Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rh nano nail cluster and synthesis method thereof

A synthesis method and nano-nail technology, which can be applied in the fields of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problem that the catalytic performance of Rh nanoparticles needs to be further improved, and achieve suitable for large-scale production, good electrocatalytic activity, and shape. unique effect

Active Publication Date: 2018-07-27
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
View PDF11 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with other platinum group metal nanoparticles, the obtained Rh nanostructures are still less, mainly two-dimensional planar or three-dimensional polyhedral structures; and the catalytic performance of the obtained Rh nanoparticles still needs to be further improved.

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
  • Rh nano nail cluster and synthesis method thereof
  • Rh nano nail cluster and synthesis method thereof
  • Rh nano nail cluster and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of synthetic method of Rh nanometer material, comprises the steps:

[0032] A, 10mg rhodium acetylacetonate (Rh(acac) 3 ) and 111.1mg of polyvinylpyrrolidone (PVP-K30) were dissolved in 1mL of a mixed solvent of 70wt% ethylamine solution and 4mL of oleylamine to obtain a mixed solution, which was loaded into an autoclave with a polytetrafluoroethylene liner;

[0033] B. Place the high-pressure reaction kettle with the mixed solution in a constant temperature drying oven, raise the temperature from room temperature to 200°C, and then keep the constant temperature reaction for 8 hours;

[0034] C. Stop the reaction, cool down to room temperature naturally to obtain a gray-green colloidal solution, then add ethanol 4 times its volume, centrifugally purify, repeat washing 5 times, and obtain Rh nanomaterials after drying. The Rh nanomaterial prepared by this embodiment has the shape of a nano-nail cluster, and each nano-nail cluster is composed of 12 Rh nano-nails. ...

Embodiment 2

[0039] A kind of synthetic method of Rh nanometer material, comprises the steps:

[0040] A, 10mg rhodium acetylacetonate (Rh(acac) 3 ) and 111.1mg polyvinylpyrrolidone (PVP-K30) were dissolved in a mixed solution of 2mL 70wt% ethylamine solution and 3mL oleylamine, and then the mixed solution was charged into an autoclave with a polytetrafluoroethylene liner;

[0041] B. Place the high-pressure reaction kettle with the mixed solution in a constant temperature drying oven, raise the temperature from room temperature to 200°C, and then keep the constant temperature reaction for 8 hours;

[0042] C. Stop the reaction, cool down to room temperature naturally to obtain a gray-green colloidal solution, then add 4 times its volume of ethanol for centrifugal purification, wash, and dry to obtain Rh nanomaterials in the form of nanonail clusters. The Rh nanomaterial prepared by this embodiment has the shape of a nano-nail cluster, and each nano-nail cluster is composed of 12 Rh nano-...

Embodiment 3

[0044]A kind of synthetic method of Rh nano material, the steps are as follows:

[0045] A, 10mg rhodium acetylacetonate (Rh(acac) 3 ) and 111.1mg of polyvinylpyrrolidone (PVP-K30) were dissolved in a mixed solution of 1mL of 70wt% ethylamine solution and 4mL of oleylamine, and packed into an autoclave with a polytetrafluoroethylene liner;

[0046] B. Place the high-pressure reaction kettle with the mixed solution in a constant temperature drying oven, raise the temperature from room temperature to 200°C, and then keep the constant temperature reaction for 4 hours;

[0047] C, stop the reaction, cool down to room temperature naturally to obtain a gray-green colloidal solution, then add 4 times its volume of ethanol for centrifugal purification, wash, and dry to obtain Rh nanomaterials in the form of nano-nail clusters. The Rh nanomaterial prepared by this embodiment has the shape of a nano-nail cluster, and each nano-nail cluster is composed of 12 Rh nano-nails. The nail cap ...

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
Lengthaaaaaaaaaa
Widthaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of inorganic nanomaterial preparation and particularly discloses a rhodium nano nail cluster and a synthesis method of the rhodium nano nail cluster. According to the method, the Rh nano nail cluster with unique morphology and a unique structure is synthesized by a solvothermal method by taking rhodium acetylacetonate as a precursor, oleylamine and ethylamine as a solvent, a reducer and a morphology control agent and polyvinylpyrrolidone as a stabilizing agent. The prepared Rh nano nail cluster comprises 12 Rh nano nails; nail caps of the Rh nano nails are pentagonal pyramids; nail studs are pentagonal prisms; the single Rh nano nail is 25-105nm in length and 7-15nm in width; the prepared Rh nano nail cluster is uniform in particle size, large in specific surface area and high in atom utilization ratio and shows good electrocatalytic activity; and compared with the traditional Rh catalyst, the electrocatalytic activity is improved obviously.

Description

technical field [0001] The invention belongs to the technical field of novel nanomaterials and their preparation, and in particular relates to a Rh nano-nail cluster and a synthesis method thereof. Background technique [0002] Platinum group metals are industrially important catalysts, and their high catalytic performance in some important chemical synthesis is still irreplaceable. However, the natural resources of platinum group metals are rare, expensive, and costly to use; therefore, in recent years, people have tried to use nanotechnology to prepare nanoparticles with different shapes and structures to improve their catalytic efficiency, reduce their dosage, and reduce The cost. The properties of platinum group metal nanomaterials are closely related to their particle size and morphology. So far, the precise modulation of the particle size of platinum group metal nanomaterials and the controlled synthesis of their morphology and surface structure have been research ho...

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
IPC IPC(8): B22F1/00B22F9/24B01J23/46B01J35/02B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00B01J23/462B22F9/24B22F1/07B01J35/40
Inventor 黄涛付惟楚李玫李金林
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com