A kind of metal phosphide nanofiber and preparation method thereof

A metal phosphide and nanofiber technology, which is applied in the chemical characteristics of fibers, textiles and paper making, etc., can solve the problems of phosphine gas being highly toxic, endangering health, and entering phosphine gas.

Active Publication Date: 2021-04-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the phosphine gas produced by this method is highly toxic. Although the tail gas can be treated by the oxidant, a small amount of phosphine gas will still enter the atmosphere, pollute the environment, and endanger health.

Method used

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  • A kind of metal phosphide nanofiber and preparation method thereof
  • A kind of metal phosphide nanofiber and preparation method thereof
  • A kind of metal phosphide nanofiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Dissolve 0.8g of PVA in 10ml of deionized water, heat and stir to 70°C to form a uniform PVA solution.

[0026] 2) Get ammonium molybdate powder (H 24 Mo 7 N 6 o 24 4H 2 O) 0.883g, phytic acid 0.550g (the ratio of the amount of Mo and P is 1:1) was added to the above PVA solution together to obtain a mixed solution.

[0027] 3) Add 0.1ml Triton-X-100 surfactant to the above mixed solution, stir evenly to form spinning precursor solution.

[0028] 4) Pour the spinning precursor solution in step 3) into the syringe, debug the instrument to carry out electrospinning, the parameters of the electrospinning are: the distance from the spinning needle to the collecting plate is 15cm, the spinning voltage is 20kV, and the spinning solution Flow rate 0.3mL / h. After electrospinning, the precursor nanofibers on the plate are stripped.

[0029] 5) Heat treatment of the precursor nanofibers, the heat treatment process is: in Ar / H 2 Mixed atmosphere (volume ratio of 95% Ar ...

Embodiment 2

[0032] 1) Dissolve 0.9g of PVA in 10ml of deionized water, heat and stir to 70°C to form a uniform PVA solution.

[0033] 2) Take cobalt chloride powder (CoCl 2 ·6H 2 O) 1.189g, and 0.550g of phytic acid powder (the ratio of the amount of Co to P is 2:1) were added to the above PVA solution together to obtain a mixed solution.

[0034] 3) Add 0.05ml of Triton-X-100 surfactant into the above mixed solution, and stir evenly to form a spinning precursor solution.

[0035] 4) Pour the spinning precursor solution in step 3) into the syringe, and debug the instrument to carry out electrospinning. The parameters of the electrospinning are: the distance from the spinning needle to the collecting plate is 15cm, the spinning voltage is 20KV, and the spinning solution Flow rate 0.4mL / h. After electrospinning, the precursor nanofibers on the plate are stripped.

[0036]5) Heat treatment of the precursor nanofibers, the heat treatment process is: in Ar / H 2 Mixed atmosphere (volume rat...

Embodiment 3

[0039] 1) Dissolve 1.0g of PVA in 10ml of deionized water, heat and stir to 70°C to form a uniform PVA solution.

[0040] 2) Take nickel chloride powder (NiCl 2 ·6H 2 O) 1.188g, and 0.550g of phytic acid powder (the ratio of the amount of Ni to P is 2:1) were added to the above PVA solution together to obtain a mixed solution.

[0041] 3) Triton-X-100 surfactant with a concentration of 1ml is added to the above mixed solution, and stirred evenly to form a spinning precursor solution.

[0042] 4) Pour the spinning precursor solution in step 3) into the syringe, and debug the instrument for electrospinning. The parameters of the electrospinning are: the distance from the spinning needle to the collecting plate is 15cm, the spinning voltage is 18KV, and the spinning solution Flow rate 0.5mL / h. After electrospinning, the precursor nanofibers on the plate are stripped.

[0043] 5) Heat treatment of the precursor nanofibers, the heat treatment process is: in Ar / H 2 Mixed atmosp...

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Abstract

The invention discloses a metal phosphide nanofiber and a preparation method thereof. The preparation method of the metal phosphide nanofiber comprises: 1) configuring a spinning precursor solution; using metal inorganic salt as a metal source, phytic acid as a phosphorus source, polyvinyl alcohol as a polymer, water as a solvent, and Triton‑X‑100 is a surfactant; 2) obtain metal phosphide precursor nanofibers by electrospinning; 3) obtain metal phosphide nanofibers by heat treatment of metal phosphide precursor nanofibers; 4) the metal phosphide prepared by this method The chemical composition of phosphide nanofibers has the general formula M x P y , where M can be any one of Co, Ni, Cu, Mo or a combination of several in any ratio, P is phosphorus, and x, y are the stoichiometry of the metal and phosphorus in the metal phosphide. The preparation method of the invention has the characteristics of simple process, easy-to-obtain raw materials and no pollution, and the prepared metal phosphide fibers can be used in catalysts, supercapacitors and lithium-ion batteries.

Description

technical field [0001] The invention belongs to the technical field of preparation of one-dimensional nanofiber materials, and in particular relates to a process for preparing metal phosphide nanofibers. Background technique [0002] One-dimensional nanofibrous materials are considered ideal materials for directional electron transport due to their orientation properties along a certain direction. In addition, the unique structure of one-dimensional nanomaterials also gives play to its unique advantages in the fields of ceramic toughening technology, micro-electromechanical systems, and catalysis. Due to the large specific surface area of ​​nanofibers, hierarchical porous structure, high thermal stability, the bonding state and electronic state of the surface are different from those inside the fiber, and the incomplete coordination of surface atoms leads to an increase in the active sites on the surface, which makes it possess as Basic conditions for catalysts. At present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/10
CPCD01F9/10
Inventor 洪樟连全鑫瑶支明佳
Owner ZHEJIANG UNIV
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