Microwave-Assisted Polyol Synthesis of Pt/Pd and Pt/Rh Bimetallic Nanoparticles in Polymer Solutions Prepared by Batch and Continuous-Flow Processing

被引：19
作者：
Cong, Cong [1 ,2 ]
Nakayama, Sayaka [3 ]
Maenosono, Shinya [4 ]
Harada, Masafumi [3 ]
机构：
[1] Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, KLOFE, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
[2] Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, IAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
[3] Nara Womens Univ, Fac Human Life & Environm, Dept Hlth Sci & Clothing Environm, Nara 6308506, Japan
[4] Japan Adv Inst Sci & Technol, Sch Mat Sci, 1-1 Asahidai, Nomi, Ishikawa 9231292, Japan
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2018年 / 57卷 / 01期
关键词：
RAY-ABSORPTION SPECTROSCOPY; FINE-STRUCTURE SPECTROSCOPY; CORE-SHELL NANOPARTICLES; STRUCTURAL-ANALYSIS; ALLOY NANOPARTICLES; CATALYTIC-ACTIVITY; RU NANOPARTICLES; PLATINUM; PALLADIUM; CLUSTERS;
D O I：
10.1021/acs.iecr.7b03154
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Colloidal dispersions of Pt/Pd and Pt/Rh bimetallic nanoparticles have been synthesized by a microwave-assisted polyol method using ethylene glycol and glycerol as a solvent in the presence of poly(N-vinyl-2-pyrrolidone) (PVP). The structure of bimetallic nanoparticles has been investigated by means of high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS) elemental mapping, and extended X-ray absorption fine structure (EXAFS). The effectiveness of the batch and continuous-flow processing was demonstrated for the preparation of various bimetallic nanoparticles under multimode or single-mode microwave irradiation. In the single-mode microwave-assisted continuous-flow processing in contrast to the batch processing, the well-dispersed colloidal bimetallic nanoparticles were successfully produced at the boiling temperature of solvent. EXAFS analysis indicated that, in the case of Pt/Pd (1/1) and Pt/Rh (1/1) bimetallic nanoparticles prepared using both batch and continuous-flow processing, the distribution of different metallic species in a particle tended to be a "cluster-in-cluster". structure.
引用
收藏
页码：179 / 190
页数：12
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