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| 1 | One step NaBH_4 reduction of Pt-Ru-Ni catalysts on different types of carbon supports for direct ethanol fuel cells : Synthe sis and characte rization显示文摘The ternary catalyst Pt75Ru5Ni20 was conducted on various types of carbon supports including functionalized Vulcan XC-72R(f-CB),functionalized multi-walled carbon nanotubes(f-MWCNT),and mesoporous carbon(PC-Zn-succinic)by sodium borohydride chemical reduction method to improve the ethanol electrooxidation reaction(EOR)for direct ethanol fuel cell(DEFC).It was found that the particle size of the metals on f-MWCNT was 5.20 nm with good particle dispersion.The alloy formation of ternary catalyst was confirmed by XRD and more clearly described by SEM element mapping,which was relevant to the efficiency of the catalysts.Moreover,the mechanism of ethanol electrooxidation reaction based on the surface reaction was more understanding.The activity and stability for ethanol electrooxidation reaction(EOR)were investigated using cyclic voltammetry and chronoamperometry,respectively.The highest activity and stability for EOR were observed from Pt75Ru5Ni20/f-MWCNT due to a good metal-carbon interaction.Ru and Ni presented in Pt-Ru-Ni alloy improved the activity and stability of ternary catalysts for EOR.Moreover,the reduction of Pt content in ternary catalyst led to the catalyst cost deduction in DEFC. | Napha Sudachom Chompunuch Warakulwit Chaiwat Prapainainar Thongthai Witoon Paweena Prapainainar | 2017 | 燃料化学学报2017，45，5： | 4 |
| 2 | 水基溶胶凝胶法制备纳米ITO及Pt-ITO/C对乙醇的电催化氧化显示文摘通过水基溶胶凝胶法制备了纳米铟锡氧化物,并首次将其用作燃料电池的阳极助催化剂.通过循环伏安法测试了酸性溶液中不同扫描速率、不同乙醇浓度及不同扫描起始电位对三种催化剂电催化氧化活性的影响,较系统地分析了Pt-ITO/C对乙醇的电催化氧化.实验表明扫描速率的增加和乙醇浓度的增加都可以提高催化剂活性,扫描起始电位的变化对催化剂活性基本无影响.且载Pt量相同的催化剂对乙醇电催化氧化活性的顺序为:Pt-ITO/C>Pt/C>Pt-In2O3/C.所以ITO具有良好的助催化作用,对直接乙醇燃料电池的发展具有一定的指导意义. | 王景文 李月霞 郭道军 | 2011 | 曲阜师范大学学报(自然科学版)2011，37，4： | 1 |
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