Preparation of small-sized hydroxyl iron oxide nanorod

A nanoparticle and rod-shaped technology, which is applied in the field of rod-shaped β-FeOOH nanoparticles and its preparation, can solve the problems of low specific surface area and inability to catalyze degradation applications, and achieve the effects of simple preparation process, easy-to-control product composition, and uniform product distribution

Inactive Publication Date: 2018-12-21
NORTHEAST NORMAL UNIVERSITY
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The β-FeOOH prepared by these methods has a wide particle size distribution and a low specific surface area. Therefore, they cannot be better used in electrode materials, sensitive components and catalytic degradation of organic pollutants.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation of small-sized hydroxyl iron oxide nanorod
  • Preparation of small-sized hydroxyl iron oxide nanorod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of β-FeOOH nano rod, comprises the steps:

[0024] (1) Mix 40mL of deionized water and 40mL of KMnO 4 Prepare a light purple solution a with a pH of 4.0-5.0.

[0025] (2) Then weigh 0.76g of FeCl 3 ·6H 2 O was dissolved in solution a, and a dark yellow solution b with a volume of 80 ml was obtained after stirring for 1 minute and ultrasonic dispersion.

[0026] (3) Put solution b into a constant temperature drying oven, and heat-treat at 80° C. for 4 hours to obtain solution c and precipitate d.

[0027] (4) The precipitate d was collected by centrifugation, ultrasonically cleaned with deionized water and absolute ethanol, and finally dried to obtain the yellow-brown target product, namely β-FeOOH nanorods.

[0028] figure 1 It is the XRD spectrum pattern of the product obtained in Example 1. Compared with the standard β-FeOOH spectrum (JCPDS: 341266), the obtained product is high-purity β-FeOOH.

[0029] figure 2 It is the TEM picture of...

Embodiment 2

[0031] The preparation method of β-FeOOH nano rod, comprises the steps:

[0032] (1) Mix 40mL of deionized water and 40mL of 10mM KMnO 4 The purple solution a has a pH of 4.0 to 5.0.

[0033] (2) Then weigh 0.76g of FeCl 3 ·6H 2 O was dissolved in solution a, and a purple solution b with a volume of 80 ml was obtained after 3 minutes of stirring mixing and ultrasonic dispersion.

[0034] (3) Put solution b into a constant temperature drying oven, and heat-treat at 80° C. for 4 hours to obtain solution c and precipitate d.

[0035] (4) The precipitate d was collected by centrifugation, ultrasonically cleaned with deionized water and absolute ethanol, and finally dried to obtain the brown target product, namely β-FeOOH nanorods.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of a hydroxyl iron oxide nanorod, relating to the technical field of nano materials. The preparation method of the hydroxyl iron oxide nanorod comprises the steps of dissolving FeCl3.6H2O in water, then adding potassium permanganate, performing thermal treatment while stirring, and reacting to obtain the hydroxyl iron oxide nanorod that has a diameter of 35 nm and is 5 nm wide. The small-sized rod-like nano iron oxide is acquired in one step through hydrolysis of ferric chloride and strong oxidation of potassium permanganate. Specifically, the method comprises steps of adding FeCl3.6H2O and deionized water in deionized water, ultrasonic dissolving and then adding potassium permanganate, reacting during stirring for a while, and ultrasonic washing to obtain small-sized beta-FeOOH nanorods with particles distributed uniformly.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a rod-shaped β-FeOOH nanoparticle and a preparation method thereof. Background technique [0002] β-FeOOH is a widely distributed iron oxide, and its usual crystal shapes are needle-like, rod-like, etc. As a commonly used electrode material, it has great applications in the preparation of supercapacitors and lithium-ion batteries, and is an important raw material for high-quality sensitive components. [0003] The preparation methods of β-FeOOH have been reported to include chemical precipitation method, hydrothermal synthesis method, air oxidation method and sol-gel method. The β-FeOOH usually prepared by the above method is in the shape of a spindle, a rod, and a needle, and then further assembled into a flower cluster or a hollow sea urchin. The β-FeOOH prepared by these methods has a wide particle size distribution and a low specific surface area. Therefore, they cann...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/02B82Y40/00
CPCB82Y40/00C01G49/02C01P2002/72C01P2004/04C01P2004/16C01P2004/64
Inventor 张国栋邢双喜
Owner NORTHEAST NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap