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Preparation method of catalyst for hydrogen production based on Ru/r-CoP composite material hydrolysis

A composite material, hydrogen production technology by hydrolysis, applied in physical/chemical process catalysts, chemical instruments and methods, hydrogen production, etc., can solve the problems of hydrogen evolution rate restriction and slow hydrogen evolution rate

Active Publication Date: 2020-11-10
GUANGXI NORMAL UNIV
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Problems solved by technology

However, the rate of hydrogen evolution of sodium borohydride is slow. This slow hydrogen evolution rate is an important factor that restricts people's use of hydrogen energy. It prompts us to seek a suitable catalyst to make its hydrogen evolution rate fast and stable.

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  • Preparation method of catalyst for hydrogen production based on Ru/r-CoP composite material hydrolysis
  • Preparation method of catalyst for hydrogen production based on Ru/r-CoP composite material hydrolysis
  • Preparation method of catalyst for hydrogen production based on Ru/r-CoP composite material hydrolysis

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Embodiment Construction

[0019] Below will combine the appended in the embodiment of the present invention Figure 1 to Figure 6 , to describe the technical solutions in the embodiments of the present invention.

[0020] One, embodiment 1,2,3,4,5,6

[0021] Step (1), preparation of cobalt-based precursor (CoOOH): 0.71 g of cobalt acetate tetrahydrate and 0.82 g of sodium acetate trihydrate were ultrasonically dissolved in 60 mL of deionized water. Cobalt-based precursors were obtained by hydrothermal reaction at 120 °C. The product was collected by centrifugation, washed several times with deionized water, and dried in a blast drying oven for 12 hours.

[0022] Step (2), preparation of cobalt phosphide (CoP) precursor: Weigh 60 mg of the cobalt-based precursor in step (1) and place it in a quartz porcelain boat, and add 1.0 g of sodium hypophosphite to another quartz boat. The sample was kept in an inert gas atmosphere in the same tube furnace at 350°C for 2 hours, and the product was obtained afte...

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Abstract

The invention belongs to the field of chemical hydrogen evolution energy, and particularly relates to a preparation method of a catalyst for hydrogen production based on Ru / rCoP composite material hydrolysis, which comprises the following steps: preparing a cobalt-based precursor, a cobalt phosphide (CoP) precursor and a phosphorus hole precursor (r-CoP); dispersing the phosphorus hole precursor (r-CoP) in water, adding a proper amount of ruthenium trichloride hydrate, and adding a sodium borohydride solution for reduction; performing centrifuging, washing and drying to obtain a phosphorus hole precursor loaded ruthenium composite material (Ru / r-CoP); by enriching the phosphorus hole loaded ruthenium nano composite material, the dispersity and conductivity of ruthenium loaded on a precursor are improved, so that the intrinsic catalytic activity is improved, and the Ru / r-CoP composite material shows efficient hydrogen evolution performance in an alkaline sodium borohydride aqueous solution; and an effective synthetic route is provided for preparing an efficient sodium borohydride hydrolysis hydrogen evolution catalyst.

Description

technical field [0001] The invention belongs to the field of chemical hydrogen evolution energy, specifically based on Ru / r -The preparation method of the CoP composite material hydrolysis hydrogen production catalyst. Background technique [0002] The massive consumption of fossil energy sources (such as coal, oil, and natural gas) and the growing concern about environmental issues have prompted researchers to actively seek renewable energy sources to replace traditional fossil fuels. Hydrogen energy is considered as a promising energy carrier due to its relatively high energy density, environmental friendliness, and potential use in energy conversion devices. In various hydrogen storage materials (such as NaBH 4 , LiAlH 4 , MgH 2 etc.), NaBH 4 It is considered to be the best hydrogen storage material, with its hydrogen storage capacity as high as 10.6%, high hydrogen purity, good room temperature stability, environmental protection and safety of the product, and has ...

Claims

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Application Information

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IPC IPC(8): B01J27/185C01B3/04
CPCB01J27/1856C01B3/042C01B2203/0277B01J35/394B01J35/33Y02E60/36
Inventor 杨秀林周树清杨玉婷
Owner GUANGXI NORMAL UNIV
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