https://scholars.lib.ntu.edu.tw/handle/123456789/546708
標題: | Electrochemical and microstructural investigations of PTFE nanocompounds synthesized by atmospheric-pressure plasma jet | 作者: | Chen, Y.-Y. Yeh, M.-H. Chung, T.-F. JER-REN YANG JIAN-ZHANG CHEN I-CHUN CHENG JERRY CHENG-CHE HSU KUO-CHUAN HO Tsai, Shao-Pu |
公開日期: | 2020 | 卷: | 167 | 期: | 5 | 來源出版物: | Journal of the Electrochemical Society | 摘要: | A nitrogen DC-pulse atmosphere pressure plasma jet (APPJ) is used to convert ferric nitrate (Fe(NO3)3) and chloroplatinic acid (H2PtCl6) mixed liquid precursor films into PtFe nanocompounds on a fluorine-doped tin oxide (FTO) substrate. Scanning transmission electron microscopy indicates nanoparticles distributed on a thin continuous layer on the FTO substrate. The APPJ-synthesized PtFe nanocompounds contain a mixture of crystalline and amorphous phases. X-ray photoelectron spectroscopy shows that most Pt is in the metallic phase and most Fe, in the oxidized phase. A dye-sensitized solar cell (DSSC) with only 5-s APPJ-processed PtFe counter electrode (CE) shows significantly improved efficiency. This suggests the rapid processing capability of the nitrogen DC-pulse APPJ. A PtFe prepared with higher H2PtCl6/Fe(NO3)3 volume ratio shows better catalytic performance, as confirmed by cyclic voltammetry, electrochemical impedance spectroscopy, and Tafel experiments. The DSSC with APPJ-processed PtFe CE shows comparable efficiency to that of 15-min furnace-calcined Pt CE, suggesting that the APPJ processed PtFe requires less Pt. © The Author(s) 2019. Published by ECS. |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85077167952&partnerID=40&md5=4ee0cf39d78959a1a4d30885b5bcc024 https://scholars.lib.ntu.edu.tw/handle/123456789/546708 |
DOI: | 10.1149/2.0042005JES | SDG/關鍵字: | Atmospheric pressure; Binary alloys; Chlorine compounds; Cyclic voltammetry; Dye-sensitized solar cells; Efficiency; Electrochemical impedance spectroscopy; High resolution transmission electron microscopy; Nanocomposites; Nitrogen; Nitrogen plasma; Oxide films; Plasma jets; Scanning electron microscopy; Tin oxides; X ray photoelectron spectroscopy; Atmosphere pressure; Atmospheric pressure plasma jets; Catalytic performance; Chloroplatinic acid; Counter electrodes; Fluorine doped tin oxide; Microstructural investigation; Scanning transmission electron microscopy; Platinum |
顯示於: | 材料科學與工程學系 |
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