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Method for preparing biomass carbon-loaded molybdenum sulfide electrode material by one-step method

A biomass carbon and electrode material technology, which is applied in the preparation/purification of molybdenum sulfide and carbon, electrodes, etc., can solve the problems of unsuitability for industrial production and low hydrogen production efficiency of electrolyzed water, and achieve excellent hydrogen evolution performance of electrolyzed water, excellent Electrochemical performance, uniform size effect

Pending Publication Date: 2021-10-01
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The first two methods are conducive to large-scale production, while the hydrogen production efficiency of electrolyzed water is low, which is not suitable for industrial production

Method used

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  • Method for preparing biomass carbon-loaded molybdenum sulfide electrode material by one-step method
  • Method for preparing biomass carbon-loaded molybdenum sulfide electrode material by one-step method
  • Method for preparing biomass carbon-loaded molybdenum sulfide electrode material by one-step method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Dissolve 1 g of lotus pollen and 2 g of ammonium nitrate in 12 mL of deionized water, and ultrasonicate at room temperature for 5 h. Then add 0.37g of ammonium molybdate to dissolve in the above mixture, and then ultrasonic treatment for 1h, vacuum drying at 60°C for 24h to obtain powder solid. Put the dried powder sample in a porcelain boat and put it in the downstream of the dual-temperature tube furnace in a nitrogen atmosphere, and weigh 0.5g of sublimed sulfur and put it in another porcelain boat and put it in the upstream of the dual-temperature tube furnace. The upstream and downstream calcination temperature is 500°C (heating rate 2.5°C min -1 ) and 900°C (heating rate 5°C min -1 ), calcined for 1h. After cooling to room temperature, a solid powder was obtained. XRD patterns such as figure 1 As shown in a, the XRD curve conforms to the XRD standard card of molybdenum sulfide (PDF#37-1492), indicating that the biomass carbon-supported molybdenum sulfide was s...

Embodiment 2

[0033] Dissolve 1 g of lotus pollen and 2 g of ammonium nitrate in 12 mL of deionized water, and ultrasonicate at room temperature for 5 h. Then add 0.37g of ammonium molybdate to dissolve in the above mixture, and then ultrasonic treatment for 1h, vacuum drying at 60°C for 24h to obtain powder solid. Put the dried powder sample in a porcelain boat and place it downstream of a dual-temperature tube furnace in a nitrogen atmosphere, and weigh another 1g of sublimed sulfur, put it in another porcelain boat and place it upstream of the dual-temperature tube furnace, and set it on the tube furnace respectively. The downstream calcination temperature is at 500°C (heating rate 2.5°C min -1 ) and 900°C (heating rate 5°C min -1 ), calcined for 1h. After cooling to room temperature, a solid powder was obtained. XRD patterns such as figure 1 As shown in b, the XRD curve conforms to the XRD standard card of molybdenum sulfide (PDF#37-1492), indicating that the biomass carbon-loaded m...

Embodiment 3

[0035] Dissolve 1 g of lotus pollen and 2 g of ammonium nitrate in 12 mL of deionized water, and ultrasonicate at room temperature for 5 h. Then add 0.37g of ammonium molybdate to dissolve in the above mixture, and then ultrasonic treatment for 1h, vacuum drying at 60°C for 24h to obtain powder solid. Put the dried powder sample in a porcelain boat and put it in the downstream of the dual-temperature tube furnace in a nitrogen atmosphere, and weigh 2g of sublimed sulfur in another porcelain boat and put it in the upstream of the dual-temperature tube furnace. The downstream calcination temperature is at 500°C (heating rate 2.5°C min -1 ) and 900°C (heating rate 5°C min -1 ), calcined for 1h. After cooling to room temperature, a solid powder was obtained. XRD patterns such as figure 1 As shown in c, the XRD curve conforms to the XRD standard card (PDF#37-1492) of molybdenum sulfide, indicating that the biomass carbon-loaded molybdenum sulfide was successfully prepared; the ...

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Abstract

The invention belongs to the technical field of nano material preparation, and discloses a method for preparing a biomass carbon-loaded molybdenum sulfide electrode material by a one-step method. The method comprises the following steps: lotus pollen is used as a biomass carbon source, ammonium nitrate, ammonium molybdate and sublimed sulfur are used as raw materials, and the mass ratio of the lotus pollen to the ammonium nitrate to the ammonium molybdate to deionized water to the sublimed sulfur is (1-2): (2-4): (0.37-0.74): (12-24): (0.5-5). The method is characterized by performing calcination reaction in a tubular furnace, and adjusting variables such as the content of a carbon source, ammonium nitrate, ammonium molybdate and sublimed sulfur, the reaction temperature and the like to prepare the biomass carbon-loaded molybdenum sulfide electrode material. The method is simple to operate, low in reaction temperature and low in energy consumption. The prepared molybdenum sulfide particles are good in dispersity on biomass carbon, uniform in size and high in stability. The biomass carbon-loaded molybdenum sulfide nano-composite electrode material prepared by a one-step method is applied to an electro-catalytic water desorption reaction, has excellent electrochemical performance and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and relates to a method for preparing biomass carbon-loaded molybdenum sulfide electrode materials in one step, which is used for electrocatalyzed water splitting and decomposing hydrogen reactions. Background technique [0002] With the rapid development of the modern economy, non-renewable resources are becoming increasingly exhausted with the development of the times. Countries around the world are striving to find new and sustainable energy. Energy development and protection of the earth's environment are particularly important. There are many advantages of hydrogen energy: 1. Good combustion performance: fast ignition, wide flammability range when mixed with air, high ignition point, and fast combustion speed; 2. It is a new energy-containing energy source with abundant reserves that does not rely on fossil fuels 3. High calorific value: Except for nuclear fuel, the calorif...

Claims

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Application Information

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IPC IPC(8): C25B1/04C25B11/054C25B11/065C25B11/075C01B32/05C01G39/06
CPCC25B1/04C25B11/054C25B11/065C25B11/075C01B32/05C01G39/06C01P2002/01C01P2002/72Y02E60/36
Inventor 傅小奇刘新玉杨艳芳邵梦林
Owner JIANGSU UNIV
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