A kind of novel nickel phosphide catalyst and preparation method thereof

A catalyst, nickel phosphide technology, applied in electrolytic components, electrodes, electrolytic process, etc., to achieve low cost, broad application prospects, and excellent catalytic reaction activity

Active Publication Date: 2021-01-08
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this method introduces nitrogen and phosphorus heteroatoms through the MOFs precursor, it still requires an external phosphorus source to obtain a phosphide catalyst.

Method used

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  • A kind of novel nickel phosphide catalyst and preparation method thereof
  • A kind of novel nickel phosphide catalyst and preparation method thereof
  • A kind of novel nickel phosphide catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A method for preparing a nickel phosphide catalyst with nitrogen and phosphorus co-doped porous carbon coated catalyst centers evenly distributed, the steps are as follows:

[0048] 1) Preparation of MOFs precursors containing nitrogen and phosphorus atoms:

[0049] Disperse nickel sulfate, 2,4,6-trimethylbenzene-1,3,5-trimethylenetriphosphonic acid ligand and 4,4'-bipyridyl into deionized water, and configure the concentration to be 0.15 molar per liter, 0.1 molar per liter and 0.15 molar per liter solutions, and use the attached figure 1 The device puts the raw materials into the mixer and enters the reaction zone. The temperature of the reaction zone is 100°C, and the residence time is 80 minutes. The product is collected at the nozzle at the end, centrifuged or filtered to separate the product, and the nitrogen-containing phosphorus can be obtained. Atomic MOFs precursors.

[0050] 2) Weigh 0.5 g of the MOFs precursor containing nitrogen and phosphorus atoms in st...

Embodiment 2

[0056] A method for preparing a nickel phosphide catalyst with nitrogen and phosphorus co-doped porous carbon coated catalyst centers evenly distributed, the steps are as follows:

[0057] 1) Preparation of MOFs precursors containing nitrogen and phosphorus atoms:

[0058] Disperse nickel sulfate, 2,4,6-trimethylbenzene-1,3-dimethylene diphosphonic acid ligand and 4,4'-bipyridine into deionized water, and configure the concentrations to be 0.15 moles per liter, 0.1 mole per liter and 0.15 mole per liter solution, and use the attached figure 1 The device puts the raw materials into the mixer and enters the reaction zone. The temperature of the reaction zone is 100°C, and the residence time is 80 minutes. The product is collected at the nozzle at the end, centrifuged or filtered to separate the product, and the nitrogen-containing phosphorus can be obtained. Atomic MOFs precursors.

[0059] 2) Weigh 0.5 g of the MOFs precursor containing nitrogen and phosphorus atoms in step 1...

Embodiment 3

[0061] A method for preparing a nickel phosphide catalyst with nitrogen and phosphorus co-doped porous carbon coated catalyst centers evenly distributed, the steps are as follows:

[0062] 1) Preparation of MOFs precursors containing nitrogen and phosphorus atoms:

[0063] Disperse nickel sulfate, 2,4,6-trimethylbenzene-1,3,5-trimethylenetriphosphonic acid ligand and 4,4'-bipyridyl into deionized water, and configure the concentration to be 0.15 molar per liter, 0.2 molar per liter and 0.15 molar per liter solutions, and use the attached figure 1 The device puts the raw materials into the mixer and enters the reaction zone. The temperature of the reaction zone is 100°C, and the residence time is 80 minutes. The product is collected at the nozzle at the end, centrifuged or filtered to separate the product, and the nitrogen-containing phosphorus can be obtained. Atomic MOFs precursors.

[0064] 2) Weigh 0.5 g of the MOFs precursor containing nitrogen and phosphorus atoms in st...

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Abstract

The invention relates to a novel nickel phosphide catalyst, the catalyst has a large specific surface area and pore volume, and is distributed in multi-level pores, and the catalyst is Ni 2 A composite material in which the P catalytically active centers are uniformly dispersed in the nitrogen-phosphorus co-doped carbon network skeleton. The preparation method includes the following steps: 1) Preparation of MOFs precursors containing nitrogen and phosphorus atoms: respectively weigh phosphorus-containing and nitrogen-containing organic ligands and nickel salts and dissolve them in a certain amount of deionized water to obtain three solutions; Nitrogen and phosphorus atom-containing MOFs precursors were synthesized by micro-droplet method; 2) A certain amount of nitrogen and phosphorus atom-containing MOFs precursors were placed in a corundum porcelain boat, and then calcined in a tube furnace to obtain nitrogen and phosphorus co-doping A nickel phosphide catalyst with evenly distributed catalytic centers covered by porous carbon. The catalyst of the invention has large specific surface area and pore volume, is beneficial to electrochemical catalysis, hydrodesulfurization, selective hydrogenation and other hydrogenation reactions, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical fields of materials and energy, in particular to a novel nickel phosphide catalyst and a preparation method thereof. Background technique [0002] With the rapid development of the world's population and economy, energy has been regarded as the most basic demand for the development of human society. However, fossil fuels such as coal and oil are increasingly depleted due to their limited reserves and non-renewable resources, which greatly limit the development of society and economy. develop. At the same time, a series of environmental problems caused by the development and utilization of fossil energy also affect human health and development. Therefore, for the consideration of sustainable economic development and environmental protection, the development and utilization of green, renewable and clean energy is a key problem that needs to be solved urgently in the field of energy technology today. Hydrogen energ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/075C25B1/04
CPCC25B1/04C25B11/04Y02E60/36
Inventor 赵学波闫理停姜慧敏王颖
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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