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)
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.
simple operation and strong controllability, high product yield, unity appearance, large specific surface area, ease of scalability for industrial production
Catalyst, glass, ceramics, electronic industry
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.
Patent Number: CN101407329B
Application Number: CN200810180057A
Inventor: Jiguang Deng | Hongxing Dai | Lei Zhang | Zetang Ou
Priority Date: 21 Nov 2008
Priority Number: CN101407329B
Application Date: 21 Nov 2008
Publication Date: 11 Aug 2010
IPC Current: C01F001700
Assignee Applicant: Baptist University of Hong Kong | Univ Beijing Technology
Title: Method of preparing single crystal La(OH)3 nano-rod having high specific surface area | A kind of high specific surface area single crystal La (OH) preparation method 3 nanometre rod
Usefulness: Method of preparing single crystal La(OH)3 nano-rod having high specific surface area | A kind of high specific surface area single crystal La (OH) preparation method 3 nanometre rod
Summary: Method of preparing single crystal lanthanum hydroxide nanorod (claimed).
Novelty: Single crystal lanthanum hydroxide nanorod preparation by dissolving soluble lanthanum salt into mixture of acetone and water, adding ammonia as depositing agent, treating at constant temperature, and filtering and washing obtained crystal
Chemical/Material
Chemical/Material Application
2008.11.21
200810180057
Granted
B82/AC/Util/CN01
Hong Kong
