Supported transition metal phosphide, preparation method thereof, and application thereof in catalytic hydrogen production

A transition metal, phosphide technology, used in phosphide, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of dangerous or expensive, polluting by-products, complicated and tedious steps, etc. The effect of few reaction steps, short reaction period and wide source of raw materials

Active Publication Date: 2018-08-28
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But not all methods are ideal, the main disadvantages are: strict equipment, high reaction conditions (high temperature and high pres

Method used

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  • Supported transition metal phosphide, preparation method thereof, and application thereof in catalytic hydrogen production
  • Supported transition metal phosphide, preparation method thereof, and application thereof in catalytic hydrogen production
  • Supported transition metal phosphide, preparation method thereof, and application thereof in catalytic hydrogen production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. Preparation of supported transition metal dicobalt phosphide (yeast as carbon source and phosphorus source)

[0046] Wash 1g of biomass material yeast with deionized water, disperse it in 30mL of deionized water, add 0.75g of sodium chloride, 50μL of glutaraldehyde and 0.1g of transition metal cobalt salt precursor cobalt acetate, and put it into a 100mL beaker Stir well. The above mixed solution was transferred into a polytetrafluoroethylene-lined autoclave for hydrothermal reaction at 190° C. for 8 h. After the reaction, it was collected by centrifugation, washed with water for 3 times, and washed with ethanol for 3 times. The collected precipitate was put into an oven and dried at 80°C for 8 hours to prepare the intermediate product a; after it was cooled to room temperature, it was placed in a tube In the furnace, the temperature was raised to 700° C. at a heating rate of 5° C. / min under an inert atmosphere, and kept for 6 hours to obtain a supported transition ...

Embodiment 2

[0058] 1. Preparation of supported transition metal dicobalt phosphide (fungus fungus as carbon source and phosphorus source)

[0059] Soak 1g of biomass material fungus, wash it with deionized water, disperse it in 30mL of deionized water, add 0.75g of sodium chloride, 50μL of glutaraldehyde and 0.1g of transition metal cobalt salt precursor cobalt acetate, and put it into a 100mL beaker Mix well. The above mixed solution was transferred into a polytetrafluoroethylene-lined autoclave for hydrothermal reaction at 190° C. for 8 h. After the reaction, it was collected by centrifugation, washed with water for 3 times, and washed with ethanol for 3 times. The collected precipitate was put into an oven and dried at 80°C for 8 hours to prepare the intermediate product a; after it was cooled to room temperature, it was placed in a tube In the furnace, the temperature was raised to 700° C. at a heating rate of 5° C. / min under an inert atmosphere, and kept for 6 hours to obtain a supp...

Embodiment 3

[0068] 1. Preparation of supported transition metal dicobalt phosphide (Mushroom as carbon source and phosphorus source)

[0069] Wash 1g of the biomass material Tricholoma tricholoma with deionized water, put it into 30mL of deionized water, add 0.75g of sodium chloride, 50μL of glutaraldehyde and 0.1g of transition metal cobalt salt precursor cobalt acetate, put it into a 100mL beaker and stir uniform. The above mixed solution was transferred into a polytetrafluoroethylene-lined autoclave for hydrothermal reaction at 190° C. for 8 h. After the reaction, it was collected by centrifugation, washed with water for 3 times, and washed with ethanol for 3 times. The collected precipitate was put into an oven and dried at 80°C for 8 hours to prepare the intermediate product a; after it was cooled to room temperature, it was placed in a tube In the furnace, the temperature was raised to 900° C. at a heating rate of 5° C. / min under an inert atmosphere, and kept for 6 hours to obtain ...

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Abstract

The invention discloses a supported transition metal phosphide and a preparation method thereof. In the preparation process of the supported transition metal phosphide, no other chemicals are introduced as a phosphorus source, production of a template is not needed, and the phosphorus element contained in a biomass material is used as the phosphorus source to form the transition metal phosphide insitu. The source of the biomass material contains a lot of carbon, hydrogen, oxygen, nitrogen, phosphorus and other elements; the biomaterial is carbonized through a simple hydrothermal process to form a carbon material having a large number of pores and a high conductivity; and the surface of the biomass material has abundant surface functional groups, and has strong adsorption ability on many heavy metal ions and strong reduction ability on high-valence metals. The preparation method has the advantages of few reaction steps, low consumption of chemical reagents, simplicity in operation, short reaction period, realization of wide sources, simplicity and easy obtaining of raw materials, energy saving, environmental protection, cost saving, and good large-scale industrial production prospect.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production catalysts, and in particular relates to a supported transition metal phosphide, its preparation method and its application in catalytic hydrogen production. Background technique [0002] Realizing the clean production of fuel is a difficult and important task, and the most important part of catalyst research has always been a hot topic of concern to experts and scholars. Hydrogen energy is a non-polluting renewable energy with high combustion value and abundant reserves. It is a new generation of clean energy that is widely used after non-renewable energy such as coal, oil and natural gas. Hydrogen is regarded as a carrier of future energy, which can be widely used in vehicles, households and electronic power equipment. Traditional hydrogen production mainly comes from natural gas or coal. The industrial hydrogen production method is mainly to extract hydrogen from water vapor through...

Claims

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Application Information

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IPC IPC(8): B01J27/185C25B1/04C25B11/04C01B25/08
CPCB01J27/1853C01B25/08C01P2002/72C01P2004/03C01P2004/04C01P2004/61C01P2004/80C25B1/04C25B11/04Y02E60/36Y02P20/10
Inventor 曹安民张天麒万立骏
Owner INST OF CHEM CHINESE ACAD OF SCI
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