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- Title
Preparation of nano Pt powder prepared by liquid phase reduction method.
- Authors
WANG Ke; ZHANG Yang; LI Shihong; LI Chenhao; LIANG Xingyu; ZHU Xiaoyun
- Abstract
Nano platinum powder used in electronic paste was prepared through liquid-phase reduction method. The liquid reductant containing KBH4 as reducing agent, polyvinylpyrrolidone (PVP) or polyethylene glycol (PEG) as protective agent and additives was added into processed H2PtCl6 solution. The reduction mechanism together with influence of concentration and pH value on particle size and shape have been studied in this paper. SEM and XRD were used to characterize the prepared powder. Results showed that by controlling reaction conditions pure nano platinum powder with an average particle size of 20~100 nm can be prepared. The index of the platinum paste prepared by the above platinum powder was analyzed, which shows that it can be used to prepare catalytic platinum electrode.
- Subjects
PLATINUM electrodes; POWDERS; POLYETHYLENE glycol; LIQUIDS; X-ray diffraction; REDUCING agents
- Publication
Precious Metals / Guijinshu, 2023, Vol 44, p36
- ISSN
1004-0676
- Publication type
Article