Recent advances in catalysts for direct methanol fuel cells
Recent advances in catalysts for direct methanol fuel cells
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DOI：
10.1039/c1ee01307f
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发表时间：
2011-08
影响因子：
32.5
通讯作者：
Xiao Zhao;M. Yin;Liang Ma;Liang Liang-Liang;Changpeng Liu;Jianhui Liao;T. Lu;W. Xing
中科院分区：
文献类型：
--
作者：
Xiao Zhao;M. Yin;Liang Ma;Liang Liang-Liang;Changpeng Liu;Jianhui Liao;T. Lu;W. Xing
在过去的几十年里，直接甲醇燃料电池（DMFC）作为清洁和高效的能量转换装置得到了广泛的发展。然而，它们对用于阳极和阴极的昂贵的Pt基催化剂的依赖使得它们不适合大规模商业化。解决这一问题的根本办法是开发低铂和非铂催化剂。关于这个问题，低Pt合金和核-壳状催化剂，以及非铂Pd-Me、Ru-Se和热处理的MeNxCy基催化剂已经取得了相当大的进展。这一观点回顾了提高这些催化剂的成本效益和效率的潜在途径。基本的组成，活性和结构，活性关系的理解，创新的合成，和有前途的发展方向突出。在耐久性方面，介绍了这些催化剂的主要降解机理和相应的缓解策略。
Over the past few decades, direct methanol fuel cells (DMFCs) have been intensively developed as clean and high-efficiency energy conversion devices. However, their dependence on expensive Pt-based catalysts for both the anode and the cathode make them unsuitable for large-scale commercialisation. The essential solution to addressing this shortfall is the development of low-Pt and non-Pt catalysts. Regarding this issue, considerable advances have been made with low-Pt alloys and core-shell-like catalysts, as well as non-platinum Pd–Me, Ru–Se and heat-treated MeNxCy-based catalysts. This perspective reviews potential pathways for increasing the cost-effectiveness and efficiency of these catalysts. Fundamental understanding of the composition–activity and structure–activity relationships, innovative synthesis, and promising developmental directions are highlighted. Regarding durability, the main degradation mechanism of these catalysts and the corresponding mitigating strategies are presented.