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非常耐用的,耐焦和耐硫的,灵活的质子陶燃料电池
Chuancheng Duan1, Robert J Kee2, Huayang Zhu2
1Colorado School of Mines, Golden, CO, USA. cduan@mines.edu.
Nature
|May 11, 2018
概括
质子陶燃料电池具有出色的耐用性和燃料灵活性,在包括碳化合物和氨在内的各种燃料上有效运行超过6000小时,降解最小. 这突显了它们的商业潜力.
科学领域:
- 电化学
- 材料科学
- 能源转换
背景情况:
- 质子陶燃料电池 (PCFC) 使用和碳化合物燃料提供高效率.
- 固体氧化物燃料电池 (SOFC) 面临着直接使用碳化合物的焦化和硫中毒等挑战.
- 碳化合物燃料的长期耐用性研究有限.
研究的目的:
- 系统地评估PCFC的长期耐用性和燃料灵活性.
- 在现实运行条件下对各种燃料进行PCFC性能评估.
- 调查焦化和硫中毒对PCFC的影响.
主要方法:
- 长期测试PCFC超过6000小时.
- 使用了11种不同的燃料:,甲,天然气,,丁同体,异,甲醇,乙醇和氨.
- 在500-600°C的温度下运行,包括暴露于硫化.
主要成果:
- 在大多数燃料中,每1000小时的降解率低于1.5%.
- 即使经过数千小时的连续运行,也没有观察到焦化.
- 在商业燃料水平下,PCFC能够承受温度波动,并对硫中毒有弹性.
结论:
- PCFC具有显著的燃料灵活性和长期稳定性,在碳化合物利用方面表现优于传统SOFC.
- 由于其强度和效率,该技术对商业应用具有显著的前景.
- 碳化合物是清洁能源的可行替代品,克服了现有的燃料电池技术的关键局限性.
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