Title:
SUPERCRITICAL HYDROTHERMAL SYNTHESIS METHOD FOR METAL OR METAL OXIDE NANOPARTICLES
Document Type and Number:
WIPO Patent Application WO/2015/149517
Kind Code:
A1
Abstract:
A supercritical hydrothermal synthesis method for metal or metal oxide nanoparticles comprises the following steps: fully mixing a soluble metal salt solution with an alkaline solution or with a mixture of an alkaline solution, a reducing agent solution and an organic ligand to serve as a reaction precursor of supercritical hydrothermal synthesis; using a high-pressure pump to separately pressurize and pump the reaction precursor and preheated supercritical water into a mixer, heating up by direct mixing, and then performing a supercritical hydrothermal synthesis reaction; and after reaction for a period of time, cooling, centrifuging and drying the obtained product, so as to obtain metal or metal oxide nanoparticles. The metal or metal oxide nanoparticles prepared by using the method have the advantages of small particle size, good dispersibility, and high purity.
Inventors:
WANG SHUZHONG (CN)
ZHOU LU (CN)
GUO YANG (CN)
QIAN LILI (CN)
REN MENGMENG (CN)
LI YANHUI (CN)
ZHOU LU (CN)
GUO YANG (CN)
QIAN LILI (CN)
REN MENGMENG (CN)
LI YANHUI (CN)
Application Number:
PCT/CN2014/090721
Publication Date:
October 08, 2015
Filing Date:
November 10, 2014
Export Citation:
Assignee:
UNIV XI AN JIAOTONG (CN)
XI AN WONFU ENERGY AND ENVIRONMENT TECHNOLOGIES CO LTD (CN)
WANG SHUZHONG (CN)
ZHOU LU (CN)
GUO YANG (CN)
QIAN LILI (CN)
REN MENGMENG (CN)
LI YANHUI (CN)
XI AN WONFU ENERGY AND ENVIRONMENT TECHNOLOGIES CO LTD (CN)
WANG SHUZHONG (CN)
ZHOU LU (CN)
GUO YANG (CN)
QIAN LILI (CN)
REN MENGMENG (CN)
LI YANHUI (CN)
International Classes:
B22F9/24; B22F1/054; B82Y40/00; C01G3/02
Foreign References:
| CN101612668A | 2009-12-30 | |||
| CN102618926A | 2012-08-01 | |||
| CN103058277A | 2013-04-24 | |||
| JP4399592B2 | 2010-01-20 | |||
| JP2010069474A | 2010-04-02 | |||
| JP2008162864A | 2008-07-17 | |||
| CN103934468A | 2014-07-23 | |||
| CN103935962A | 2014-07-23 | |||
| CN103949654A | 2014-07-30 |
Other References:
WANG, XIAOJUAN: "Supercritical hydrothermal synthesis of nano-sized particles", JOURNAL OF CHEMICAL INDUSTRY & ENGINEERING, vol. 28, no. 2, 30 April 2007 (2007-04-30)
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. et al. (CN)
西安通大专利代理有限责任公司 (CN)
西安通大专利代理有限责任公司 (CN)
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