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Praseodymium vanadate nanowire electrode material and preparation method thereof

An electrode material and nanowire technology, which is applied in the field of praseodymium vanadate nanowire electrode material and its preparation, has good application prospects, easy control, and simple preparation process

Inactive Publication Date: 2019-12-20
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The morphology of nanomaterials plays an important role in its performance. Although there have been reports of nano-layered structures of praseodymium vanadate composed of nanorods, so far, there has been no nano-praseodymium vanadate with other shapes, such as vanadium A report on praseodymium acid nanowires

Method used

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  • Praseodymium vanadate nanowire electrode material and preparation method thereof
  • Praseodymium vanadate nanowire electrode material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Step 1: first fix the copper sheet in the middle of the reaction vessel, then mix praseodymium chloride and sodium vanadate, which account for 35% of the water weight, with water and place in the reaction vessel and seal it, wherein the molar ratio of praseodymium chloride and sodium vanadate The ratio is 1:1, the total amount of praseodymium chloride, sodium vanadate and water accounts for 70% of the filling degree of the reaction vessel, and the copper sheet with gray deposits on the surface is obtained by microwave heating at a temperature of 450°C and holding for 3 hours.

[0025] Step 2: First mix praseodymium chloride and sodium vanadate evenly, wherein the molar ratio of praseodymium chloride and sodium vanadate is 1:1, and then place the mixed powder of praseodymium chloride and sodium vanadate in a high-temperature atmosphere furnace for reaction In the container, place the copper sheet containing gray deposits on the surface obtained in step 1 in the water-cool...

Embodiment 2

[0027] Step 1: first fix the copper sheet in the middle of the reaction vessel, then mix praseodymium chloride and sodium vanadate accounting for 20% of the water weight with water and place in the reaction vessel and seal it, wherein the molar ratio of praseodymium chloride and sodium vanadate The ratio is 1:1, the total amount of praseodymium chloride, sodium vanadate and water accounts for 40% of the filling degree of the reaction vessel, and the copper sheet with gray deposits on the surface is obtained by microwave heating at a temperature of 400°C and holding for 2 hours.

[0028] Step 2: First mix praseodymium chloride and sodium vanadate evenly, wherein the molar ratio of praseodymium chloride and sodium vanadate is 1:1, and then place the mixed powder of praseodymium chloride and sodium vanadate in a high-temperature atmosphere furnace for reaction In the container, place the copper sheet containing gray deposits on the surface obtained in step 1 in the water-cooled lo...

Embodiment 3

[0030] Step 1: first fix the copper sheet in the middle of the reaction vessel, then mix praseodymium chloride and sodium vanadate, which account for 22% of the water weight, with water and place in the reaction vessel and seal it, wherein the molar ratio of praseodymium chloride and sodium vanadate The ratio is 1:1, the total amount of praseodymium chloride, sodium vanadate and water accounts for 45% of the filling degree of the reaction vessel, and the copper sheet with gray deposits on the surface is obtained by heating at a temperature of 410 °C for 2.2 hours by microwave .

[0031] Step 2: First mix praseodymium chloride and sodium vanadate evenly, wherein the molar ratio of praseodymium chloride and sodium vanadate is 1:1, and then place the mixed powder of praseodymium chloride and sodium vanadate in a high-temperature atmosphere furnace for reaction In the container, place the copper sheet containing gray deposits on the surface obtained in step 1 in the water-cooled l...

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Abstract

The invention discloses a praseodymium vanadate nanowire electrode material and a preparation method thereof, and belongs to the technical field of functional material preparation. The praseodymium vanadate nanowires are composed of tetragonal PrVO4 crystal phases; and the nanowires have diameters of 50-150 nm and a length of more than 10 [mu]m. The preparation method of the electrode material comprises the following steps: firstly fixing a copper sheet in the middle of a reaction container, then mixing praseodymium chloride, sodium vanadate and water, placing the mixture in the reaction container, performing sealing, performing heating by microwaves, and performing heat preservation to obtain a copper sheet with the surface containing a grey deposit; and placing the uniformly-mixed praseodymium chloride and sodium vanadate in a reaction vessel of a high-temperature atmosphere furnace, placing the copper sheet in a water-cooled low-temperature area of the reaction vessel, sealing the reaction vessel, performing heating on the reaction vessel, and performing heat preservation. The method adopts a two-step reaction process and has a simple preparation process, and the praseodymium vanadate nanowires are expected to be used as the electrode material, and have good application prospects in the field of sensing devices.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional materials, and in particular relates to a praseodymium vanadate nanowire electrode material and a preparation method thereof. Background technique [0002] Vanadate has good electrochemical performance and has good application prospects in detecting different kinds of biomolecules, ions, etc. As an important rare metal vanadate, praseodymium vanadate has attracted people's research interest. Using praseodymium trioxide and vanadium pentoxide as raw materials, bulk praseodymium vanadate materials (L.T.Denisova, Y.F.Kargin, L.G.Chumilina, V.M.Denisov, V.V.Beletskii.Synthesis and heatcapacity of PrVO 4 in the temperature interval of 396-1023K. Russian Journal of Inorganic Chemistry 60(2015) 137-139.). In addition to bulk praseodymium vanadate materials, there are also literatures (J. Thirumalai, R. Chandramohan, T.A. Vijayan. A novel 3D nanoarchitecture of PrVO 4 Phosphor: Selec...

Claims

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Application Information

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IPC IPC(8): C01G31/00B82Y40/00G01N27/30G01N27/333
CPCB82Y40/00C01G31/00C01P2002/72C01P2004/03C01P2004/16G01N27/30G01N27/333
Inventor 裴立宅凌贤长陈鸿骏马悦樊传刚
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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