【公開日：2024.07.25】【最終更新日：2024.06.03】

課題データ / Project Data

課題番号 / Project Issue Number

23NM5427

利用課題名 / Title

機能材料の探索および応用の研究

利用した実施機関 / Support Institute

物質・材料研究機構 / NIMS

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）物質・材料合成プロセス/Molecule & Material Synthesis（副 / Sub）-

【重要技術領域 / Important Technology Area】（主 / Main）マテリアルの高度循環のための技術/Advanced materials recycling technologies（副 / Sub）-

キーワード / Keywords

粒度分布測定（静的光散乱）/ Particle size distribution measurement (static light scattering), Graphene

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)

唐 捷

所属名 / Affiliation

物質・材料研究機構

共同利用者氏名 / Names of Collaborators in Other Institutes Than Hub and Spoke Institutes

Lin Shiqi,Gao Rensheng

ARIM実施機関支援担当者 / Names of Collaborators in The Hub and Spoke Institutes

服部晋也

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

NM-011：フーリエ変換赤外分光光度計
NM-015：粒度分布測定装置

報告書データ / Report

概要（目的・用途・実施内容）/ Abstract (Aim, Use Applications and Contents)

Graphene, a two-dimensional carbon nanomaterial with a large specific surface area, high electrical conductivity, high mechanical strength, and good chemical stability, is considered as a most promising electrode material for supercapacitors. However, there are still some issues in the application of graphene materials for supercapacitors. The particle size and distribution of graphene material particles will affect the characteristics of the graphene electord prepared by a slurry coating process and final supercapacitor performance. Therefore, it is necessary to fully understand the size and distribution of graphene material particles.

実験 / Experimental

At first the graphene material was added in to ethanol with a concertation of 0.05 mg/mL, and dispersed by an ultrasonic cleaner with a temperature of 25 ° C. The color of the ethanol dispersion becomes depth with the increase of the ultrasonic time, indicating the fine dispersion of the graphene materials. After 10 mins ultrasonic treatment, the dispersion was further diluted 10 times and analyzed by a Laser Diffraction Particle Size Analyzer SALD-2100 (Shimadzu) under room temperature. Fourier transform infrared spectroscopy (FTIR, JASCO FT/IR-6100) were also employed to characterize the structural features. 

結果と考察 / Results and Discussion

From the FT-IR spectra, the obtained graphene only showed weak C=O and strong C=C peaks, suggesting good crysralline structre of the graphene. As shown in Figure 1, the particle size of graphene material in 0.005 mg/ml dispersion is 4.39 mm, and the particle distribution index (PDI) value is 0.24. The PDI value of the graphene material is less than 0.3, proving that the sample The size is uniform, indicating that the graphene material dispersion has good dispersion, uniform particle size and good stability. Correspondingly, supercapacitors with a specific capacitance of 160 F/g is prepared using this graphene material. 

図・表・数式 / Figures, Tables and Equations

Fig 1. Particle size distribution of graphene material.

その他・特記事項（参考文献・謝辞等） / Remarks(References and Acknowledgements)

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)

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