1:1.5~ 3.5. The mass volume ratio of potassium antimony tartrate to the mixed solvent is 1g:235~245mL. Others are the same as the second embodiment.

[0023] In this embodiment, glucose is a surfactant.

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Abstract

The invention discloses a vermicular Sb2Se3 hydrogen storage material and a preparation method thereof, and relates to a hydrogen storage material and a preparation method. The utility model aims at solving the technical problems that the requirement for equipment is strict, the energy consumption is larger and the product needs to be purified in the existing method for preparing the carbon nano tube hydrogen storage material. The vermicular Sb2Se3 hydrogen storage material is a vermicular Sb2Se3 which is prepared by adopting a solvothermal synthesis method for antimony potassium tartrate, sodium selenite, glucose and a mixed solvent. The preparation method comprises the following steps of: uniformly mixing the antimony potassium tartrate, the sodium selenite, the glucose and the mixed solvent, adding the mixture into a reactor for reaction, cleaning a product and obtaining the vermicular Sb2Se3 hydrogen storage material. The diameter of the vermicular Sb2Se3 hydrogen storage material is 1-2mum, and the length of the vermicular Sb2Se3 hydrogen storage material is tens of micrometers; each vermicular Sb2Se3 is formed by self assembly of numerous Sb2Se3 nanosheets. The discharging capacity of the vermicular Sb2Se3 hydrogen storage material is up to 248mAhg-1, and the purity of the vermicular Sb2Se3 hydrogen storage material is up to 99%-100%; and the vermicular Sb2Se3 hydrogen storage material can be applied in the field of large-scale hydrogen storage.

Description

Technical field [0001] The invention relates to a hydrogen storage material and a preparation method. Background technique [0002] At present, the world has paid great attention to energy and environmental issues. With the development of the economy, people’s demand for resources is increasing. Fossil fuels can no longer meet people’s demand for energy. At the same time, human over-exploitation of nature has caused serious environmental pollution and environmental damage. The carbon dioxide produced by burning fossil fuels The “greenhouse effect” and organic pollution caused by greenhouse gases are becoming more and more serious, and the development of clean and efficient new energy is urgent. As the only pollution-free and renewable energy, hydrogen energy is undoubtedly a new generation of energy widely used after non-renewable energy such as petroleum, coal and natural gas. The most critical problem hindering the large-scale use of hydrogen energy is the storage and transpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/04
Inventor 陈刚邹贤金仁成邓明达闫春爽孙帅
Owner HARBIN INST OF TECH
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