Disordered-ordered structure transition in co-sputtered solid solution nanoparticles and its impact on catalytic properties

共溅射固溶体纳米粒子的无序结构转变及其对催化性能的影响

• 批准号: 22K04852
• 负责人: グエン タンマイ
• 金额: $ 2.66万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K04852/
• 关键词: solid solution alloy; intermetallics; nanoparticles; AgPt; structure transition; ORR; Pt alloy; co-sputter deposition

Bimetallic AgPt with various compositions were prepared by cosputter deposition. Substrates including liquid polyethylene glycol, solid substrate, and transmission electron microscope (TEM) grids were used. The sputter conditions were studied to obtain equimolar AgPt alloy. The structure and composition analysis confirmed the formation of solid solution alloy. Besides, trimetal alloy nanoparticles (AgPtCu) were synthesized.The catalytic performance in oxygen reduction reaction (ORR) were evaluated for tri- and bi-metal alloy nanoparticles and sputtered Pt nanoparticles. AgPt was found to outperform others. The improvement was thought to arise from the stable structure of AgPt and the formation of AgPt alloy.

双金属AGPT具有各种组成，由Cosputter沉积制备。使用了包括液态聚乙烯乙二醇，固体底物和透射电子显微镜（TEM）网格在内的底物。研究了溅射条件以获得等摩尔AGPT合金。结构和组成分析证实了固体溶液合金的形成。此外，对三元合金纳米颗粒（AGPTCU）进行了合成。评估了氧还原反应（ORR）的催化性能（ORR）的三 - 金属合金纳米颗粒和溅射的PT纳米颗粒。发现AGPT胜过其他人。人们认为改进是由AGPT的稳定结构和AGPT合金的形成产生的。

项目成果

Gold Nanoparticles Sputtered onto Oleic Acid and Oleylamine Liquids

金纳米粒子溅射到油酸和油胺液体上

• 发表时间: 2022
• 作者: Feng Xiaoyi; Nguyen Mai Thanh and Yonezawa Tetsu;Wei Jian Sim，Mai Thanh Nguyen and Tetsu Yonezawa;Yuen-ting Rachel Chau，Mai Thanh Nguyen and Tetsu Yonezawa;Mai Thanh Nguyen and Tetsu Yonezawa;Mai Thanh Nguyen and Tetsu Yonezawa
• 通讯作者: Mai Thanh Nguyen and Tetsu Yonezawa

Solid solution nanoparticles obtained by co-sputter deposition onto liquid polyethylene glycol

通过共溅射沉积到液体聚乙二醇上获得的固溶体纳米颗粒

• 发表时间: 2022
• 作者: Mingbei Zhu;Mai Thanh Nguyen and Tetsu Yonezawa;Mai Thanh Nguyen and Tetsu Yonezawa
• 通讯作者: Mai Thanh Nguyen and Tetsu Yonezawa

Structure of Bimetallic Nanoparticles Synthesized by Sputtered Deposition onto Liquid and Their Catalytic Properties

液体溅射沉积双金属纳米粒子的结构及其催化性能

• 发表时间: 2022
• 作者: Feng Xiaoyi; Nguyen Mai Thanh and Yonezawa Tetsu;Wei Jian Sim，Mai Thanh Nguyen and Tetsu Yonezawa;Yuen-ting Rachel Chau，Mai Thanh Nguyen and Tetsu Yonezawa;Mai Thanh Nguyen and Tetsu Yonezawa
• 通讯作者: Mai Thanh Nguyen and Tetsu Yonezawa

Monitor the Growth of ZnTe Microspheres in a PVP-contained Polyol System

监测含有 PVP 的多元醇系统中 ZnTe 微球的生长

• 发表时间: 2023
• 作者: Feng Xiaoyi; Nguyen Mai Thanh and Yonezawa Tetsu;Wei Jian Sim，Mai Thanh Nguyen and Tetsu Yonezawa;Yuen-ting Rachel Chau，Mai Thanh Nguyen and Tetsu Yonezawa
• 通讯作者: Yuen-ting Rachel Chau，Mai Thanh Nguyen and Tetsu Yonezawa

Pt/Ag Solid Solution Alloy Nanoparticles Co-sputtered onto Liquid Polyethylene Glycol Substrate

Pt/Ag 固溶体合金纳米粒子共溅射到液体聚乙二醇基底上

• 发表时间: 2022
• 作者: Mingbei Zhu;Mai Thanh Nguyen and Tetsu Yonezawa
• 通讯作者: Mai Thanh Nguyen and Tetsu Yonezawa