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Preparation method of lanthanum bismuthate nanorod

A nanorod, bismuth acid technology, applied in nanotechnology, chemical instruments and methods, bismuth compounds, etc., can solve the problem of no single-phase lanthanum bismuthate material, etc., and achieve the effects of simple preparation process, small size, and easy control.

Active Publication Date: 2018-02-02
山东艾兰药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although there have been reports on lanthanum bismuth oxide-based materials, so far there have been no reports on single-phase lanthanum bismuth oxide materials, especially nanoscale-sized lanthanum bismuth oxides, such as lanthanum bismuth oxide nanorods

Method used

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  • Preparation method of lanthanum bismuthate nanorod
  • Preparation method of lanthanum bismuthate nanorod
  • Preparation method of lanthanum bismuthate nanorod

Examples

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Embodiment 1

[0028] Step 1: first mix sodium bismuthate and lanthanum acetate evenly, wherein the molar ratio of sodium bismuthate and lanthanum acetate is 1:1, then place the mixed powder of sodium bismuthate and lanthanum acetate in the high temperature zone of the corundum tube reaction vessel, Place an alumina sheet with a size of 6×4cm in the low temperature zone of the corundum tube reaction vessel, seal the corundum tube, heat the high temperature zone to 1300°C, and the low temperature zone to 200°C, keep warm for 3 hours, and the argon flow rate is 50cm 3 / min, thus obtaining alumina flakes with white deposits on the surface.

[0029] Step 2: first fix the aluminum oxide sheet containing white deposits on the surface obtained in step 1 in the middle of the reaction vessel, then mix sodium bismuthate and lanthanum acetate that account for 30% of the water weight with water and place in the reaction vessel and seal it. Wherein the molar ratio of sodium bismuthate to lanthanum acetat...

Embodiment 2

[0031] Step 1: first mix sodium bismuthate and lanthanum acetate evenly, wherein the molar ratio of sodium bismuthate and lanthanum acetate is 1:1, then place the mixed powder of sodium bismuthate and lanthanum acetate in the high temperature zone of the corundum tube reaction vessel, Place an alumina sheet with a size of 6×4cm in the low temperature zone of the corundum tube reaction vessel, seal the corundum tube, heat the high temperature zone to 1100°C, and the low temperature zone to 100°C, keep warm for 0.5h, and the argon flow rate is 20cm 3 / min, thus obtaining alumina flakes with white deposits on the surface.

[0032] Step 2: first fix the aluminum oxide sheet containing white deposits on the surface obtained in step 1 in the middle of the reaction vessel, then mix sodium bismuthate and lanthanum acetate accounting for 5% of the water weight with water and place in the reaction vessel and seal it. Wherein the molar ratio of sodium bismuthate to lanthanum acetate is 1...

Embodiment 3

[0034] Step 1: first mix sodium bismuthate and lanthanum acetate evenly, wherein the molar ratio of sodium bismuthate and lanthanum acetate is 1:1, then place the mixed powder of sodium bismuthate and lanthanum acetate in the high temperature zone of the corundum tube reaction vessel, Place an alumina sheet with a size of 6×4cm in the low temperature zone of the corundum tube reaction vessel, seal the corundum tube, heat the high temperature zone to 1120°C, and the low temperature zone to 120°C, keep warm for 0.8h, and the argon flow rate is 25cm 3 / min, thus obtaining alumina flakes with white deposits on the surface.

[0035] Step 2: first fix the aluminum oxide sheet containing white deposits on the surface obtained in step 1 in the middle of the reaction vessel, then mix sodium bismuthate, lanthanum acetate and water that account for 7% of the water weight and place in the reaction vessel and seal it. Wherein the molar ratio of sodium bismuthate to lanthanum acetate is 1:1...

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Abstract

The invention discloses a preparation method of a lanthanum bismuthate nanorod, and belongs to the technical field of nanometer material preparation. The method is concretely characterized in that firstly, sodium bismuthate and lanthanum acetate are uniformly mixed; then, sodium bismuthate and lanthanum acetate mixed powder is put into a high-temperature region of an alundum tube reaction container; an alumina wafer is put into a low-temperature region of the alundum tube reaction container; the reaction container is sealed; the high-temperature region is heated to be 1100 to 1300 DEG C; the low-temperature region is heated to be 100 to 200 DEG C; heat insulation is performed for 0.5 to 3h; the alumina wafer containing white sediments on the surface is obtained; then, the alumina wafer isfixed in the middle of the reaction container; the sodium bismuthate, the lanthanum acetate and water are mixed and are then put into the reaction container to be sealed; heat insulation is performedfor 24 to 72h at the temperature of 300 to 500 DEG C. The two-step reaction process is used; the preparation process is simple; the control is easy; the obtained lanthanum bismuthate nanorod has goodapplication prospects in the aspects of photocatalysis, adsorption, lithium ion batteries, solid-oxide fuel batteries and the like.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a preparation method of lanthanum bismuth oxide nanorods. Background technique [0002] Bismuthate materials have good physical and chemical properties, and have good application prospects in the fields of photocatalysis, optics, supercapacitors, lithium-ion batteries, and electrochemical sensors. Lanthanum bismuthate, as an important bismuthate material, has attracted widespread attention. The Chinese invention patent "Lithium bismuthate-based solid electrolyte material and its preparation method" (Patent No.: ZL200910184915.1) discloses a preparation method of lithium bismuthate-based solid electrolyte material. This method is to weigh lithium in proportion , lanthanum, bismuth, lanthanum dopant and / or bismuth dopant nitrate or carbonate or chloride or acetate or alkoxide or oxide soluble in acid is prepared into a solution, first Add dropwise lan...

Claims

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Application Information

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IPC IPC(8): C01G29/00B82Y40/00
CPCB82Y40/00C01G29/00C01P2002/72C01P2004/04C01P2004/16
Inventor 裴立宅林飞飞
Owner 山东艾兰药业有限公司
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