新型碳纤维负载直接乙醇燃料电池Pt-SnO<sub>2</sub>阳极催化剂的性能研究

王旭红; 朱慧; 黄金山; 纪网金; 骆秀淇

新型碳纤维负载直接乙醇燃料电池Pt-SnO₂阳极催化剂的性能研究

1.
常州大学材料科学与工程学院, 江苏常州 213164;
2.
常熟理工学院化学与材料工程学院, 江苏常熟 215500

基金项目: 江苏省自然科学基金（BK2007704）。

详细信息

通讯作者:
朱慧，Tel：13812981831，E-mail：keying716@gmail.com。

中图分类号: TM911.4
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出版历程
- 收稿日期: 2013-12-19
- 修回日期: 2014-02-23
- 刊出日期: 2014-06-30

Performance of carbon fiber supported Pt-SnO₂ anode catalyst for direct ethanol fuel cell

1.
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China;
2.
School of Chemistry and Materials Engineering, Changshu Institute of Technology, Changshu 215500, China

摘要

摘要: 采用静电纺丝技术制备了碳纤维基纳米Pt-SnO₂阳极催化剂（Pt/Sn原子比为3）。通过X射线衍射（XRD）、红外光谱（FT-IR）、扫描电子显微镜（SEM）等技术对该催化剂进行了表征，并采用循环伏安法对其在乙醇燃料电池中的阳极催化活性进行了评价。结果表明，纳米Pt-SnO₂催化剂均匀地分散在碳纤维骨架上；随着烧结温度的升高，碳纤维载体的致密度越高、导电性能越好。电催化性能测试表明，烧结温度为800 ℃时催化剂的峰电流密度最大，达到0.11 A/cm²，抗中毒能力也最强。单电池的发电性能表明，在一定的乙醇浓度下，1.0 mL/min进样流速具有最优的发电效率。
- 直接乙醇燃料电池 /
- 静电纺丝 /
- 碳纤维 /
- Pt-SnO₂ /
- 阳极催化剂
Abstract: Nano Pt-SnO₂ anode catalyst (with a Pt/Sn atomic ratio of 3) supported on carbon fiber was synthesized via electrospinning technology. The catalyst was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and scanning electron microscopy (SEM); its activity for ethanol oxidation as an anode in direct ethanol fuel cell was evaluated through cyclic voltammogram (CV). The results showed that nano Pt-SnO₂ catalyst is uniformly scattered around the skeleton of vesicular carbon fiber. The carbon fiber exhibits higher density, better conductive performance with the increase of sintering temperature. The electrocatalytic test results indicated that at a sintering temperature of 800 ℃, the catalyst exhibits the best peak current density (0.11 A/cm²) and the strongest tolerance to CO. Single cell power performance test suggests that highest power generation efficiency can be achieved with an injection velocity of 1.0 mL/min with proper ethanol concentration.
- direct ethanol fuel cell /
- electrospinning /
- carbon fiber /
- Pt-SnO₂ /
- anode catalyst

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参考文献(18)

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