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Sol-gel method for preparing Sm2O3 nanoarray

A nano-array and gel-based technology, applied in nanotechnology, chemical instruments and methods, rare earth metal compounds, etc., to achieve broad research and application value, easy control, and controllable size and structure

Active Publication Date: 2013-10-16
盐城市枯枝牡丹旅游开发投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] SM 2 o 3 Nanoarrays as a special structured Sm 2 o 3 Thin film materials have more excellent optical, electrical and chemical properties, and about Sm 2 o 3 The preparation method of nano-array has not been reported

Method used

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  • Sol-gel method for preparing Sm2O3 nanoarray

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Step 1: Analyze pure Sm(NO 3 ) 3 ·6H 2 Add O into 30mL deionized water, stir and dissolve on a magnetic stirrer to prepare Sm 3+ A transparent solution with a concentration of 0.01mol / L;

[0020] Step 2: Adjust the pH of the system to 4.5 with a 5% by mass ammonia solution and stir to form a sol, then add 0.5 mL of a 5% by mass polyvinyl alcohol aqueous solution to the sol, and stir evenly for use;

[0021] Step 3: Fully infiltrate the AAO template (Hefei Puyuan Nano Co., Ltd.) with a pore diameter of 20~80nm, a template diameter of Φ25~50mm, and a nanometer pore length of 10~20μm with the above sol, and clean the ITO conductive glass substrate After bonding, place it in a high-temperature drying box and dry it at 60-80°C for 1 to 2 days to make the sol slowly lose water and turn it into a gel. Then heat it at 300°C for 3 hours and then cool it down in the furnace;

[0022] Step 4: Polish the surface of the AAO template with (16±1)μm (1500 mesh) fine sandpaper, wash with deion...

Embodiment 2

[0024] Step 1: Analyze pure Sm(NO 3 ) 3 ·6H 2 Add O into 30mL deionized water, stir and dissolve on a magnetic stirrer to prepare Sm 3+ A transparent solution with a concentration of 0.05mol / L;

[0025] Step 2: Adjust the pH of the system to 5.0 by using 5% by mass ammonia solution and stir to form a sol, then add 1.5 mL of 5% by mass polyvinyl alcohol aqueous solution to the sol, and stir evenly for use;

[0026] Step 3: Fully infiltrate the AAO template (Hefei Puyuan Nano Co., Ltd.) with a pore diameter of 20~80nm, a template diameter of Φ25~50mm, and a nanometer pore length of 10~20μm with the above sol, and clean the ITO conductive glass substrate After bonding, place it in a high-temperature drying box and dry it at 60-80°C for 1 to 2 days to make the sol slowly lose water and turn it into a gel, and then heat it at 320°C for 2.5 hours and then cool it in the furnace;

[0027] Step 4: Polish the surface of the AAO template with (16±1)μm (1500 mesh) fine sandpaper, wash with deio...

Embodiment 3

[0029] Step 1: Analyze pure Sm(NO 3 ) 3 ·6H 2 Add O into 30mL deionized water, stir and dissolve on a magnetic stirrer to prepare Sm 3+ A transparent solution with a concentration of 0.1mol / L;

[0030] Step 2: Adjust the pH of the system to 5.5 with 5% by mass aqueous ammonia solution and stir to form a sol, then add 0.8 mL of 5% by mass polyvinyl alcohol aqueous solution to the sol, and stir evenly for use;

[0031] Step 3: Fully infiltrate the AAO template (Hefei Puyuan Nano Co., Ltd.) with a pore diameter of 20~80nm, a template diameter of Φ25~50mm, and a nanometer pore length of 10~20μm with the above sol, and clean the ITO conductive glass substrate After bonding, place it in a high-temperature drying box and dry it at 60-80°C for 1 to 2 days to make the sol slowly lose water and turn it into a gel. Then heat it at 350°C for 2h and then cool it down in the furnace;

[0032] Step 4: Polish the surface of the AAO template with (16±1)μm (1500 mesh) fine sandpaper, wash with deioniz...

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Abstract

A sol-gel method for preparing an Sm2O3 nanoarray comprises the following steps: adding Sm (NO3) 3.6H2O into deionized water to prepare a transparent solution; regulating the pH value of the transparent solution to 4.5-7.0, and adding an aqueous solution of polyvinyl alcohol; sufficiently soaking an AAO template with sol, bonding with a cleaned ITO (indium tin oxide) conductive glass substrate, and drying in a high-temperature drying oven to slowly dehydrate the sol into gel, performing heat treatment, and cooling in the oven; and grinding the surface of the AAO template by using sandpaper, washing with deionized water, etching by using a NAOH solution to remove the template, and washing with deionized water and ethanol to obtain the Sm2O3 nanoarray on the surface of the ITO conductive glass substrate. The Sm2O3 nanoarray is prepared by a sol-gel hard template assistive technology, so that the sol-gel method for preparing the Sm2O3 nanoarray is simple in process equipment and easy to operate; by the sol-gel method for preparing the Sm2O3 nanoarray, the nanoarray with a controllable size, a controllable structure and a high binding force can be prepared; the prepared Sm2O3 nanoarray has wide research and application values in nanoscale optical-electronic devices and other aspects.

Description

Technical field [0001] The invention relates to a method for preparing Sm 2 O 3 Nano-array method, especially relates to a sol-gel method for preparing Sm 2 O 3 Nano array method. Background technique [0002] Sm 2 O 3 It is a light yellow powder with stable chemical properties, insoluble in water, and easily soluble in inorganic acids. Sm 2 O 3 It is a new generation of energy conversion materials and photovoltaic thin film materials. Highly ordered Sm 2 O 3 The photoelectric performance of the nano-array is more excellent, and it has important significance in the theory and application of electronic devices and light guide devices. It has broad application prospects in optical materials, perpendicular magnetic recording materials, electrode materials and photocatalysts of lithium batteries. [0003] What has been reported so far is mainly for preparing Sm 2 O 3 Photoelectric thin film methods, the common ones are vacuum evaporation [VARozhkov, A. Yu. Trusova, IGBerezhnoy. Silico...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F17/00B82Y40/00
Inventor 殷立雄王丹黄剑锋郝巍李嘉胤曹丽云吴建鹏
Owner 盐城市枯枝牡丹旅游开发投资有限公司
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