【公開日：2023.08.01】【最終更新日：2023.05.14】
課題データ / Project Data
課題番号 / Project Issue Number
22NU0080
利用課題名 / Title
CNT担持コアシェル構造を有するPt基材ナノ粒子とその電気化学的活性
利用した実施機関 / Support Institute
名古屋大学 / Nagoya Univ.
機関外・機関内の利用 / External or Internal Use
内部利用（ARIM事業参画者以外）/Internal Use (by non ARIM members)
技術領域 / Technology Area
【横断技術領域 / Cross-Technology Area】（主 / Main）計測・分析/Advanced Characterization（副 / Sub）-
【重要技術領域 / Important Technology Area】（主 / Main）革新的なエネルギー変換を可能とするマテリアル/Materials enabling innovative energy conversion（副 / Sub）-
キーワード / Keywords
コアシェル, ナノ粒子, 電気化学,電子顕微鏡/Electron microscopy
利用者と利用形態 / User and Support Type
利用者名（課題申請者）/ User Name (Project Applicant)
斎藤 永宏
所属名 / Affiliation
名古屋大学
共同利用者氏名 / Names of Collaborators in Other Institutes Than Hub and Spoke Institutes
ワン シャオヤ,ワン イライ
ARIM実施機関支援担当者 / Names of Collaborators in The Hub and Spoke Institutes
利用形態 / Support Type
（主 / Main）機器利用/Equipment Utilization（副 / Sub）-
利用した主な設備 / Equipment Used in This Project
報告書データ / Report
概要（目的・用途・実施内容）/ Abstract (Aim, Use Applications and Contents)
A high-rate oxygen reduction reaction (ORR) is necessary for polymer electrolyte membrane fuel cells (PEMFC). In this work, by using a solution plasma technique (SPP), Pt catalytic particles coated with N-doped graphene (Pt-NG) were effectively produced at 25 oC. We employed TEM to characterize the morphologies of N-doped graphene. According to TEM images, the average diameter of Pt particles was 4 nm, while the graphene layer thickness was less than 1 nm.
実験 / Experimental
The dried sample was dispersed in ethanol and sonicated for 10 mins. The 50 µl suspension was then dropped onto a Transmission Electron Microscope (TEM) grid and analyzed by TEM (JEM-2100plus and JEM-2100F/HK, JEOL).
結果と考察 / Results and Discussion
TEM images of Pt-NG particles with the magnification of 300 000×, 1 000 000×, and the size distribution of Pt-NG particles are shown in Figure 1a–c, respectively. TEM images of 0.75Pt-NG/0.75SWCNT (Pt-NG particles are mixed with SWCNT with a ratio of 1:1; Pt loading is 20% in total) with magnification of 100 000×, 300 000×, and 1 000 000× are shown in Figure 2d–f. The core-shell structure was observed with a core size of 4 nm (Figure 1c), and with the multilayer shell of 0.5 nm.
図・表・数式 / Figures, Tables and Equations
Figure 1 (a) Transmission electron microscope (TEM) images of Pt-NG particles, (b) HRTEM images of Pt-NG particles, (c) size distribution of Pt-NG, (d) TEM images of Pt-NG/single-walled carbon nanotube (SWCNT) , (e) TEM images of Pt-NG/SWCNT, (f) TEM images of Pt-NG/SWCNT
その他・特記事項（参考文献・謝辞等） / Remarks(References and Acknowledgements)
This research is based on results obtained from a project commissioned by the New Energy and Industrial Technology Development Organization (NEDO, Grant JPNP20003). This work was supported by Monozukuri R&D Support Grant Program for Small and Medium Enterprises Agency (SMEs), Grant Number JPJ005698. In addition, this work was partially supported by Japan Science and Technology Agency (JST)-Program on Open Innovation Platform with Enterprises Research Institute and Academia (OPERA), Grant JPMJOP1843, and Strategic International Collaborative Research Program (SICORP), Grant JPMJSC18H1 of JST.
成果発表・成果利用 / Publication and Patents
論文・プロシーディング（DOIのあるもの） / DOI (Publication and Proceedings)
-
Duangkamol Dechojarassri, Effect on percolation threshold of catalytic layer: Pt/N‐Doped graphene shell onto SWCNT for ORR electrode, Fuel Cells, 23, 4-14(2022).
DOI: 10.1002/fuce.202200020
口頭発表、ポスター発表および、その他の論文 / Oral Presentations etc.
特許 / Patents
特許出願件数 / Number of Patent Applications：0件
特許登録件数 / Number of Registered Patents：0件