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一種高比表面積單晶納米棒的制備方法
(The utilization of one-dimensional perovskite nanomaterials for the combustion of volatile organic compounds)

Summary

In recent years, lanthanum hydroxide (La (OH) 3) material has been widely applied in areas such as heterogeneous catalysis, materials, hydrogen storage materials, electrode materials, and superconducting materials. Its performance largely depends on particle size, aggregation, pore volume and surface area, and these factors are closely linked with the materials and preparation method. It is well known that high specific surface area is conducive to improving the catalytic activity of lanthanum hydroxide nano-materials. The existing fabrication method of La (OH) 3 material has shortcomings such as severe preparation condition, poor crystallinity and small specific surface area. The invention aims to apply low dielectric propyl alcohol/water mixtures using lanthanum hydroxide precipitation method for the preparation of 1-dimensional La(OH)3 nanorods.

Technology Benefits

simple operation and strong controllability, high product yield, unity appearance, large specific surface area, ease of scalability for industrial production

Technology Application

Catalyst, glass, ceramics, electronic industry

Detailed Technology Description

The invention aims to apply low dielectric propyl alcohol/water mixtures using lanthanum hydroxide precipitation method for the preparation of 1-dimensional La(OH)3 nanorods. Techniques such as X-ray diffractometry (XRD), scanning electron microscopy (SEM) and element analysis (EDX), transmission electron microscopy (TEM) selected area electron diffraction (SAED), and specific surface area measurement were used for characterization of products. The results proved that the length, diameter and surface area of the La(OH)3 nanorods can be easily controlled through this new method.

Supplementary Information

Inventor: Dwyer, Joseph R. | Uman, Martin A. | Rassoul, Hamid K. | Jerauld, Jason | Jordan, Douglas M. | Rambo, Keith J. | Rakov, Vladimir A.
Priority Number: US7809507B2
IPC Current: G01W000100
US Class: 702004 | 324072 | 340601
Assignee Applicant: University of Florida Research Foundation Inc.inesville
Title: Lightning detector using an X-ray detector and an E- or B-field detector
Usefulness: Lightning detector using an X-ray detector and an E- or B-field detector
Summary: For use in e.g. airplanes, homes, and offices.
Novelty: Lightning detection system for use in e.g. airplanes has microprocessor that determines when lightning will strike or has struck based on electric or magnetic field data and x-ray data

Industry

Environmental/Green Technology

Sub Category

Weather Monitoring

Application Date

2008.11.21

Application No.

200810180057

Others

Granted

ID No.

B82/AC/Util/CN01

Country/Region

Hong Kong