Pt-CoP/C as an alternative PtRu/C catalyst for direct methanol fuel cells
Pt-CoP/C as an alternative PtRu/C catalyst for direct methanol fuel cells
复制标题
Pt-CoP/C 作为直接甲醇燃料电池的替代 PtRu/C 催化剂
DOI：
10.1039/c6ta07896f
复制
发表时间：
2016-12-21
影响因子：
11.9
通讯作者：
Xing, Wei
中科院分区：
文献类型：
--
作者：
Chang, Jinfa;Feng, Ligang;Xing, Wei
PtRu/C材料是直接甲醇燃料电池中最知名和最有效的阳极催化剂之一。然而，这种燃料电池技术的进一步发展迫切需要具有更高性能和更低成本的新型阳极催化剂。在此，我们提出，一个CoP促进的Pt催化剂作为一个高活性，抗中毒和低Pt负载直接甲醇燃料电池（DMFC）的催化剂。原位衰减全反射表面增强红外辐射吸收光谱（ATR-SEIRAS）技术揭示了CoP在Pt基催化剂中的存在可以促进甲醇氧化为CO2。基于该阳极催化剂的燃料电池最大功率密度为88.5mW cm ~（-2），比传统的阳极催化剂的功率密度高出约10%。1.4是基于具有相同Pt负载量的现有技术商业PtRu/C催化剂的两倍。目前的工作表明，Pt-CoP/C将是一个非常有竞争力的替代PtRu/C作为有前途的阳极催化剂的规模生产的DMFC的整体性能和成本效益。
PtRu/C material is one of the most well-known and efficient anode catalysts in direct methanol fuel cells. Nevertheless, new anode catalysts with even higher performance and lower cost are highly demanded for the further development of this fuel cell technology. Herein, we present, a CoP-promoted Pt catalyst as a highly active, anti-poisoning and low-Pt loading catalyst for direct methanol fuel cells (DMFCs). The in situ attenuated total reflection surface-enhanced infrared radiation absorption spectroscopy (ATR-SEIRAS) technique revealed that the presence of CoP in the Pt-based catalyst can promote the methanol oxidation to CO2. A maximum power density of 88.5 mW cm(-2) is achieved on a fuel cell based on this novel anode catalyst, which is ca. 1.4 times as high as that based on the state-of-the-art commercial PtRu/C catalyst with the same Pt loading. The present work demonstrates that the Pt-CoP/C will be a very competitive alternative to PtRu/C as the promising anode catalyst for the scale-up production of DMFCs in terms of overall performance and cost effectiveness.