Title:
PALLADIUM-PLATINUM ALLOY NANOSOL CATALYST AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/213995
Kind Code:
A1
Abstract:
A preparation method for a palladium-platinum (Pd-Pt) alloy nanosol catalyst, comprising: first mixing an aqueous solution of H2PdCl4 with an aqueous solution of H2PtCl6 to obtain a precursor solution; then stirring an aqueous solution of P123 for more than 3 min; maintaining the stirring state, sequentially adding an aqueous solution of NaBH4 and the precursor solution; continuing stirring for 20-40 min to obtain the Pd-Pt alloy nanosol catalyst. The polymer compound P123 is used as a stabilizer for stabilizing by means of a weak steric hindrance effect. In the presence of P123, NaBH4 reduces a metal ion to a metal element and forms a Pd-Pt alloy nanoparticle. A final product is presented in a stable sol state. The Pd-Pt alloy nanosol catalyst prepared by the method has excellent catalytic activity and cycle stability.
Inventors:
NI WEI (CN)
WANG XUEGUANG (CN)
SHENG YAO (CN)
ZOU XIUJING (CN)
SHANG XINGFU (CN)
WANG XUEGUANG (CN)
SHENG YAO (CN)
ZOU XIUJING (CN)
SHANG XINGFU (CN)
Application Number:
PCT/CN2018/087973
Publication Date:
November 14, 2019
Filing Date:
May 23, 2018
Export Citation:
Assignee:
NANTONG LONGXIANG NEW MATERIALS TECH CO LTD (CN)
International Classes:
B01J23/44; B01J31/00
Foreign References:
| CN105879881A | 2016-08-24 | |||
| CN1864854A | 2006-11-22 | |||
| CN1986047A | 2007-06-27 | |||
| CN104801316A | 2015-07-29 | |||
| CN106984326A | 2017-07-28 | |||
| US5641723A | 1997-06-24 |
Attorney, Agent or Firm:
NANJING ZHENGLIAN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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