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Biomass carbon/molybdenum disulfide nano composite material and preparation method thereof

A nano-composite material, biomass carbon technology, applied in molybdenum sulfide, chemical instruments and methods, physical/chemical process catalysts, etc. Broad prospects, good electrical conductivity, and the effect of increased specific surface area

Inactive Publication Date: 2017-10-27
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrogen production efficiency of the traditional alkaline electrolysis process is low, the power loss is large, and the a

Method used

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  • Biomass carbon/molybdenum disulfide nano composite material and preparation method thereof
  • Biomass carbon/molybdenum disulfide nano composite material and preparation method thereof
  • Biomass carbon/molybdenum disulfide nano composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Preparation of biomass carbon by hydrothermal method:

[0032] Accurately weigh 1.5 g of pretreated corn stalks (soaked in absolute ethanol for one week and then dry thoroughly) to the lining of a hydrothermal kettle, add 2.5 ml of concentrated sulfuric acid and 50 ml of ultrapure water, mix well, seal, and store at 180°C Under hydrothermal reaction for 48 h, natural cooling.

[0033] Biomass carbon was collected by filtration, washed three times with ultrapure water, and then thoroughly washed and dried with ethanol.

[0034] The dry biomass carbon was mixed with the active substance potassium hydroxide (KOH) at a mass ratio of 1:2, and ground evenly in an agate mortar.

[0035] Biomass carbon mixed with active material was placed in a tube furnace, pre-gassed with nitrogen (N 2 ) 30min to remove the air and start calcining. Using staged heating, first raise the temperature to 400°C and keep it for 30min, then raise the temperature to 800°C and keep it for 1h, t...

Embodiment 2

[0043] (1) Preparation of biomass carbon by hydrothermal method:

[0044] Accurately weigh 1.5 g of pretreated corn stalks into the lining of a hydrothermal kettle, add 2.5 ml of concentrated sulfuric acid and 50 ml of ultrapure water, mix evenly, seal, hydrothermally react at 200 °C for 36 h, and cool naturally.

[0045] Biomass carbon was collected by filtration, washed three times with ultrapure water, and then thoroughly washed and dried with ethanol.

[0046] The dry biomass carbon was mixed with the active substance potassium hydroxide (KOH) at a mass ratio of 1:3, and ground evenly in an agate mortar.

[0047] Biomass carbon mixed with active material was placed in a tube furnace, pre-gassed with nitrogen (N 2 ) 30min to remove the air and start calcining. Using staged heating, first raise the temperature to 400°C and keep it for 30min, then raise the temperature to 800°C and keep it for 1h, then cool naturally. The heating rate is 10°C / min.

[0048] The activated b...

Embodiment 3

[0053] (1) Preparation of biomass carbon by hydrothermal method:

[0054] Accurately weigh 1.5 g of pretreated corn stalks into the lining of a hydrothermal kettle, add 2.5 ml of concentrated sulfuric acid and 50 ml of ultrapure water, mix well and seal, hydrothermally react at 180 °C for 48 h, and cool naturally.

[0055] Biomass carbon was collected by filtration, washed three times with ultrapure water, and then thoroughly washed and dried with ethanol.

[0056] The dry biomass carbon was mixed with the active substance potassium hydroxide (KOH) at a mass ratio of 1:2, and ground evenly in an agate mortar.

[0057] Biomass carbon mixed with active material was placed in a tube furnace, pre-gassed with nitrogen (N 2 ) 30min to remove the air and start calcining. Using staged heating, first raise the temperature to 400°C and keep it for 30min, then raise the temperature to 800°C and keep it for 1h, then cool naturally. The heating rate is 10°C / min.

[0058] The activated ...

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Abstract

The invention discloses a biomass carbon/molybdenum disulfide nano composite material and a preparation method thereof. The preparation method comprises the following steps of: preparing biomass carbon by a hydrothermal method and calcination, and then growing a petal-shaped molybdenum disulfide nano material on porous biomass carbon by a one-step hydrothermal method. The biomass carbon/molybdenum disulfide nano composite material prepared has the characteristics of good electrical conductivity, stable electrochemical performance and the like, and can be used as an ideal high-performance electrocatalytic hydrogen-producing material, a lubricating agent, a battery material, a catalytic material and a hydrogen storage material and the like. The preparation method is simple in operation, low in cost and wide in application prospect.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a biomass carbon / molybdenum disulfide nanocomposite material and a preparation method thereof. Background technique [0002] The world's energy structure dominated by coal and oil has caused global environmental pollution and damage, such as acid rain and smog caused by coal combustion and vehicle exhaust emissions, ozone layer destruction caused by chlorofluorocarbon emissions, and global climate change caused by greenhouse gas emissions. Global warming and its derived glacier melting, sea level rise and other issues all endanger people's health and even survival and development. The best way to solve the energy crisis facing the world and environmental problems such as the greenhouse effect is to develop hydrogen energy. Hydrogen, as a clean energy source, produces water after combustion or catalytic oxidation, which not only does not pollute the environment, but c...

Claims

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Application Information

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IPC IPC(8): C01B32/354C01B32/324C01G39/06B82Y40/00B82Y30/00B01J27/051C25B11/06C25B1/04
CPCB01J27/051B82Y30/00B82Y40/00C01G39/06C01P2004/03C01P2004/04C01P2004/61C01P2004/80C01P2006/40C25B1/04C25B11/04Y02E60/36
Inventor 陈守刚柳昭慧王龙强
Owner OCEAN UNIV OF CHINA
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