Title:
CARBONIZED LA2O3 AND LU2O3 CO-DOPED MO CATHODE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/036068
Kind Code:
A1
Abstract:
A carbonized La2O3 and Lu2O3 co-doped Mo cathode material and a preparation method therefor pertain to the technical field of rare earth refractory metal cathode materials. A molybdenum substrate is doped with rare earth active substances La2O3 and Lu2O3. The total added amount of the rare earth active substances is 2.0-5.0 wt%. A rare earth oxide doped molybdenum powder is prepared by using a sol-gel method, a La2O3 and Lu2O3 doped Mo powder is obtained by using a secondary reduction process, and a molybdenum rod is obtained through compression and sintering. An un-carbonized La2O3 and Lu2O3 doped Mo cathode is obtained by processing the molybdenum rod with rotary calcination, drawing, cleaning, straightening, winding, setting, and cutting processes. The cathode is processed with a high-temperature transient carbonization process to obtain a carbonized cathode material with a high carbonization degree. The cathode is subjected to high temperature degassing and activation, to obtain an environmentally friendly non-radioactive cathode material with good emission performance and excellent emission stability.
Inventors:
WANG JINSHU (CN)
DONG LIRAN (CN)
ZHANG JIE (CN)
TIAN MINGCHUANG (CN)
LIU WEI (CN)
ZHOU MEILING (CN)
ZUO TIEYONG (CN)
DONG LIRAN (CN)
ZHANG JIE (CN)
TIAN MINGCHUANG (CN)
LIU WEI (CN)
ZHOU MEILING (CN)
ZUO TIEYONG (CN)
Application Number:
PCT/CN2016/113406
Publication Date:
March 01, 2018
Filing Date:
December 30, 2016
Export Citation:
Assignee:
UNIV BEIJING TECHNOLOGY (CN)
International Classes:
H01J23/04; H01J9/04
Foreign References:
CN106206216A | 2016-12-07 | |||
CN101447376A | 2009-06-03 | |||
CN103700557A | 2014-04-02 | |||
CN103849804A | 2014-06-11 | |||
US6281626B1 | 2001-08-28 |
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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