Stable platinum nanostructures on nitrogen-doped carbon obtained by high-temperature synthesis for use in PEMFC
Stable platinum nanostructures on nitrogen-doped carbon obtained by high-temperature synthesis for use in PEMFC
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通过高温合成获得的氮掺杂碳上稳定的铂纳米结构用于质子交换膜燃料电池
DOI：
10.1007/s10800-014-0664-4
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发表时间：
2014
影响因子：
2.9
通讯作者：
C. Roth
中科院分区：
文献类型：
--
作者：
B. Peter;J. Melke;F. Muench;W. Ensinger;C. Roth
我们提出了一种新的、简便的合成路线来制备以氮掺杂碳为载体的稳定的铂基聚合物电解质膜燃料电池催化剂。将铂纳米颗粒修饰在含氮聚合物聚苯胺(PANI)上，然后在750℃氮气气氛下碳化。因此，氮掺杂的碳负载铂催化剂的制备得到了均匀分布的小金属颗粒，否则很难获得。最值得注意的是，铂纳米颗粒在碳化过程中并没有显着增长。相比之下，在经过相同热处理的碳材料上，商用标准催化剂显示出严重的颗粒生长。由于PANI衍生催化剂具有较高的热稳定性，在加速应力测试中表现出良好的长期稳定性，在5×15×10-6 cm~2单电池中作为正极材料具有良好的性能。合成过程不需要特殊的实验室设备，因此很容易扩大到工业催化剂生产。
We propose a novel, facile synthesis route to produce stable platinum-based polymer electrolyte membrane fuel cell catalysts supported on nitrogen-doped carbon. Platinum nanoparticles were decorated on polyaniline (PANI), a nitrogen-containing polymer, before its subsequent carbonization at 750 °C under nitrogen atmosphere. Thus, nitrogen-doped carbon-supported platinum catalysts were produced with homogeneously distributed small metal particles, which are otherwise difficult to obtain. Most remarkably the platinum nanoparticles did not grow significantly during the carbonization step. In contrast, commercially available standard catalysts on carbon materials subjected to the same heat treatment showed severe particle growth. In accordance with the high thermal stability, the PANI-derived catalyst shows good long-term stability in accelerated stress test and a promising performance as cathode material in 5 × 5 cm2single cells. The synthesis is carried out without the need for special laboratory equipment, so it will be easy to scale up for industrial catalyst production.
影响因子：
3.9
作者：
I. Lisiecki;H. Sack;K. Weiss;J. Urban;M. Pileni
通讯作者：
M. Pileni
硫酸盐和磷酸盐改性氧化铝对Mo/Al2O3 HDS反应催化性能的影响
影响因子：
7.3
作者：
Seo Il Kim;S. Woo
通讯作者：
S. Woo
在一定温度范围内 1.2 V 恒电位保持状态下影响碳和碳负载铂和铂/钴合金催化剂稳定性的因素的研究
影响因子：
9.2
作者：
S. Ball;S. Hudson;D. Thompsett;B. Theobald
通讯作者：
B. Theobald