Iron-doped nickel phosphide nanoparticles and preparation method thereof
A nanoparticle, nickel phosphide technology, applied in the direction of phosphide, nanotechnology, nanotechnology, etc., can solve the problems of difficult to clear deposition potential and time, time and material waste, and achieve low cost, simple operation, good control effect
Pending Publication Date: 2021-12-31
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology
However, in practice, it is difficult to know the potential and time of deposition, resulting in a lot of waste of time and materials
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[0029] A method for preparing iron-doped nickel phosphide nanoparticles, comprising the steps of:
[0030] (1) With 0.4mmol ferric nitrate, 1.2mmol nickel nitrate, 1.6mmol terephthalic acid and 1.12g carbon nanotube slurry as raw materials, with 40 milliliters of N,N-dimethylformamide and 16 milliliters of ethanol as solvent, First dissolve the four raw materials into the solvent completely to form a uniform solution;
[0031] (2) transfer the formed solution to the lining of the hydrothermal reactor;
[0032] (3) Then put the hydrothermal reactor into the oven;
[0033] (4) Raise the oven from room temperature to a preset temperature, and then keep it warm for a period of time; the holding time is 6 hours. If the holding time is too long, the structure of the nanosheets will be destroyed. If the time is not enough, it will be difficult to form nanosheets. The preset temperature of the oven is 160° C., so that the formation of the morphology can be controlled by a certain p...
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The invention discloses iron-doped nickel phosphide nanoparticles and a preparation method thereof. The preparation method comprises the following steps of (1), putting ferric nitrate, nickel nitrate, terephthalic acid and carbon nanotube slurry into 40 ml of N,N-dimethylformamide and 16 ml of ethyl alcohol, and conducting magnetic stirring for 30 min; (2) pouring the liquid into a 100ml inner container of a hydrothermal reaction kettle; (3) putting the hydrothermal reaction kettle into a drying oven, setting temperature and heat preservation time, and conducting cooling to room temperature; (4) conducting centrifuging, washing the product with water and ethanol, and conducting drying; and (5) putting a certain amount of the precursor and sodium hypophosphite at the two ends of a quartz boat, putting the quartz boat into a tubular furnace, introducing gas, setting the temperature and the heating rate, and conducting cooling to room temperature to finally obtain the iron-doped nickel phosphide nanoparticles. The prepared iron-doped nickel phosphide is large in specific surface area and multiple in active sites, the method is easy to operate and good in repeatability, large-scale preparation can be achieved, and a reliable sample preparation method is provided for application of phosphide in the aspect of water electrolysis.
Description
technical field [0001] The invention belongs to the field of preparation of novel organic porous nanometer materials, in particular to a method for preparing iron-doped nickel phosphide nanoparticles. Background technique [0002] Recently, water electrolysis technology has attracted the interest of researchers as a promising method due to its environmental protection and sustainable large-scale hydrogen production. At the same time, efficient electrolysis of water is closely related to the development of electrocatalysts. At present, the most excellent HER catalyst is Pt / C, and the OER catalyst is IrO 2 and RuO 2 , however their scarcity and high cost limit the practical application of large-scale hydrogen production. Transition metal phosphides have the characteristics of low cost, high activity, and long-lasting stability, and are suitable for high-efficiency electrolysis of water in alkaline environments. Recently, researchers have discovered a new transition metal p...
Claims
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Login to View More IPC IPC(8): C25B1/04C25B11/04C01B25/08B82Y30/00
CPCC25B1/04C25B11/04C01B25/08B82Y30/00C01P2002/72C01P2002/85C01P2004/03C01P2004/64Y02E60/36
Inventor 陈远富刘艳芳王滨张小娟马飞
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA